Best posts made by radiomodell

@mintytrebor You are fast! I will try new version of plugin tomorrow.

Here is my actual status that still needs some fine tuning.

I really like the flexibility given by the plugin.

Here is a piece of software as DC42 suggested. Thanks! An Arduino Nano is connected to the Panel-Due serial interface. Hidden in a box it works to move the tool head of my CNC-Mill controlled by Duet2 Ethernet.

Arduino is 5 V, Duet2 interface is 3.3V. Serial connection is done via 3,3 V to 5 V level shifter!
This line is added to my config.g : M575 P1 B57600 S0 to set communication without CRC check.

Push button for directions, continuous move(Fortl.), homing and a switch to start jog mode in general are connected to the input pins of Arduino.

Pushing a "direction button" moves the head a step with the configured distance. Pressing the "Fortl.(Continuous)" button simultaneous with a "direction button" moves the tool head continuously as long as both buttons are down.
A "Home" button does the expected job.
Values for distance, feed rate and timers can be modified to match software to your machine.
A limitation at my machine: Continuous moves are singel steps fired continuously by Arduino. First steps fired are slowed down at the end a little bit until enough commands are buffered. Movement sounds a bit strange.

I transferred this code is to Arduino via "B4R" form Anywhere Software. Download of B4R is free.

B4RNanoJog.b4r.txt
B4R needs extension ".B4R". Please remove extension ".TXT" from filname.

Enjoy.

Hermann

@FelixH said in NEJE-like Laser as CNC upgrade:

• If I understand that correctly, the laser I ordered accepts 3v3 PWM signals, so I do not know if I need to prepare a breakout board as the one described there.

I use my Duet2 Ethernet running Firmware Version 3 without breakout board to control same laser as you ordered. The Laser needs 12V Power supply continuously and Laser beam is controlled by PWM-signal.

Heater 3 pin controls Spindel- and Laser Power. Heater 6 pin is output of Laser PWM signal.

This is my code to switch to laser mode:

; Configuration file for Duet Ethernet (firmware version 3.1.1)
; executed at Startup of Laser mode
;
;
G54                                    ; 1. Koordinatensystem anwählen
M208 X550 Y1200 Z230 S0                ; Set axis maximum
;
M453 C"nil"                            ; CNC-Modus Pin für Spindel abwählen 
M950 P0 C"exp.heater3"                 ; M42 P0 S255 schaltet Laser Spannungsversorgung ein, M42 P0 S0 schaltet aus
M42 P0 S0			       ; Laser Power Ausschalten	
M452 C"exp.heater6" R500 S1 Q20000     ; laser uses heater3 pin,  PWM frequency 100Hz;
;
; Tools
M140 H-1                        ; Heizbett aus
M563 P0 D-1 H-1                 ; Tool0 abwählen
M563 P1 D-1 H-1                 ; Tool1 abwählen

M563 P0 S"Laser"                ; Define tool 0
G10 P0 X-7 Y-45 Z-68.5          ; Set tool 0 axis offsets vs. Headposition  -68.5 Z-Achse Nullpunkt (Laser Fokus)
T0
M42 P0 S0			;Laserpower aus nach Werkzeuganwahl.

This code switches to CNC-Mode

; Configuration file for Duet Ethernet (firmware version 3.1.1)
; executed at start-up of CNC mode
;
;
G54    ; 1. Koordinatensystem anwählen
M950 P0 C"nil"       ; falls Laser-Modus Aktiv war, Pin freigeben

M453 C"exp.heater3" R500  ; spindle forward on heater 3 pin, R=Max Spindeldredzahl

; Tools
;M140  S-274               ; Heizbett aus
M140 H-1                   ; Heizbett aus
M563 P0 D-1 H-1           ; Tool 0 abwählen
M563 P1 D-1 H-1           ; Tool 1 abwählen

M563 P0 S"Spindel"        ; Define tool 0
G10 P0 X0 Y0 Z0           ; Set tool 0 axis offsets vs. Headposition

M208 X550 Y1200 Z230 S0   ; Set axis maxima

Switching between modes I have to redefine Heater 3 pin.

G-code at beginning of work file is:

G90
T0
M42 P0 S255   ; switches Laser Power on
G04 2000      ; wait until Laser power is stabilised
M05
G55

trailing code is:

M05
G04 3000
T-1
M42 P0 S0
G54
G0 X5 Y5 Z220

@felixh This is my code for testing laser with 1% power. No need to switch to LASER mode. Just directly control pins. Maybe this code helps for testing.

M950 P3 C"nil"                ; free P3 
M950 P3 C"exp.heater3" Q200   ; Laser control to P3
M42 P3 S0                     ; laser control off
M106 P2 S255
G04 P1000                     ; Breake stabilizing laser power supply
M42 P3 S0.01                 ; Laser on with 1% power


G04 P3000                      ; wait 3 seconds, then

M42 P3 S0                      ; turn off laser control and power supply
M106 P2 S0			          

Here are my commands -with my pin configuration- to switch to laser mode:

M950 R0 C"nil"                         ; free R0, coming fron CMC-Mode, not working properly in the moment
M950 P0 C"exp.heater3"                 ; M42 P0 S255 Laser Power Supply on, M42 P0 S0 Laser Power off
M42 P0 S0			                   ; Laser Power Ausschalten	
M452 C"exp.heater6" R255 S0 F20000     ; laser uses heater6 pin for control, 255 is max power in M3 SXXX command, not sticky,  PWM frequency 20kHz;

Laser power is switched on in Gcode job file.