Hi everybody, so I’ve been have engraving issues for a while which doesn’t bother to much as just about everything I do consists of cutting operations only. My machine is a homemade co2 laser using a Arduino uno running grbl 1.1h, I dont beleive that lightburn or grbl is really the issue here.
When i try to engrave just about anything over 3in long the laser will just stop at some point then i need to unplug and re plug the usb to the Arduino to get a connection again. Making me thing its some kind of connection issue.
The Tricky Bit:
I Always just play with the speed setting thinking that was the problem however i just noticed yesterday after tirating up in power during an engraving that the machine will engrave just fine up to 15% power, but once i go up to 20 or higher it will again just stop at some random point during the engraving leaving the controller saying busy till i reestablish the connection.
After passing some point in power power I end up building to much static electricity that causes a connection failure. (Idk though cause it cuts just fine going up to 50% power)
The additional speed used during engraving in conjunction with power above 15% is causing some kind of interference. (for cuts im usually between 4-15mm/s at around 45-50% power as compared to 100mms when engraving)
I’d just like to hear some theories as to why you might believe this is an issue or maybe even a fix.(like idk trying to ground the laser tube on an additional ground or something) keeping in mind that the machine works just fine for cutting and engraving at or under 15% power.