Halftone plotting using grbl laser mode
Using grbl laser mode to paint a halftone image
. Spindle speed PWM signal controls a servo to adjust line width of a brush pen.
GRBL firmware from: https://github.com/cprezzi/grbl-servo
GRBL-Plotter: https://github.com/svenhb/GRBL-Plotter
https://grbl-plotter.de/?setlang=en
My foldable plotter: http://svenhb.bplaced.net/?CNC___Klap...
0:00 Einleitung
0:12 Check that the base plate is leveled. An inclined or wavy base plate leads to poor results
0:37 Evaluating the possible PWM range - to avoid unnecessary intermediate values
1:01 Adjusting the PWM values for servo-up, -zero and down
2:13 Difference between laser mode off and on
3:34 Generating the GCode
4:28 Plotting the image
6:40 Spiral
8:42 Using an external path
#grbl #plotter #grblplotter #plotterart #penplotter