Spindle Control on 6HC

Xamation

Hello everybody,
i can't drive a spindle with a duet 3D 6HC
I used a frequency-voltage converter card on output Out9 (Laser / VFD) but I can't detect any PWM signal.
the config file is the following:

; Configuration file for Duet 3 (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Fri Dec 17 2021 15:27:41 GMT+0100 (Ora standard dell’Europa centrale)

; General preferences
M575 P1 S1 B57600                       ; enable support for PanelDue
G90                                     ; send absolute coordinates...
M453                           			; CNC Mode 
M83                                    ; ...but relative extruder moves
M550 P"XAM-CNC01"                      	; set printer name
M929 P"logEventi.txt" S1


; Network
M552 P192.0.0.47 S1                     ; enable network and acquire dynamic address via DHCP
M553 P255.255.255.0						; set netmask				
M554 P192.0.0.1							; set gateway
M586 P0 S1                              ; enable HTTP
M586 P1 S0                              ; disable FTP
M586 P2 S0                              ; disable Telnet

; Drives

M569 P0.0 S1                            ; physical drive 0.0 goes forwards
M569 P0.1 S1                            ; physical drive 0.1 goes forwards
M569 P0.2 S1                            ; physical drive 0.2 goes forwards
M584 X0.0 Y0.1 Z0.2 P3            		; set drive mapping

M350 X16 Y16 Z16 I1		                ; configure microstepping with interpolation
M92 X640.00 Y640.00 Z640.00 E420.00     ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00     ; set maximum instantaneous speed changes (mm/min)
M203 X600.00 Y6000.00 Z180.00 E1200.00  ; set maximum speeds (mm/min)
M201 X50.00 Y50.00 Z20.00 E250.00       ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30            ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                        ; set axis minima
M208 X395 Y600 Z70 S0                   ; set axis maxima

; Endstops
M574 X1 S1 P"!io1.in" 					; configure active-low endstop for low end on X via pin io0.in
M574 Y1 S1 P"!io2.in"					; configure active-low endstop for low end on Y via pin io1.in
M574 Z1 S1 P"!io3.in" 					; configure active-low endstop for low end on Z via pin io3.in

; Z-Probe
M558 P0 H5 F120 T6000                   ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20                ; define mesh grid

; Heaters

; Fans

; Inserito ultimamente

; Tools
M563 P0 F0								; define tool 0
G10 P0 X0 Y0 U0 Z0						; set tool 0 axis offset
G10 P0 R0 S0							; set initial tool 0 active and standby temperature to 0C

; CNC

M950 F8 C"nil"							; free up fan out 8
M950 F7 C"nil"							; free up fan out 7
M950 R0 C"OUT9+!io4.out+out7" L24000   ; configure CNC mode and set PWM+ON/FWD+REV R set max spindle RPM	

G54
M564 S H0
M575 P1 S1 B57600

the sequence of operations I do is as follows:
I turn on the device;
I connect to the Duet IP address;
I make the zero point of all the axes;
I set the RPM of the Spindle 0 to 10000
I try to send and press the OFF key corresponding to Active but nothing happens

Thanks to those who can help me
Angelo

dc42

@xamation you need to declare the spindle using M950 before you create the tool, then when you create the tool using M563 include the R spindle number parameter. After selecting the tool using T0 you should be able to control the spindle.

Xamation

@dc42 Hi,
I updated the code so you suggested me.
The config file is updated with the M950 and then M563 commands.
Everything still doesn't work. I also changed the string M568 P0 F0 with
M568 P0 F1000 but it does not go.

; CNC Mode (Firmware 3.3)
M453         										; CNC Mode 

;Configure Tool 0 as the CNC Spindle
M950 R0 C"OUT9+!io4.out+out7" Q2000 L0:25400	 	; Create spindle index 0, PWM frequency 2KHz, max rpm = 25.4K ( tweaked to yield 24K) 
												   	; and the following connections:
													; 	spindle speed PWM pin	: exp.9 pin
                                                    ;	spindle run pin 		: exp.4
                                                    ;	spindle direction pin 	: exp.7
M563 P0 R0 S"Spindle"                              	; Create Tool 0 with Spindle 0 and call it Spindle 
G10  P0 X0 Y0 Z0                                    ; Set Tool 0 axis offsets
M568 P0 F0										; Set Tool 0 to default RPM of 0
T0													; Select Tool 0


G54
M564 S H0
M575 P1 S1 B57600

Where am I wrong?

Phaedrux

@xamation said in Spindle Control on 6HC:

Where am I wrong?

Can you send M98 P"config.g" to check the syntax?

Xamation

@phaedrux @phaedrux in the config file I have not entered any M98 command.
To activate the spindle, after turning on the machine, I make the zero point of all the axes (X,Y,Z) and send the command M3 P0 S1000 through the web interface

jay_s_uk

@xamation this is my spindle section from my config.

M453 
M950 R0 C"e0heat+e1heat+e2heat" Q100 L6000:24000				; CNC mode and spindle settings

; Tools
M563 P0 R0 S"Spindle"                              				; define tool 0

and i can control the spindle ok using M3 etc.
sending m3 s6000 turns the spindle on at 6000 RPM.

Phaedrux

@xamation said in Spindle Control on 6HC:

in the config file I have not entered any M98 command.

You misunderstand me. What I want you to do is send M98 P"config.g" in the gcode console in DWC and copy and paste the response you get here so we can see if there are any syntax errors in your config.

Xamation

@phaedrux I solved the promise. I installed the update to version 3.4 and it seems to work. I updated some commands but it reports the error: Error: bad drive number

Phaedrux

@xamation said in Spindle Control on 6HC:

. I updated some commands but it reports the error: Error: bad drive number

Can you be more specific? Show us what you changed.

Nightowl

Hi @xamation,

Would you be kind enough to explain why you have three pin names in the M950 line for the spindle like this so I can understand why, please
M950 R0 C"e0heat+e1heat+e2heat" Q100 L6000:24000

I'm very new to 'programming' the Duet3, but I'm wondering if this (which I haven't tested yet because my milling motor hasn't arrived) will work:

; AMB spindle configuration
M950 R0 C"out9" L0:25000 Q1000 ; create spindle with index 0
M563 P1 S"Spindle 1" R0 ; create tool 1 with spindle 0 and name it "Spindle 1"
M453 ; set machine to CNC mode
T1 ; select tool 1
M3 S0
M5 ; stop spindle

Thank you.

jay_s_uk

@nightowl999 the first pin sets the speed using PWM, second one sets the spindle to forward, 3rd one sets the spindle to reverse

Nightowl

Thanks, @jay_s_uk.

OK, so I'm guessing (assuming everything's configured correctly) the g-code file sends an M3 S2000 command, for example, and the first configured pinout would signal that to the spindle to turn on and run at 2000rpm.

I don't envisage (!) ever using the spindle to rotate in any direction other than its default rotational direction, so I shouldn't need to use the other two pinouts, should I?

jay_s_uk

@nightowl999 the second pin enables the spindle

Nightowl

@jay_s_uk Got it, thanks.