MIMF

Dr Ike is very helpful. I exchanged messages with him when I was working on a similar project. Warning: Accordions look like a mechanical engineer's dream inside, but that doesn't mean you should lubricate them! That's your first impulse and you can't take it back. Don't do it. My bellows leaks, the...

Since you have all the keys, and all you need is a body, I'd consider using Pablo's method.

This is a very old post but maybe the OP checks occasionally. I wonder if piano tuning software would be a better choice. Tunelab is one of several electronic tuning devices (ETD)used by piano tuners. It is available as a free demonstration download. It measures frequency accurately but also calcula...

Ah, fair enough! I'll rephrase then. Square bore instruments need walls with a higher rigidity than round bore instruments. This may not mean thicker walls, since laminated board can be used, as you say. :P I think that you are correct. But. I also suspect that it is all but impossible to make a wo...