Guys,
All was working well on my 3 axis mill until I decided to try and be clever and add a 4th axis.
I have it all working again but for some reason I seem to be picking up noise on my limit switch signals.
I only have limit switches on the X,Y & Z axis.
I have connected them to +5v via a resistor as shown in the MACH3 manual.
They are using shielded cables.
I have a capacitor across each input.
I have had to raise the debounce level to 2500 in the config page to even run a program and it still keeps tripping the limits every now and again.
I noticed that others have reported problems with the flexible keyboards and will try a different keyboard but would like to find a way to measure the noise if I can.
I don't have a scope to test the wires with, is there any other way I can track down/measure the problem?
Thanks
Simon