Hi Guys,
I've owned a Chinese X61500GT for a couple of years now. Using a licensed copy of Mach 3, and AKZ250 USB BOB that came with it.
Today I noticed that when I input G code to start the spindle, ie M3 S5000, the spindle starts ok but is going ALOT faster than 5000 RPM.
If I do the same for 24000 RPM, the spindle is spinning ALOT slower than 24000 RPM, so the commands appear to be 'reversed'. How is this even possible?
I have no idea if the speeds are correct when cutting jobs as I don't have a tacho on the spindle yet?
I don't recall changing anything that may cause this and it was ok when I commissioned the Router, when I first got it.
I am using external pots to vary spindle speed and feed, so I can adjust during a run. They have always worked ok. I did have to solder another connector to the board as it onlt came with one, but that went without issues....
Does anyone have a any inkling as to what 'setting' maybe causing this?
Steve