Hi all, I try to laser engrave text. The gcode is self-made. Everething looks fine in Luban and Elstam. I engrave from the controller to avoid wifi-problems. Still there are a few lines not printed. It looks they are done with 3%-5% power, like M3 starts too late or the laser is switched off to earl…

Based on the albedo comments, I wonder if using black whiteboard marker on the material that @Dirk1000 is using would make it work?

[image] ITmaze: Based on the albedo comments, I wonder if using black whiteboard marker on the material that @Dirk1000 is using would make it work? i sugested this very thing a while ago, this was Dirk’s response: [image] Dirk1000: Atom If I watch the burning a few seconds it is clear. …

[image] brent113: seems like the next step would be figure out [a bunch of physical quantities] […] Or is that a bit ambitious and not how it works. Oh, it could work, but it probably too much work. There are three basic ways of approaching this problem: Obtain and install a better driver …

Well, I mean, overly complicated software solutions to avoid fixing hardware are something of a specialty for me. Let’s do it haha. I do have the firmware source, and there aren’t any bugs I see that would explain the delay. There is a power lookup table that converts 0 to 100% power commanded from…

[image] brent113: I do have the firmware source Where did you get it? I haven’t found a download anywhere.

You can find it in this thread: [image] FYI:Source code of Snapmaker Firmware Snapmaker 2.0 Many people ask for the source code of firmware 1.7.0, and I will share the file here. Snapmaker Controller Snapmaker Modules

I connected a wire to control the output of the PWM. [LaserModule] Grey is GROUND and ORANGE 24V. YELLOW is 3,2V and BROWN 5V. Does anybody knows which PIN is which function? Or I will have to try.

Thanks. My naive expectation is that it would a bit more formal. Time to lower my expectations yet again.

They did claim that they would open source it completely when all the backer rewards were fulfilled (see post 7 in this thread): FYI:Source code of Snapmaker Firmware Which actually has happened according to the SM team: https://www.kickstarter.com/projects/snapmaker/snapmaker-20-modular-3-in-1-3d-…

Laser dropouts failure

Snapmaker 2.0 (3-in-1)

brvdboss October 31, 2020, 5:20pm 36

You can find it in this thread:

Topic		Replies	Views
Snapmaker 2 Dwell setting Gcode G4:Px and Laser Speed Snapmaker 2.0 (3-in-1)	17	2379	July 26, 2022
Problems with laser engraving Snapmaker2.0 Troubleshooting guides	51	10153	February 10, 2020
Laser Pause While Changing Power Snapmaker 2.0 (3-in-1)	91	5269	May 26, 2021
Laser: True grayscale instead of dithering? Snapmaker Luban	91	14712	May 30, 2021
Laser Frustrations and bugs Snapmaker 2.0 (3-in-1)	17	557	June 21, 2025

Laser dropouts failure

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