Originally Posted by
w102acd
BobF,
I like that method for the limit switch. I didn't realize Mach had limits on it also. I assume they are software limits. Meaning if the machine were to get lost (missteps, bad home, etc) the machine could still try to drive an axis too far and could potentially destroy the machine. The limit switches done the way you have them will save people like me from destroying their machine.
I have seen that one can limit the current allowed to go to the motors. Is this true for each axis??? I basically have a moving gantry style router (probably the typical type design). If all three motors are the same size, should one limit the current (and thus the torque) to the different axis. Obviously, the x-axis has to move the most weight and should thus have the most current. I suppose the z-axis could also be relatively high due to the wieght of the spindle. However, the y-axis should move with the least resistance so should it have less torque put to it in order to acheive the same cutting force as the other axes.
Thanks,
w102acd