The following warnings occurred:
Warning [2] Undefined array key 127650 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127656 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127657 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127658 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127659 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127663 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127722 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127725 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127730 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127731 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127734 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127756 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127760 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127769 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127770 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127786 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127789 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127791 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127793 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127794 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127796 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127798 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127800 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127803 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127809 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127812 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127817 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127819 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127836 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127838 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127840 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127843 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127857 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127871 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127874 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127878 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127881 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127882 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127887 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127888 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127889 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127890 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127902 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127906 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127914 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127920 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127926 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127928 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127930 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $thread - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $fid - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127722 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127731 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 127760 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
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The 45s gets closer to reality!



#2

Got my physical "print" back. Image is shown below next to a 32s2 for size comparisons.

One thing I have noticed is that the 3D model definition has the keys shifted a bit too much up toward the display. A real 45s woudl have the keys shifted down a few MM closer to the bottom.

Very cool. Now...how do I turn my blob of plastic into the cool colorized version with symbols on my keys? :-)


#3

Quote:
Got my physical "print" back. Image is shown below next to a 32s2 for size comparisons.

One thing I have noticed is that the 3D model definition has the keys shifted a bit too much up toward the display. A real 45s woudl have the keys shifted down a few MM closer to the bottom.

Very cool. Now...how do I turn my blob of plastic into the cool colorized version with symbols on my keys? :-)


I think the question should be "how do I turn my blob of plastic into something that calculates?"

Add one LCD, one PCB, some more plastic blobs for keys that push, a pinch of *fix, and hello 1st OpenRPN prototype.

Dave.


#4

At HHC 2007, I showed (and passed around) a DIY3 calculator in an ABS plastic case made by FDN (Fused Deposition Modeling, a 3D printing technology). I would have used black ABS for the case, but I was able to get slightly faster turnaround time with white. The electronics and software were almost the same as what Richard Ottosen and I have shown before in a laminated laser-cut case.

I designed the case top, case bottom, and button models in SolidWorks, exported them as STL files, and had them fabricated at TechShop. I'm having trouble with my old camera, but a few photos can be seen here.

It is a functional calculator that emulates the HP-21, HP-22, HP-25, HP-27, HP-33C, and HP-37E.

Unlike the laminated laser-cut case, there is no easy way to use an overlay to provide legends for the keys. A 41-style overlay that surrounded the keys is possible, but it would be nice to get the primary legends on the keys themselves. The 3D printer won't do multiple colors, and doesn't have enough resolution for key legends in any case. I did design in some labeling on the case back, which can be seen in one of the photos.

The top surface of the button as produced on the printer has an interesting texture to it, and is probably not suitable for silkscreening. However, it is possible to smooth the ABS with careful use of acetone. I have not yet tried this.

I expect that we will likely use injection molding for keys within the next year, but unfortunately not double-shot molding. However, we have a few tricks up our sleeves that I'm not yet ready to reveal.


#5

Nice work. One of the better processes I found for key legends is laser etching followed by back-filling with a colored resin.

#6

Quote:
One thing I have noticed is that the 3D model definition has the keys shifted a bit too much up toward the display

I noticed that too. Unfortunately I was very busy that week and I hoped no one would notice (or take me up on my offer when I said my CAD files were available! ;)

Looks pretty cool tho..


Regards,
Pal


#7

Yes, it does look good! Feels nice and solid too.

No problems...great job creating the cad files.

:-)


#8

Looks really promising! Run Fo... Gene run!! :)

Pal G., you have e-mail.

Edited: 30 Oct 2007, 12:46 a.m.


#9

Seriously, though, what would it take to create an OpenRPN 45s?

It seems as if there is enough talent here to do it. If members are able to dissect the accuracy of algorithms, ferret out singularities in RPN programming, create functional calculators and enclosures, generate documentation do we really need to wait for HP to make our dream calculator?

Can we use the Free42 code base as a starting point for the OpenRPN 45? I would be certainly be willing to lend a hand in my small way if there is a quorum.

Cheers.


#10

People with time and talent to contribute to software and hardware development. At the moment those seem to be scarce resources. Porting Free42 wouldn't be a bad way to get machines up and running, which is why it has been brought up before.


#11

Free42 seems to eat a *lot* of memory which might hinder its use.
On my desktop it uses about 18Mb of memory to start with only a little on it.

- Pauli

#12

There are probably two main hurdles:

1) Money

Time is free, but someone has to pay for plastics, PCB's and parts.
To get the electronics and PCB for the first prototype will at a minimum be several hundred dollars. You also have to factor in a second spin at the PCB just in case there is a little gotcha as murphy will always ensure there is. $500 is a realistic budget.
You can save on cost by trying to get free samples for stuff, free boards through work etc, but often it's just easier to hand over the dollars and get your parts in a few days.

I have no idea what the plastics will cost, and you might need a second spin at those as well due to any number of reasons. Especially the keys, getting those right in the first spin might be tricky, but if someone has access to a rapid-prototype machine as some seem to do, then you can.

2) Motivation

Projects like this *always* come down to just one person taking the reins and "just doing it".
When you try involving multiple people with different skill sets, time gets frittered away, decisions don't get made, you loose focus, people eventually loose interest, and the project flops.
You can solve some of this by not trying to collaborate too much. Have someone come up with the plastics and housing first (with some checking by the electronics person), and get it made. Then have someone design the electronics to fit. Only then worry about the software.

That first prototype in your hands is absolutely vital, and do try to avoid perfectionism. That first prototype just has to be good enough to play with, not perfect down to every last detail.

Software is the last thing that you should be concerned with. I have no doubt that if people had hardware in their hands, suitable software would come from all directions.

Remember, a calculator is a *hardware* project.

A project like this is not hard. If I had the mechanical CAD skills and access to a rapid-prototype machine then I could have a complete calculator prototype in my hands in a matter of weeks.

Dave.


Edited: 30 Oct 2007, 10:29 p.m.


#13

Alright. So let's say even $750 as a budget. Do we have enough people here to contribute to such a project? Let's say donations of between $25 and $75 each?

We have such generous contributions made by forum members in response to questions, so I can easily imagine having their expertise for a project such as this. Now for the sake of argument let me throw some names out based on my "amateur" observations after being on this forum for only a few weeks; my infatuation with HP calcs runs into the decades, though. The people listed can, of course, opt in or opt out. Others can offer their own contributions:

Physical Design: Gene Wright, Jake Schwartz, Bruce, PalG, ???

CAD: Eric Smith, Richard Ottosen, PalG, Jean-Yves ???

Hardware: Eric Smith, Richard Ottosen, DaveJ, ???

Algorithms: Paul Dale, Allain Millen, Karl Schneider, ???

Layout/Labeling/Documentation: Walter Bonin, Pavneet Arora, ???

Who else wants to help out?

To my mind, at least, this sounds like a doable endeavour...

Quote:
There are probably two main hurdles:

1) Money

$500 is a realistic budget.

...

2) Motivation

When you try involving multiple people with different skill sets, time gets frittered away, decisions don't get made, you loose focus, people eventually loose interest, and the project flops.

Dave.

...



Edited: 1 Nov 2007, 7:13 a.m. after one or more responses were posted


#14

Since I founded the OpenRPN project a few years ago, I've already completed two enclosure designs down to details as specific as dome actuators.

For the past several months I've been leaning towards just getting the hardware out the door and to encourage software development.

If you have any further questions regarding OpenRPN I would be happy to address them here or via e-mail.

#15

What about Walter Bonin for the keyboard layout?

Alain Mellan and I contributed source code to OpenRPN. I think we were the only ones but I could be wrong on this. So we're decent bets for the firmware.


- Pauli


#16

Right on. I have adjusted the list. And besides, I was so completely floored with Walter quoting Cato in Latin that I was left trying to recall the Coles Notes version of Imperial Rome, i.e., Richard Harris' Imperium ;). Sorry I meant to write Robert Harris.

Cheers.

Quote:
What about Walter Bonin for the keyboard layout?

Alain Mellan and I contributed source code to OpenRPN. I think we were the only ones but I could be wrong on this. So we're decent bets for the firmware.

- Pauli


Edited: 1 Nov 2007, 6:55 a.m. after one or more responses were posted


#17

Hi Pavneet,

Quote:
I was left trying to recall the Coles Notes version of Imperial Rome, i.e., Richard Harris' Imperium ;)

?? I googled a bit but can't find a clue. Can you please explain this?

#18

Dear Walter,

High-school in Canada in the 70s meant that one would invariably see Coles Notes' versions of English Literature --- mainly Shakespeare --- being read/memorized in the hour before a test ;). Coles was a bookstore chain at the time. To quote from one site:

"Similar to classic notes or Cliff Notes, the books usually give quick summaries or an analysis on the subjects. Coles Notes are available on many different types of Literature topics including Shakespeare. They are easy to purchase online or even in bookstores. Prices are fairly reasonable if you are looking for that kind of help.

The largest problem with Coles Notes is students forget to cite these. Perhaps they are embarrassed because they chose to use Coles Notes or they think their instructors will never know. However, most instructors are aware of Coles Notes and they can recognize the use of these."

Imperium is a semi-fictionalized account of the life of Cicero:

http://www.amazon.com/Imperium-Novel-Ancient-Robert-Harris/dp/074326603X/ref=pd_bbs_sr_1/105-3436687-1894809?ie=UTF8&s=books&qid=1193914047&sr=8-1

Robert Harris has another one about Bletchley Park, called Enigma which was enjoyable as well.

Cheers.

Quote:
Hi Pavneet,

?? I googled a bit but can't find a clue. Can you please explain this?


#19

I'll be willing to fork out USD 750 up front easily for this. That is if someone picks up the glove, gets himself (or herself) in a dictatorial postion and starts getting the things done.

#20

Hello!

Quote:
There are probably two main hurdles:

1) Money
...
2) Motivation


I don't think so. When I read and see, what amounts of money people (me included) are ready to spend for vintage calculators, money should not be an issue here. And reading throgh some of the contributions here, I can see plenty of motivation too.

From my point of view, the project rather lacks the following items:

3) Consensus and
4) Leadership/Responsibiliy

Since full consensus will be impossible to reach ("Too many cooks spoil the broth"), at some point (now!) somebody must assume a leading role and boldly go ahead with what has been reached so far. Who wants to follow, follows, sends a down payment to cover development costs and contributes as good as he can towards completion of the software. The others wait for the next project that will suit their needs better.

As for me, I am not interested in a clone of an (any!) existing calculator since I could use the original one if I really needed it. Therefore, the OpenRPN calculators as they are now (all more or less hybrids between hp-15, hp-42 and hp-48) do not appeal to me at all. The calculator I would like to see (and contribute towards) is probably too different from anybody elses needs/wishes, that it will not materialise. At least not in hardware, but maybe as a software project on a device like an iPod Touch.

Nevertheless I would of course buy any awailable OpenRPN calculator out of solidarity with the developing team!

Greetings, Max


#21

Quote:
At least not in hardware, but maybe as a software project on a device like an iPod Touch.

Remembering what your needs were as you described them elsewhere in other threads, I should say you would be best suited with a PocketPC (like the Loox N560) with an assortment of very nice mathematical software like Spacetime and MathTablet, which do CAS and even RPN...;-) Moreover, you even could navigate with the PPC!!!

Quote:
Nevertheless I would of course buy any awailable OpenRPN calculator out of solidarity with the developing team!

Depending on prize and quality, I second that! As long as it doesn't look like DIY and has the genuine feel of, say, the 15C or 35s - I'd pay the 35s's current prize.

Edited: 31 Oct 2007, 12:02 p.m.


#22

Hi all,

I would be pleased to collaborate to this project, in what concerns the design of the moulded plastic parts, by making the 3D CAD-files.
You'll find HERE a previous thread where I told about the 3D virtual HP-41C I've drawn. Of course, it isn't a "made on my own" calculator, but it shows my interest for such a project.

Kind regards.

Jean-Michel.

#23

Quote:
Depending on prize and quality, I second that! As long as it doesn't look like DIY and has the genuine feel of, say, the 15C or 35s - I'd pay the 35s's current prize.

As an (educated) ballpark figure, you would have make at least several hundred units up front to get a final price near to the 35S. And that would probably be at-cost.

Dave.


#24

Quote:
As an (educated) ballpark figure, you would have make at least several hundred units up front to get a final price near to the 35S. And that would probably be at-cost.

If I understand you right, you're telling me that the prize I'm willing to pay is to low - and you are probably right.
I just think that if you want to appeal to buyers outside the MoHPC, you can not surpass the 35s's current prize by very much.

Additionally, for outside-MoHPC-buyers, the 45s should be of at least the same build quality and look and feel as the 35s. I can't imagine anyone paying more for a slightly DIY-looking machine, even if it had all those cool 42s-features...

I just thought of something else, forgive me if it already has been mentioned. Has someone checked if it's OK to just take HP's design? Under European law this could be seen as product design piracy - at least as soon as you start to sell the thing.


Edited: 1 Nov 2007, 5:17 a.m.

#25

Quote:
I don't think so. When I read and see, what amounts of money people (me included) are ready to spend for vintage calculators, money should not be an issue here. And reading throgh some of the contributions here, I can see plenty of motivation too.

From my point of view, the project rather lacks the following items:

3) Consensus and
4) Leadership/Responsibiliy

Since full consensus will be impossible to reach ("Too many cooks spoil the broth"), at some point (now!) somebody must assume a leading role and boldly go ahead with what has been reached so far.


That's what I'm saying, someone has to "just do it".

Plastics come first. If someone comes up with a set of plastics and keys, only then will the rest follow.

I tentatively tried to associate my uWatch calculator at one point with OpenRPN, and was left holding an empty bag. So I won't be quick to jump down the same path again.
BUT, if magically I was presented with some real plastic in my hands, then maybe, just maybe, I might be tempted to design some electronics for it. But I'll believe it when I see it.


Quote:
Who wants to follow, follows, sends a down payment to cover development costs and contributes as good as he can towards completion of the software. The others wait for the next project that will suit their needs better.

Don't underestimate how much it will cost. And sharing cost around and/or trying to get any sort of contribution or up-front order is a very dangerous thing to do.

Quote:
As for me, I am not interested in a clone of an (any!) existing calculator since I could use the original one if I really needed it. Therefore, the OpenRPN calculators as they are now (all more or less hybrids between hp-15, hp-42 and hp-48) do not appeal to me at all. The calculator I would like to see (and contribute towards) is probably too different from anybody elses needs/wishes, that it will not materialise. At least not in hardware, but maybe as a software project on a device like an iPod Touch.

Nevertheless I would of course buy any awailable OpenRPN calculator out of solidarity with the developing team!


My own needs are probably different again. I don't want nor need a graphing or programmable calculator. Just a nice basic scientific calculator is all I want.

I'm not a big fan of "clones" either. I think a new calc should do it's own thing.

Dave.


#26

Let's consider the 45s design as presented thus far. To me, this is an incredibly appealing design. What is the opinion of us focusing just on this particular model and moving it along?

Quote:


My own needs are probably different again. I don't want nor need a graphing or programmable calculator. Just a nice basic scientific calculator is all I want.

I'm not a big fan of "clones" either. I think a new calc should do it's own thing.

Dave.



#27

Quote:
Let's consider the 45s design as presented thus far. To me, this is an incredibly appealing design. What is the opinion of us focusing just on this particular model and moving it along?

The problem might be the LCD.
A full graphic LCD of this size complicates things, a lot. I would recommend the screen be changed to a standard 2 or 4 line character dot-matrix LCD module.
This might lower the cost, would increase your component sourcing options, and *greatly* reduce the complexity of the software and processing power required.

Dave.

#28

Quote:
Let's consider the 45s design as presented thus far. To me, this is an incredibly appealing design. What is the opinion of us focusing just on this particular model and moving it along?

There were several 45s designs presented here so far(in order of appearance in this forum:

2007/06/06: The 45s started here, actually the name was created by Karl Schneider in message #7, the first design labeled "45s" shows up in message #31;

2007/06/24: 35s-based

2007/10/11: 42s-based (message #40 in this thread), image created by Pal G. is here: ,

2007/10/22: 35s-based ,

2007/10/25: 35s-based ,

2007/10/26: 35s-based .

Hope I didn't mess the line nor forgot any important contribution - took me some time to excavate - I skipped the 4-bangers). Which 45s are you talking about?

Further points:

I second Dave in the LCD issue. Let's try to eat the cake in pieces ;) -- we may turn to graphics later.

Alternatively, Voyager-based design drafts may be better for several reasons. Plastic parts are available at reasonable cost. Another advantage is true pocketability even if we'd need it a few mm thicker. Of the drafts shown here, the 15cx is my favourite, because it can do all a 42s can do, and features a better user interface with 8 soft keys you may access permanently and a wealth of functions directly accessible:

If people are afraid of the feature set, it can be cut down easily.

HTH a bit,

Walter

P.S. Since I'm in southern China right now, let me state any parts for a small run seem to be available everywhere at minimum cost. Impressive, but I did not go into negotiations :)

Edited for the post scriptum.


Edited: 1 Nov 2007, 4:45 a.m.


#29

I was referring to the design presented by Gene at HHC2007, but I am very happy to pursue a Voyager based design with the functionality of the 42s.

What do others think of honing in on this form factor?

Quote:
Hope I didn't mess the line nor forgot any important contribution - took me some time to excavate - I skipped the 4-bangers). Which 45s are you talking about?


#30

I'd definitely prefer a Voyager form factor.

- Pauli

#31

Hello!

Quote:
P.S. Since I'm in southern China right now, let me state any parts for a small run seem to be available everywhere at minimum cost. Impressive, but I did not go into negotiations :)

So let's get going... No, but you can also get very good quality parts in small batches made here in Europe! Just ask any company that does laser cutting and engraving of sheet metal (aluminium or staniness steel) for a quote and you will be surprised!

Why not get a real professional and rock-solid metal faceplate (absulotely nothing like DIY!) made? With a screen protctor made from mineral glass (like in a good watch), which can also be cut by laser. And underneath one of those stunningly beautiful high-contrast, view-angle-independent multi-line dot-matrix OLED displays that can be found at every corner in Hong-Kong? (But I think I'm getting boring with my luminous displays, am I?)

Greetings, Max

Edited: 2 Nov 2007, 9:45 a.m.


#32

Quote:
Hello!

So let's get going... No, but you can also get very good quality parts in small batches made here in Europe!

Greetings, Max



Agreed. When our local Linux group had an LCD kit project, we were able to get a small run of PCB's from some place in Europe for a very good price (Hungary?). Granted a calc PCB would be more complex
(multilayers) and cost more.

Ren

dona nobis pacem


#33

Quote:


Agreed. When our local Linux group had an LCD kit project, we were able to get a small run of PCB's from some place in Europe for a very good price (Hungary?). Granted a calc PCB would be more complex
(multilayers) and cost more.


The PCB will be fairly cheap, under $100 for a few prototypes.
I used PCB Cart www.pcbcart.com for my watch PCB and front panel.
If you need more than 2 layers then you are doing it wrong.

Dave.

#34

Quote:
And underneath one of those stunningly beautiful high-contrast, view-angle-independent multi-line dot-matrix OLED displays that can be found at every corner in Hong-Kong? (But I think I'm getting boring with my luminous displays, am I?)

With an OLED display it would be bye-bye battery life.

Dave.


#35

Hello!

Quote:
With an OLED display it would be bye-bye battery life.

I wouldn't mind at all. This here (sorry for the link in German) is what I would like to see, a two line alphanumeric display:

http://www.electronic-assembly.de/deu/pled/pled.htm

The operating current is stated with "15mA typical", so with three rechargeable 1000 mAh AAA cells, the battery life would be around 50 hours. Use it one hour every working day and you will have to recharge the batteries every second month. Not really a problem, is it?

Greetings, Max

NB: I am just waiting for the delivery from HongKong of a lillte gadget that I bought last week from eBay: An "image tank" (called DigiMate III OTG), actually an enclosure for notebook hard disks with USB conncetion and slots for common types of memory cards. The housing is all-metal, it has an internal LiIon battery, a 2 1/2 inch colour OLED display and comes complete with charger and cables, but without hard drive.
Replace the hard drive with a processor board and a keyboard and my "dream calculator" is almost there... The price? Two Euros and fifty cents.


#36

Quote:
I wouldn't mind at all. This here (sorry for the link in German) is what I would like to see, a two line alphanumeric display:

http://www.electronic-assembly.de/deu/pled/pled.htm

The operating current is stated with "15mA typical", so with three rechargeable 1000 mAh AAA cells, the battery life would be around 50 hours. Use it one hour every working day and you will have to recharge the batteries every second month. Not really a problem, is it?


Realistically you would use 2 AAA's or AA's which means the efficiency of your DC-DC converters plays a large part as well.

I would use AA's for that level of current, and you would use Alkaline/Lithium instead of rechargeable's. Unless you used your calc an awful lot of course. In any case, all the more reason to use AA's. A hand held calc should have plenty enough room inside for AA's

As much as I love LCD and looooong battery life, and even better, solar powered calcs (just from an engineering elegance point of view) - I gotta admit that an OLED display would set any DIY calc apart from the commercial models. In fact, the more I think about it, the more I think OLED it's gotta be. Hmm...

I have briefly thought about an OLD version of the uWatch.

Dave.


#37

Hello!

Quote:
I would use AA's for that level of current, and you would use Alkaline/Lithium instead of rechargeable's. Unless you used your calc an awful lot of course. In any case, all the more reason to use AA's. A hand held calc should have plenty enough room inside for AA's

If room is not a problem, AA is the better choice of course! However, I am used to rechargeables for many, many years now, I even have one in our alarm clock, where it lasts for over a year between charges. It helps calm down my "environmental concience" :-)
Here in Germany, rechargeable batteries (at least NiMH) are cheaper to buy than good alkalines!

Quote:
I gotta admit that an OLED display would set any DIY calc apart from the commercial models. In fact, the more I think about it, the more I think OLED it's gotta be.

I fell in love with OLED displays the moment I saw the first one. I can't imagine a better and more beautiful type of display. Early next year, the first OLED televisions and computer monitors will hit the market - can't wait to get one!

Quote:
I have briefly thought about an OLD version of the uWatch.

Oh yes, this would be it! On eBay, they already sell OLED watches but with no calculator of course.

When I get this image tank from Hongkong and the quality is right, I may contact the manufactures about deriving a calculator from it. Housing, battery, display, interfaces and processor (must be quite powerful since it handles disk, USB and memory card I/O as well as decompressing and displaying of images) are already there, all thats needed is a keyboard and a way of programming the thing.

Greetings, Max

#38

Quote:
This here (sorry for the link in German) is what I would like to see, a two line alphanumeric display:

Do you really want an 84mm wide display in your hand calculator? Power issues aside, I think that's a poor choice even for a horizontal (Voyager-like) calculator form factor.

#39

Quote:
2007/06/06: The 45s started here, actually the name was created by Karl Schneider in message #7, the first design labeled "45s" shows up in message #31;

For what it's worth, Gene and my "HP45S" was first created in February of 2006. It was named "45S" as a combination of the 15C and 42S, and originally was attempted to fit in a Voyager case.

[img:http://www.pahhc.org/2007/HP45S-5 v20 -4 V17.jpg]

The idea was to have a wide LCD with eight or ten soft keys and both are shown here. Richard Nelson got into the act soon after and suggested also attempting the same functionality in a Pioneer case, and the result was posted by Gene earlier.

Jake Schwartz


#40

Gotta hate spaces in filenames!

#41

Mmmmm-mmmmmM!

I like this thread!

May I interject? (at the possibility of derailing it)

DaveJ currently HAS a working LCD, CPU, keyboard...

and we've seen, (and some lucky ones have(!) (or touched)) the
DIY calcs of the recent HPCC.

What would it take for DaveJ's prototype to be "un-smooshed"
into the 45 form factor?
(Or for the DIY calcs) to be produced as a kit?

Yes, I am sure "WE" will never reach a consensus on the keyboard
(unless a dictatorial project head says something like, "it will
have the exact layout/functions/size/colors/bla-bla-bla of the original 45")!

It looks to me like the pneumatic tire, steel rim, inflation valve, lugnuts, hubcap, and axle bearings have already been invented...

LET'S NOT RE-INVENT THE WHEEL!

What will it take?
A decent (er...excellent) keyswitch!

As recent threads have shown, prototype cases (and keytops) have
been built using CAD/CAM (Santa Claus) machinery.

The molds (moulds?) for the plastic injection parts (case, keytops)
will be high cost items if we want the calculator to look less than
uh.... how shall I say it? ..."prototypical".

But then again, for a small run, it might be just as economical to make the cases out of hand carved mahogany, teak, bubinga, ebony...

B^)

Ren

dona nobis pacem


#42

Quote:
DaveJ currently HAS a working LCD, CPU, keyboard...

and we've seen, (and some lucky ones have(!) (or touched)) the
DIY calcs of the recent HPCC.

What would it take for DaveJ's prototype to be "un-smooshed"
into the 45 form factor?
(Or for the DIY calcs) to be produced as a kit?


From the electronics side, not much at all, just an new PCB.
But the electronics side of a calculator is and has always been trivially easy. The hardware part is actually figuring out the mounting arrangement with the case and keys.

Quote:
What will it take?
A decent (er...excellent) keyswitch!

As recent threads have shown, prototype cases (and keytops) have
been built using CAD/CAM (Santa Claus) machinery.

The molds (moulds?) for the plastic injection parts (case, keytops)
will be high cost items if we want the calculator to look less than
uh.... how shall I say it? ..."prototypical".

But then again, for a small run, it might be just as economical to make the cases out of hand carved mahogany, teak, bubinga, ebony...


Hasn't Eric already done it all with the DIY-3 ?:

I don't know how good the keys work though.

Also, if you don't like Eric's "clone" firmware, then simply write your own. I believe he uses a PIC 18 series micro? (my watch is a PIC24F series micro)

If you want a "professional" looking calc, then I think it's worth at least investigating retro-fitting a 12C/17BII+ with new electronics.

Dave.


Edited: 1 Nov 2007, 5:31 p.m.


#43

I don't know what plans Eric has for the DIY3, but perhaps he can share some details of how well it works from a point of view of the keys, LCD (what model?), PCB fit etc. Also, how much it cost to prototype the case, and how much it would cost to get say a dozen cases made in a less DIY looking colour like black?

Dave.


#44

The full case (two halves and 40 keys) costs about $70. Volume production is not likely to reduce this much; if I bought my own FDM machine ($20K), the per-unit materials cost would still be around $30, because it is not possible to refill the material cartridges. (It's just like the inkjet printer cartridge racket.) FDM is great for prototyping but is just not suitable for production of inexpensive consumer goods.

I do have an earlier, much less refined case design made in black ABS, and the color is definitely better. Note that my camera did a terrible job with the photos of the white case. I'll have to get a better camera to get some photos that look more like the real thing.


#45

Quote:
Note that my camera did a terrible job with the photos of the white case. I'll have to get a better camera to get some photos that look more like the real thing.


Don't buy a new camera, just white balance it properly. Switch it to the appropriate light source or do a manual white balance with a white sheet of paper (see the manual for details) ;-)

Photoshop or Gimp would also be an option...


Edited: 3 Nov 2007, 1:12 a.m.


#46

That was what the camera did with reasonably good direct illumination from a 26W CFL about 0.5m from the subject. The camera does offer manual white balance, but it used to do a much better job than this on auto. The autofocus no longer works properly either, after a friend dropped the camera, and the manual focus control is atrocious -- I need two hands to operate the manual focus, and a third to hold the camera (since it's not always convenient to use a tripod).

It's time for a new camera.

#47

DaveJ,

Thanks for letting me know the processor you're using. I was curious about that.

So you've helped make the point I was trying to convey...


We have a lot of individual and group contributions in designing
a new calculator. (i.e. hardware, cases, key layout)
we (this forum) just need to round up all those mavericks and put our brand on 'em!

YeeHaw!

Ren

dona nobis pacem

#48

Quote:
If you want a "professional" looking calc, then I think it's worth at least investigating retro-fitting a 12C/17BII+ with new electronics.

What about a 35S with new electronics? The case has more room, and it is a less costly box than the other two.

sdb


#49

Quote:


What about a 35S with new electronics? The case has more room, and it is a less costly box than the other two.


I don't have a 35S to be able to tell you, but from seeing some inside shots it looked possible. The LCD however looked a bit difficult to re-attach to a new PCB.

Dave.

#50

Quote:
I don't know how good the keys work though.

They're tact switches. With the laser-cut case, the top of the actuator protrudes slightly through a hole, and is just under the photo paper overlay. This works amazingly well.

With the FDM case, they have press-fit buttons. They work pretty well except for two things:

  1. The button has too tight a fit on the switch shaft, so more force is needed to seat the button than is desirable. I think this has damaged the switches slightly, as they seem to have less consistent actuation force after assembly. I'm fairly sure that my latest button design will fix this problem, but I haven't had any fabricated yet.
  2. On the current units, there is only one tact switch for the ENTER key, in the middle. If you press the left or right side of the ENTER key it doesn't work well. We plan to try using two tact switches, which should fix that problem but we're not sure whether that will make the ENTER key feel like it needs too much force to actuate.

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