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I had the same problem that I discovered when I ran the spindle speed up to mill some brass. I know this is an old thread but for what it's worth I shielded the spindle motor cable with no...

Thanks for your response. After I posted here I found a site that discussed noise issues with VF controls. Apparently they are well known for interfering with CNC controls. They advised shielding...

I have run into a tricky problem. I have had a homemade CNC mill, made from a drill press, for several years. I use a PC with TurboCNC software driving a much modified Chinese Stepper controller...

I am sorry I don't follow this site closely and didn't see your question. You probably have it figured out by now but you are on the right track. I also removed the 74HC14's and I jumpered from the...

I have used a Chinese TB6560 control board for about 3 years. I made all the fixes in one form or another and the board performed fairly well except when I was running very long programs for etching...

I found CNCSimulator along with the tutorial from Magnitude Engineering to be a good way to learn the basics of Gcode programming but this petrol file nonsence that CNCSImulator puts you through is...

According to the TB6560 spec sheet the current at 100% is 0.5/Resitance. For 0.22 resistors this is .5/.22 = 2.27 amps.

I am new to this as well and I also get the Tool File missing message. I think it is because we have not set up a tool file yet. I am trying to figure out how to do that right now.

As far as...