mriscoc
[BUG] Laser problem with latest FW
Did you test with a precompiled firmware?
Yes, and the problem still exists.
Bug Description
The firmware version where laser works correctly with correct execution of G-code: Ender3S1-F4-CVLM-20230812.bin
laser settings: Ender3S1 with Marlin G-code BaudRate 250.000 S-value max = 9999 Laser Control Commands = M03/M05
On latest firmware laser does not work or works incorrectly firmwares versions with the problem:
Ender3S1-F4-CVLM-20230904.bin Ender3S1-F4-CVLM-20240127.bin
incorrect execution of G-code - during the execution of G-code the laser does not turn on laser settings same as earlier:
Ender3S1 with Marlin G-code BaudRate 250.000 S-value max = 1000 (any value of this parameter does not solve problem) Laser Control Commands = M03/M05 (other M106/M107 or Inline do not fix the problem)
Software used: LightBurn.V1.7.03.dmg for MacOS (downgrade LightBurn version not solve problem) Advanced settings - Laser Control - Toggle Laser - Laser ON (Laser diode begin lid on minimal brightness (as usual))
example of G-code generated by LightBurn that is sent to the printer (console out)
Starting stream G21 G90 M9 M05 G0 X30 Y20 F0 Layer C00 M03 S1000 G1 X50F6000 M9 M05 G90 G0 X0 Y0 F0 echo:Unknown command: "M9" echo:Unknown command: "M9" Stream completed in 0:00
Laser behavior: bright flash, move to the starting point of the drawing, burning the drawing (but the laser does not emit power (like in idle mode) and nothing is drawn), at the end a bright single flash, move to the home position
on the LightBurn forum (https://forum.lightburnsoftware.com/t/ender-3-s1-pro-tips-tricks-and-suggestions/141611) they advise using Start G-code command = M3 This advice does not completely help Here is the laser behavior: bright flash, move to the starting point of the drawing, burning the drawing at an unknown power (the laser emits power, but the program sets the value to 1%), at the end a bright single flash, move to the home position
Here is the G-code
Starting stream M3 G21 G90 M9 M05 G0 X30 Y20 F0 Layer C00 M03 S10 G1 X50F6000 M9 M05 G90 G0 X0 Y0 F0 echo:Unknown command: "M9" echo:Unknown command: "M9" Stream completed in 0:00
Expected laser behavior - moving to the starting point, burning at a given power, turning off the laser. Unfortunately, no settings can achieve success.
Previously, on the Ender3S1-F4-CVLM-20230812.bin firmware, no settings were required and the laser worked correctly. If no change settings in LightBurn and downgrade mriscoc-firmware to Ender3S1-F4-CVLM-20230812.bin then laser works fine!
maybe there is a problem with slow PWM in last FW?
Bug Timeline
No response
Expected behavior
No response
Actual behavior
No response
Steps to Reproduce
No response
Version of Professional Firmware
FIRMWARE_NAME:Marlin 2.1.3 MRiscoC Ender3S1-F4-CVLM, based on bugfix-2.1.x (Jan 27 2024 19:26:39)
Printer model
Creality Ender3S1 F4
Electronics
No response
LCD/Controller
No response
Other add-ons
No response
Bed Leveling
None
Your Slicer
None
Host Software
None
Additional information & file uploads
No response
Something was changed in the Marlin code base that maybe broke the laser functionality, unfortunately I don't have currently the hardware to do the test to solve this issue.
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Unfortunately, I can't help test this, either. I have neither a Mac nor have I ever successfully tried streaming GCode (Octoprint or otherwise) for laser to the E3. Since so much manual adjustment is often needed to setup each piece to be engraved/cut, I figured there was little point in being able to control/send gcode remotely. I've stuck with SD card for all laser gcode and left connected/streaming control (Octoprint in my case) only for FDM gcode.
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@TheWebMachine
Hi, did you test the latest versions? the OP indicated a change in the behavior of the current versions versus the 20230812, not related to remote gcode but a local SD file.
This issue has had no activity in the last 60 days. Please add a reply if you want to keep this issue active, otherwise it will be automatically closed within 10 days.
This issue has had no activity in the last 60 days. Please add a reply if you want to keep this issue active, otherwise it will be automatically closed within 10 days.