Hi
I am running my Sherline mill with a G540 driver and apart from occassional false e-stops everything is great.
False E-stops are becoming more frequent though. This is my only frustration with this set up.
Limit stop wires are in the same cable as the stepper motor wires and no screening so this is an area for immeadiate improvement.
I ran a 3 hour g-code without the spindle running and no problems, the same g-code with the spindle running gave several false e-stops, (strangely occasionally at the same g code lline!).
Not being knowledgable about such things it would seem the motor and/or it's controller are causing noise problems. (It's a DC motor with brushes)
I was wondering if I wramp the cables in alumimium foil or tape and earth this is it suitable screening? (I will re-route the limit switch wires separate from the motor wires)
Also I was wondering, if I were to put the controller in a Faraday cage, would it help? Anyone done anything like this? or is it just silly?
I would think a Faraday cage could be made from steel mesh and earthed. I know Faraday cages are used in high voltage areas to protect equipment, not sure if it's applicable here.
Additional info if applicable:
Power supply and G540 are in an enclosure together with an e-stop switch and cableing- there is no other E stop switch.
Enclosure with controller is within 2 to 3 ft of the mill.
Any comments appreciated.
Cheers
Nigel