Hi, I have run into a GRBL error issue. I created the gcode for Nomad from MeshCAM 7. The spindle shut down and the grbl error occurred at the same place in the gcode every single time. From previous posts this normally means that you have noise in the circuit that powers your Nomad and your USB signals to the machine become corrupted. However, I followed all of the suggestions and changed to cleaner circuits. Nothing worked, the error continued to occur in the same place. This happened when the mill was cutting out a bearing trace in 1/8" Aluminum.
It appeared to me that the error cropped up (and the machine stopped) when the spindle was stressed. So I cut the feed rate to 50% right at the point where the bearing trace was being cut out. When I ran the job it cut out the bearing trace and continued until the next more complicated part of the gcode.
I am thinking that somehow the amperage draw on the spindle motor is triggering the grbl error. It looks to me that I need to feed the spindle motor more power or change the feeds/speeds when I do complicated cutting. Any ideas?
… PROBLEM SOLVED
Because I am a newbie to MeshCAM 7 and Nomad, I used the default feeds and speeds for Aluminum in MeshCAM (feed 9.8, plunge 1.2, 10,000 rpm and step-down 0.038). However I found this document Nomad883_feeds_.125
I was cutting through 1/8" aluminum in three passes. When I changed to the smaller step-down listed in this document my cuttings were not that much smaller and the job ran all the way through.
Kudos to the Carbide 3d folks that have responded to my newbie issues, even over the weekend.