Oh Crud!
Just updated my all original ShapeOko 1 red series 1 with the dual axis upgrade, and now have two issues. I’m overheating my drivers, again, such that my cooling fan is no longer sufficient. And I appear to have introduced a 1/4" twist to my frame that I’ve been unable to correct, even with the dual steppers.
Suggestions please, considering my limited funding with Canadian pesos.
For the twisting, I would loosen one of the belts and then push the gantry all the way to the end that has both belts still attached. Then hold the belt tight with my hand and manually move the gantry away from the end a few inches then move it back. That way you can check that the belts align. Then tighten down the belt with the gantry still pressed straight to the end.
Over heating drivers was something I experienced in the beginning. If you are still running the original grbl shield, I ended up adjusting the potentiometers on each motor. Then added a 5v fan right on top of the X&Y axis to help cool it down. I haven’t had a problem since.
Hey Marc, Thanks for your replies.
I tried the belt thing but as the steppers don’t hold… I can live with the 1/4" skew for now, but it appears I’m going to have to use brut force to hold it straight. I must have bent it somehow when I dualed the Y axis.
As for the overheating of my original batch 1 grbl shield; I have a small piece of copper water pipe that I’m going to take a dremel to and use some thermal paste to stick it to the driver chips.
A 1/4" skew is quite a lot. Can you introduce pictures so we can better see your issue?