A350/40W laser - Self pauses immediately

A350 with enclosure & quick swap kit.

After selecting any project, controller screen becomes sluggish to advance steps (but will back up without hesitation). When finally able to set material thickness and project origin, job starts then head raises to top position and screen shows project paused. 5-10 minutes later controller will accept resume input. Head will move into position and project will pretend to run for approximately 4 seconds before pausing again. I say pretends to run as laser does not power on.

Attempted with: attempted with fire sensor on and off; door detection on and with it off. Removed and replaced all cables; cable pins in good shape, cleaned with ISO and dried.

What module, and is your FW up to date?

40W laser, quick change mount on A350; Firmware is current (Snapmaker2_V1.20.3_20240716)

Are you running the 40W on the standard cable, or the higher power cable?

You can’t disable the enclosure door protection with the 40W regularly and it seems to go into protection mode.

Check your enclosure door magnets or door state with M119 or M1010, honestly i am not sure if the door state is displayed with this commands..

Maybe there is something interesting if you check your Toolhead state with M1006.

https://wiki.snapmaker.com/en/Snapmaker_Luban/manual/2_supported_gcode_references

The higher power split cable.

Could you hear the Toolhead cooling fan?

https://wiki.snapmaker.com/en/snapmaker_artisan/troubleshooting/troubleshooting/20w_40w_laser_overheat

Did you check your door detection enclosure magnets?

https://wiki.snapmaker.com/en/Snapmaker_2/troubleshooting/door_detection_error

I feel the fan may be the right path. Received similar guidance on the help ticket that was opened. The reason this feels like the likely cause despite no error messages, as I opened the case to check the connection and ensure the fan rotated freely, I was granted with what looked like melted plastic bits everywhere. I’m at a loss where it came from as this has been an issue from the first day I attempted to use it straight from the box (yeah, yeah likely story…dingus probably did something stupid)

Scraped off heat exchanger and fan and dumped out the burnt smelling bits. Tested door contacts and sensors independently and they are lighting and appear to be functioning well. Next is the hook up and test.

Working like a dream now. Confirmed toolhead fan was not working.

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If you are lasering composite woods, like MDF or Ply, the melted resin can clog the laser and fan..
I recommend an air intake and tubing. plans in Thingiverse.