@uneumann36 it would also work with a duet board.
The firmware is the same

@phaedrux on the right side of the Status screen the visibility can be changed,
in the Dashboard Bar (like the Screenshot i made) it's still visible.
Good to know that's something in progress.

@sarvan
Usually the barrel jack connector is the power In plug for the laser and fans etc...
The 12V pin on the PWM connector can be used to feed external devices from the same PSU or just use a potmeter to control laser power.

For you it means you could feed the Duet with a 12V supply and use a heater output to feed the laser thru the barrel jack. An emergency button and keylock switch between Duet and Laser can save your eyesight or your childrens health.
The PWM port can be connected as I described in another thread. ( same way as your picture shows)

Have you seen this?

https://duet3d.dozuki.com/Wiki/Laser_PWM_control

@alankilian
Thanks its working now. is there a better way to do this ?

@mr-yod said in Laser that worked in the past and should work, but doesn't:

@o_lampe Nope: still with 2.05

Maybe when it worked I used a previous version of RRF, but I'm not sure.

Disclaimer: I know that I upgraded from a previous version to the 2.05, what I'm not sure about is if I used or not the laser after the firmware upgrade. 😃

@phaedrux it seems to be working like a charm. Was only able to try it once, but it worked so far. Using out7 to give 12V when virtual extruder is active. There was some error messages regarding "Driver0", but I had no time yet to get further into it.

Thanks again for your fast help!

@sindarius @jay_s_uk

I grab the latest from here:
https://github.com/Duet3D/DWC-CNC/releases

Awesome!

You dit a great job!

@dc42 many thank's!

I add this line in my config.g

; Set Cartesian type and segment interval one second and length 3mm M669 K0 S1 T3

In the middle of a 200mm straight cut the pause will be done within the second and move set with M669

So this works and I will add this line to my CNC too, btw. I do not see any slowness in normal cut and engrave jobs too.

@dc42 The enable inputs can be set to accept high, low or any type of inputs up to 24v, so I don't think these are the problem. While troubleshooting I've set these to accept any but my plans was to use a spare pin and M42 command in the tool number for additional failsafe. The adapter seems to be very versatile and the manual suggests quite a few ways to set up.

That said I'm still having problems that feel like grounding issues with the heat terminals on the duex - I am using PWM-1 for the laser and E3-E6 to control LED lights through the deomon.g file.

I wired the ground from pin 4 on the CNC adapter to the laser PSU ground - separate from the stepper PSU. I had my signal go to inverted TTL from the Duet PWM 1 header. The controller turns on as normal, and if I press the red arm button and close the external switch (which I leave normally open at start-up because I use a key) the arm LED turns on but the Laser LED just flickers briefly on and turns off. What I've noticed also on the duet is E3 and E4 lights are on when only E4 should be on at start up. Those along with E5 and E6 for used for LED's which signal machine state. The LED for heater 2 does not turn on - it seems the pin is being pulled down or drained to ground - but if I open the external switch on the cnc adapter the LED for E2 lights up. The seems like like a ground issue.

In any case I have received some additional troubleshooting guidance from Opt Lasers which I will go over on the weekend to identify if it is the laser head or adapter.

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

@chimaeragh @FelixH Maybe someone with more knowledge than us could look at that test board and tell us if it is safe.
The test board has an IC roughly the same size as 74HCT02 underneath the 3 digit display, but I can not tell which one. I don't what to disassemble the board since it is working just great. 😌

mmm... I do not need such information. As I said, I made myself the Duet recommended board for using lasers and it works as advertised...

@keyz182 Thank you

@guanjian ; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.4 on Wed Aug 05 2020 10:37:58 GMT+0800 (中国标准时间)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"BLV" ; set printer name机器名字
M669 K1 ; select CoreXY mode机器模式

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S1 ; enable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards，X电机方向和位置
M569 P1 S0 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S0 ; physical drive 3 goes forwards，挤出机方向和位置
M584 X0 Y1 Z2:4 E3; two Z motors connected to driver outputs Z and E1，两个Z电机链接到Z和E1
M350 X128 Y128 Z128 E128 I0 ;不插值的细分
M92 X800.00 Y800.00 Z5120 E3075 ; set steps per mm，脉冲数值
M566 X720.00 Y720.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)，突变速度
M203 X6000 Y6000 Z120.00 E1200.00 ; set maximum speeds (mm/min)，最大速度
M201 X500.00 Y500.00 Z3.00 E250.00 ; set accelerations (mm/s^2)，加速度
M906 X1550 Y1500 Z1500 E800 I30 ; set motor currents (mA) and motor idle factor in per cent，电机电流
M84 S30 ; Set idle timeout，解锁等待
M572 D0 S0.4 ;挤出提前值/延迟值，远程挤出配置
; Axis Limits
M208 X-15 Y-30 Z0 S1 ; set axis minima
M208 X310 Y300 Z400 S0 ; set axis maxima
M671 X-20:220 Y0:0 S0.5 ; leadscrews at left (connected to Z) and right (connected to E1) of X axis

; Endstops
M574 X1 S1 P"!xstop" ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"!ystop" ; configure active-high endstop for low end on Y via pin ystop
;M574 Z1 S1 P"!zstop+!e1stop" ; configure active-high endstops for low end on Z via pins zstop and e1stop，双Z双限位配置
M574 Z1 S1 P"!zstop" ; configure active-high endstop for low end on Z via pin zstop
M591 P1 C"e0stop" S1 D0 ; filament monitor connected to E0 endstop,断料检测

; Z-Probe
;M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
;G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
;M558 P5 H5 I1 F120 T6000 ; set Z probe type to switch and the dive height + speeds
M557 X50:250 Y50:-300 S20 ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M501 ;PID校准保存

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 C"模型风扇" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 C"LED灯" S1 H-1 ; set fan 1 name and value. Thermostatic control is turned off
M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency
M106 P2 C"喉管风扇" S0.8 H-1 ; set fan 2 name and value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; 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

@g0rg I would do something like this: (This is not real, tested code)

var xCurrent = 0 var yCurrent = 0 var xCount = 10 var yCount = 10 var xIncrement = 250 var yIncrement = 250 while yCurrent < yCount set xCurrent = 0 ; Start a new row at x=0mm while xCurrent < xCount G1 X{xCurrent * xIncrement} Y{yCurrent * yIncrement} ; Move to the new logo location set a GPIO pin to start the LASER logo burning while GPIO is not true ; Wait for the LASER to finish set xCurrent = xCurrent + 1 ; Move to the new location in X set yCurrent = yCurrent + 1 ; Move to the new location in Y

@dc42 Thanks

@kevinsant said in TTL 12V Laser:

@ACSlater you ever figure it out?

yes !
check this for the answer:
https://forum.duet3d.com/topic/22637/diode-laser-installation-on-duet-2-workbee-cnc

@colten I'm glad everything is working well for you now.