Hi,
I just finished my first cnc (built on mdf and plywood) and for the first time in two years since I bought my gshield board I get to connect the motors to the gshield and watching spin with G-code commands.
The issue comes with the Z chip. I have all the settings for Y & Z axis identical to each other (acceleration, steps/mm, etc) But the Z chip gets really hot while the X and Y are very cool.
The Z chip is the only one I have it a heatsink on but still gets hot. I supposed that it was the hardware friction the problem so I swap the cables and connected the Z-axis motor to the Y chip and the Y-axis motor to the Z-chip and still the Z-chip is the one heating up. So that discard any problem outside the gshield.
The pot was adjusted using the same procedure for all axis.
So, if the friction is not the problem, and the current limit is not, and to my u nderstanding the settings values are the same for Y and Z (X uses different leadscrew, so $100 is different) I am suspecting that the Z-chip, or part of the hardware involved with it is defective.
I am a newbie so there are high chances that I am wrong.
What do you think? Do you have a suggestion?
Thank you very much,
Andres
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