Spindle Control

[p8blr]

I've got a 6XD on an Indymill and for some reason I can't seem to get control of my spindle. I can send it an M4 command in the terminal and that works, but when I post a program in Fusion 360 it never creates a M4. Any ideas? Maybe I'm using the wrong post processor? I screenshotted the ones I've tried so far. Thanks in advance.

here's my Config.g

; Configuration file for Duet 3 MB 6XD (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sat Mar 18 2023 15:44:49 GMT-0500 (Central Daylight Time)

; General preferences
M575 P1 S1 B57600                ; enable support for PanelDue
G90                              ; send absolute coordinates...
M83                              ; ...but relative extruder moves
M550 P"Indymill"                 ; set printer name
M453							 ; set cnc mode

; Network
M552 P0.0.0.0 S1                 ; enable network and acquire dynamic address via DHCP
M586 P0 S1                       ; enable HTTP
M586 P1 S0                       ; disable FTP
M586 P2 S0                       ; disable Telnet

; Drives
M569 P0.0 S0                     ; physical drive 0.0 goes forwards
M569 P0.1 S0                     ; physical drive 0.1 goes forwards
M569 P0.2 S0                     ; physical drive 0.2 goes forwards
M569 P0.3 S0                     ; physical drive 0.3 goes forwards
M584 X0.0 Y0.1:0.2 Z0.3          ; set drive mapping
M92 X640.00 Y640.00 Z1600.00     ; set steps per mm
M566 X900.00 Y900.00 Z60.00      ; set maximum instantaneous speed changes (mm/min)
M203 X3000.00 Y3000.00 Z1200.00  ; set maximum speeds (mm/min)
M201 X80.00 Y80.00 Z80.00        ; set accelerations (mm/s^2)
M906 X800 Y800 Z800              ; set motor currents (mA)
M84 S0                           ; Disable motor idle current reduction

; Axis Limits
M208 X0 Y0 Z-5 S1                 ; set axis minima
M208 X440 Y480 Z90 S0           ; set axis maxima

; Endstops
M574 X1 S1 P"io1.in"             ; configure switch-type (e.g. microswitch) endstop for low end on X via pin io1.in
M574 Y1 S1 P"io2.in"             ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin io2.in
M574 Z2 S1 P"io4.in"             ; configure switch-type (e.g. microswitch) endstop for high end on Z via pin io4.in

; Z-Probe
M558 P8 C"!io5.in" H5 F120 T6000 ; set Z probe type to switch and the dive height + speeds
G31 P500 X0 Y0 Z12               ; set Z probe trigger value, offset and trigger height
M557 X15:215 Y15:195 S20         ; define mesh grid

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

; Fans
M950 R0 C"out3" Q500             ; create spindle 0 on pin out3 and set its frequency

; Tools
M563 P0 R0                       ; define tool 0
G10 P0 X0 Y0 Z0                  ; set tool 0 axis offsets
G10 P0 R0 S0                     ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined

T0 								 ; Set active tool