I’m adjusting the feedrate in piclaser then sending the picture in pic sender. Whether it’s a feed rate of 200 or 10000, it’s not changing speed and it’s charring the heck out of the wood. How do I fix this?
What version of grbl are you running? If it’s not a version for laser use, the S commands will dwell on every line of gcode and run slow.
Jtechs version of Grbl
There are two versions of J-Tech grbl. Version 9g & and Larry’s 1.0c. Which version does it show after connecting to the com port?
You need to make these changes to the grbl settings to increase the axis movement speed & performance.
$0=30 (step pulse, usec)
$1=255 (step idle delay, msec)
$11=0.005 (junction deviation, mm)
$120=6000.000 (x accel, mm/sec^2)
$121=6000.000 (y accel, mm/sec^2)
Also engraving at a 45D angle will run smoother/faster.
There is a MultiMode grbl version that can be downloaded from here:
There is a link for setting up PicSender for it there also.