Hi,

Just got my Duet 2 Wifi (Firmware: 3.2.2) and getting am just everything setup to replace the GRBL control board in a small generic 3018 CNC until I can build a new machine.

I have one of these spindle motors: (https://www.amazon.co.uk/Genmitsu-GS-775M-20000RPM-Suppression-Electrical/dp/B08DTHDSMV/ref=sr_1_3?dchild=1&keywords=775+cnc+spindle&qid=1622126186&sr=8-3), before it was just directly connected to the control board.

Before I connect it all up I was just wondering if anyone could confirm that I will be able to do the same by simply connecting it to the bed heater output and controlling the speed with the PWM setting using the following code from the configuration file:

; Heaters
M140 H-1                        ; disable heated bed (overrides default heater mapping)

; Tools
M563 P0 S"Spindle"                   ; define tool 0

; CNC Mode and Spindle Settings
M453 C"bedheat" T0 R20000

Thank you,

Tim