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Topics - MiguelAngel

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General Mach Discussion / MDI and on-screen data do not match
« on: May 09, 2019, 11:01:27 AM »
Hello, my name is Miguel Angel AmorĂ³s, and I want to ask you a question.
I have mach3 and it is working perfectly with milling and laser, I use the M11P system with a virtual axis "B" and it is a marvel.
but I want to take pictures with the Picengrave program, I have already made the hardware with the digital potentiometer MAX, but there is a problem that keeps me from buying the program, and I can not consult it in the picengrave forum because it seems that if you do not buy you can not enter .
I work in millimeters, I have 200 step motors, direct ball screw with pitch of 5 mm, and steps per pulse 320 and the problem is as follows:
in picengrave they say that I have to put on the Z axis 393.7 steps per millimeter, fine, but to calibrate the digital potentiometer I have to put in MDI G0 Z-0.3238, and Z-0.3226 appears on the screen, it seems a minor thing, but it causes the digital potentiometer to go out of range and then the photo burns.
Why does not the same figure appear on the screen when putting a figure in MDI?
and how can this be solved?

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