Centroid Community CNC Support Forum

Because that's exactly what it's designed to do. CNC12 changes the DAC output based on the gear ratio. The spindle encoder reads the SPINDLE speed and therefore should never need any gear ratio applied to it. It also does not, and SHOULD not, need to be "reversed" by a negative gear ratio....

Spindle speed encoder output is supposed to be the actual spindle speed and does not get changed by the back gear ratio. As Keith pointed out earlier, if you have a Bridgeport style milling head and you attached the encoder to the top of the spindle, then you are not reading the actual spindle speed...

All Centroid licenses are bound to the Centroid controller, not the PC. You can change PCs, and PC components, as often as you want.

My personal preference - silicone waterproof with a track pad and full numeric keypad

https://www.wetkeys.com/Touchpad-Plus-W ... 06t-bk.htm

@PhilipTrueman, you should start your own thread instead of hijacking someone else's. From the manual: 13.21 M41, M42, M43 - Select Spindle Gear Range (Macros) M41, M42, and M43 have no default actions, and therefore custom macros must be defined for these M codes in order to make this feature work....

Increase the feedrate or the depth of cut to make chips break.

Well, since you posted in the Centroid CNC forum, you are halfway to a solution. The next part of the fix is here: https://centroidcnc.com/

Could be a bad encoder. Could be a slipping coupling. Could be a bad electrical connection. Could be a bad power supply. Could be a bad encoder port.

Or, you can switch to an Acorn6 that has multiple encoder inputs.

You'll have to set your Ethernet adapter fixed IP address as well.