Re: Open Source Key Machine
The Silca Unocode uses an electrical contact between the key blade and the cutter wheel to zero the depth.
You might be able to use something similar on your device. Get the key blank to move in the y direction toward the cutter so that it contacts the cutter at about halfway the lenght of the key blank , untill you get electrical contact (depth zero point) and then withdraw it about 0.1mm , and move the key in the x direction untill the shoulder touches the cutter (Spacing zero point).
Then cut the key to the specified bitting.
* hope that makes sense*
"I'm the locksmith , and i'm a locksmith"