Hi all,
I have just spent a very frustrating month chasing an intermittent Estop/limit problem. (after a machine rewire). Mach3 would stop at anytime during executing a cut file. I have tried everything known to mankind to try and fix the fault. Each time it occurred, the diagnostic screen did not indicate that a limit or estop had occurred. But the machine still stopped! Checked wiring, removed all plug in connectors in the limits and estops and soldered the connections, checked Power Supplies, checked shielding, checked vibration of switches, checked earthing, checked usb cable between Smooth Stepper and PC,
changed inputs to Port 2, checked dongle, checked all connections for power and earthing, changed to another PC, checked earthing of dust extraction, checked if i was still sane? whilst configing the new PC I noticed 2 little check boxes in the top right hand corner of the general config screen. "Input signal debounc/noise rejection" I put a 2 in each box and voila' the machine didn't stop!!!
I don't no where the noise is coming from but having to wait 80 microseconds for a limit or an estop seems like a fair compromise?
Hope this might help someone keep some of their hair from turning grey.
Merry Christmas
Bruce