This posting does not relate to HP calculators, but I know that some people here also use Calculated Industries products, and they may find this of interest.
For some time I have been meaning to get a Calculated Industries "HeavyCalc", model 4315. This is a specialized construction calc designed for excavation problems. I finally ordered one online from the CI website last week, along with an "Armadillo" hard case.
Then I had a call from a CI rep. She told me that model 4315 had been discontinued, and that they would be sending a new upgraded "HeavyCalc", model 4320, instead. She also indicated that the new model had an integrated hard case, and that I didn't need the "Armadillo" case.
The 4320 came today. It seems to have the same functions as the old 4315, but the case is completely redesigned.
The 4320 has a hinged front cover that locks over the keyboard, but which can also swing completely behind the back of the calculator when it is open. The front cover has a "Quick Reference Guide" attached to a label on the inside.
There is also a locking cover on the back side of the calculator. The back cover conceals a small compartment which holds the manual and battery. The manual is 50 pages long and seems reasonably comprehensive; two editions are included, in English and Spanish. When both front and back covers are closed, the calculator fits comfortably in a shirt pocket.
Model 4320 must be brand new, because the CI website (as well as the catalog that came in the shipment) still show old model 4315. I don't know if other CI construction calculators will be getting this new case as well, but it wouldn't surprise me. Possibly the old-style CI construction calcs are about to become collector's items.
My overall impression is that CI put some real thought into the redesign of the "HeavyCalc", and that the new design is an unqualified improvement over its predecessor. I wish that I could say the same about my HP-33S.
Edited: 23 Aug 2004, 5:36 p.m.