On 4/7/2010 5:59 PM, Slavko Kocjancic wrote:
Hello... I just wonder how to measure if stepper lost steps and come to idea to use home switch. But I have no idea how to implement this. The idea is simple: 1'st home the machine 2'nd make test moves 3'rd rehome machine In rehoming the EMC just need to read position before setting new home position as is dictated in ini file. and the difference is measure of lost steps... or accuracy problems.
I would connect the home input to the probe input.Home first, then do some moves, then do a probe towards zero, and look at the point where the probe (home switch ) tripped.
Note: you might have to have this connection inactive during homing (maybe it complains that the probe has been hit without a probing move..). You can achieve that in various ways (either an and2 with a digital output set by M5x or simply connect the home switch with the probe after you did the homing, etc).
Regards, Alex
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