What is the proper setting for the gShield X/Y/Z pots?
Is there a maximum setting of the pots?
Shouldn’t the gShield X/Y/Z pot adjustments be part of the assembly instructions?
No easy answers here. Depends on the stepper motors you have installed.
When my X-carve came the pots were set to limit the current to the stepper motors to 0.9 amps per phase. The maximum current per phase the gShield can deliver is theoretically 2.5 amps with “appropriate cooling”. You may be able to get “appropriate cooling” in the lab, but in the real world you’re not likely to get it. Certainly with the fan that comes with the X-carve you are not going to be able to get that much current.
The NEMA 17 (part #25253-01) can handle 1.68 amps per phase.
The NEMA 23 (part #25311-05) can handle 2.8 amps per phase.
Check this thread for information on setting the pots to a specific value.