Posts made by sarvan

I have tried manual connections as well. it doesn't work. Any other suggestions @T3P3Tony ?

@t3p3tony No luck on either way. i have tried those steps you have mentioned.
I have checked connections continuity. everything is fine.
Bu, i have a doubt. once if i configure a heater pin say exp.heater3 and i checked the voltage it shows 0v. but, not configured exp. heater pins shows 3.some volts. it this normal?

I have only the laser config files in my duet. when I switch on the duet . the laser starts to firing.
When in CNC/LASER mode- not firing in CNC mode. if I switch to laser mode it starts to firing.(and if i switch back to CNC mode also still the laser is firing)

and I have checked the voltage coming through the pwm port from the duet pwm board it shows 7.2V.

so, I am going to buy a connecter type 74hct0-https://www.tandyonline.com/74hct02-quad-2-input-nor-gate.html to try out wiring manually.

@t3p3tony Thanks. let me try these step and check

@t3p3tony here my connection to the duet from pwm board

When I switch to laser mode, the laser firing could not turn off by any code (M5). then again if go switch to CNC mode also laser is still firing and could not turn off.

if I unplugged the Pin-8. the laser is not firing.

@sarvan let me take some more clear pics and infos tomorrow

@t3p3tony pin 8 connected to duet laser pwm board

@sarvanin this board also the same thing. Laser firing continuously can't turn off.

@t3p3tony yes always firing in the laser mode.
I thought could be the chip may be issue on the duet laser pwm board. So, I have hooked up another one.

@t3p3tony I have plugged this to the duet ex header.

in the CNC mode even the pin 8 is not connected the laser firing. but, when i switch to laser mode it is not firing.

@t3p3tony ok. thanks

Hi Folks,
I have hooked up a laser module 10W to the Duet2wifi rrf3.3. (running CNC/LASER MODE switchable) through the additional circuit provided here.https://duet3d.dozuki.com/Wiki/Laser_PWM_control#Section_Controlling_the_laser

But, when i turn on my machine CNC mode-the laser also firing.

and when i switch to LASER mode also the laser firing continuously. i could not turn off the laser using any commands(M5, M5 S0)

My config file for the cnc
config.g

My config file for the laser
config.g

please could anyone help to sort out the issue?

@o_lampe thanks Buddy

Hi folks, after some time I have made the PCB -Duet wiki page.
But, I am using 24V for my duet2 board, and want to use a 12v separate power source to run the laser. my power supply connections are as per the below picture.

From that understanding, it seems like already the GND is commoned through the PCB board. isn't it? or do I need to common the GND between the two power supplies?

Please advise me to clarify my doubt.

Thanks, folks

@phaedrux I think the 12V pin is the laser's power source. but, my question, from the wiki page for the laser connection. it show should use the external circuit to get the right signal to operate the laser. that confuses me.

Hello Folks,
Just to give more information to get the appropriate feedback, posting the here again,
i have duet2wifi running RRF3.3. want to connect a 10W laser. link-https://www.aliexpress.com/item/1005001644617543.html?spm=a2g0o.productlist.0.0.252e475d54Jl2C&algo_pvid=5777b0cf-0500-4528-a597-9b947e75cfe6&algo_exp_id=5777b0cf-0500-4528-a597-9b947e75cfe6-10&pdp_ext_f={"sku_id"%3A"12000016952934727"}.
but, the driver board has a 12v-PWM-GND. it seems like the PWM is capable of 5V. in this case, can I just connect the fan1 port to the PWM as shown in the pic?
no need to connect anything to the 12V?

or do I need to make that breakout board to get the clear signal (must need to use any of the heater expansion breakout connections?

@sarvan

Hello folks, I got my 10W laser, with the laser drive board as shown below. My duet wifi running on 3.3 version. I need help which port I can use from duet configure laser PWM. And I saw most of the PWM working on 5V, mine one 12V.

@dc42 yeah, I have to check again, I think I don't have any H parameters

@dc42 yes. Running on 3.3. Here my code like in M563 line,
M950 R0 C"fan2 ...
M563 P2 R0 S"Spindle. Can I use any code to remove heater(hot end)

Hello Everyone,
Finally I managed to co figure my duet wifi with 895 motor. I want clarify one thing as I can remove the bed heater by M140 H-1, how can I remove hotend? Cause, during CNC mode still my hotend there.

Thanks