I just bought a Sainsmart Jinsoku LC-60A 5.5W Laser Engraver Cutter to have fun with my granddaughters who are coming to spend a few weeks with me at the end of August. Since I have a Macbook Pro (running on Big on 11.7.8), I have to use Lightburn. My problem is the following: as soon as I import an SVG or PNG file, I am unable to make it without the traversal lines being also engraved. On the other hand, no problem when I create a project directly with lightburn or import one of my photo. I tried typing the command $32=1 but it didn’t change anything. I also tried to install the GRBL-M3 device but I’m unable to connect my computer with my laser.
Could using Lightburn with a Windows computer could fix this problem or is it laser related?
Some of the Sainsmart machines originated as CNC machines so $32 is often set for a CNC device with a rotating spindle. Please confirm that $32=1 for laser mode. This may address your engraved Traverse lines.
Avoid GRBL-M3 if you can. It’s generally for older Machines.
It’s always of interest to know which Firmware you have and the Build date to advise with respect to GRBL or GRBL-M3. If you Select and Copy the start message text from the Console window in LightBurn and paste it into a reply here the GRBL version would be shown and we can advise more completely.
Thank you. My engraver is at my summer house but looking at my console window, I think that the start message is:
Grbl 1.1f [‘$’ for help]
[MSG: ‘$H’|‘$X’ to unlock]
[MSG: Caution: Unlocked]
Now that this is working, Click file, click Export Prefs and save this file somewhere convenient.
When you switch back to the other computer, you can export Prefs there too and I can compare the two files to see what is wrong. If you’re not interested in what went wrong you can simply import the Prefs ‘User Preferences’ file to have the engraver work on the other computer…