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In M3 laser mode (constant power), G0 moves don't clear laser PWM #486
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I implemented a dirty solution that is working fro me in GCode.cpp (at the end of [7. Spindle control ] line 1421)
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M3 turns on the laser regardless of motion. That is how it is supposed to work, as defined by the original GRBL 1.1 spec : |
Note that GRBL ESP32 was working properly, meaning that in laser mode, when issuing G0 command, PWM was put at 0. |
I will look into this when I have time. |
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Controller Board
Personnal board
4 DRV8825 driven through I2S_Stream
Laser PWM pin
Enable Laser pin (reversed because of K40 power supply)
Help From Board Vendor
Machine Description
Stock K40
And test on table with oscilloscope
Configuration file
Startup Messages
User Interface Software
Lightburn / GCode / Console
What happened?
GCODE is the following :
If I suppress M3 command (but I need it), LASER is turned OFF after G1 command
Other Information
No response
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