18 years ago
I have recently been in touch with a fellow by the name of Jack
Christensen, who is the preeminent repair person for the Curta
calculator in the US. He describes his activity as a hobby that
has gone out of control... sound familiar? He may be singularly
responsible for keeping these wonderful machines alive.
The Curta calculator looks like a pepper grinder, and is a marvel of
mechanical engineering and design. It was last manufactured in the
late 60's, and was sold commercially as late as 1972 when electronic
calculators finally killed their sales. Vintage car rally
participants use them, as they are allowed by their rules.
I have taken a fancy to these devices, and have offered to help Jack
re-create some of the critical parts that have been breaking, and are
unavailable for repair.
We are going to be making these critical parts to look as close to
the original as possible, but to be much stronger using modern
materials and methods. The replacement parts will be designed in 3D
in SolidWorks and stress analysis will be done using a package called
COSMOS. I would be happy to share the details.
Do you know anyone that may have a Curta, working or broken, that they
are willing to part with?
Please spread the word and let me know.
I can be reached at email@example.com.