I had the rig I built from the kit with Rambo board and dual end stops was working for a while and everything seemed good. Of course I couldn’t leave well enough alone and I hooked up a laser. The laser ran off 12v so I hooked it into the fan and used M106/7 to turn it on and off. I ran a couple simple etching jobs and all seemed well. I had the rig powered up, the laser/fan off (M107) while I worked on an etching test.
A little while passed and I tried to run an etching test, in cncjs I noticed it wasn’t responding to the Axis controls. I could insert commands at the command prompt in cncjs and the rig would respond but wasn’t getting an ack or any output back. The Axis wasn’t keeping track of location.
I tried everything and couldn’t get it working right. I reinstalled cncjs on a brand new raspberry pi. I tried flashing the latest marlin firmware but I get avrdude timeout errors.
any idea what cause the problem in the first place?
does this have to do with the way I hooked in the laser, and was there a better way?
any idea how to get round the timeouts.
I actually had another rambo board (don’t ask why). I flashed it just fine and got back up and running but the fact that this one stopped working troubles me.