How can I fix this shifting? Geeetech delta g2s just built. I don’t believe it’s a belt or motor
My Prussia in had same issue turned out to be my gear on the y axis motor had weak connecting bolts that caused the gear to spin each time the motor stoped.
It’s your motion transmission system, no doubt about it.
This means you need to check pulleys, make sure their set screws are tight, check belts, check stepper drivers and make sure they’re not overtuned (they’ll overheat and shut off momentarily, before returning to a working state), or undertuned (travel moves can cause them to miss microsteps and cause a motor to jump), check idlers to make sure they’re not binding, ensure belt paths are straight and unobstructed, make sure hot end is secure and not shifting back and forth. Anything that could translate movement.
@ThantiK I don’t think I can mess with the stepper drivers? I think it’s either a set screw or pulley/belt. I know these motors act up with a tight belt
@ThantiK You can’t miss microsteps, only full steps.
So I loosened a belt and turned up the print speed… One of them did the trick
@Tim_Elmore , I’m referring to the fact that microsteps don’t always mean that something moves. The power transmission ability of the motor depends on which phase of microstepping the motor is in. If you have transmission components bound, you’ll actually notice “jumps” in the step rate as you get closer to a full step.
While what you describe is true, the microsteps aren’t missed in the traditional sense of the word as they aren’t lost forever - they get made up for in the next step that results in motion.
“Missed” microstep would not result in what we’re seeing here, as a missed full step is (very roughly) 0.32mm.
How do you feel about the quality and rigidness of geeetech materials?
It seems pretty good to me. Not the most stable to move around but if you keep it in one place it’s not a problem. This is my second printer and first I assembled and I love it. Especially since I just got the dual extruders working perfectly
It’s all good now. Loosened a belt and bumped up the speed. Just got through an hour print with no issues
I have the same problem, can you tell me if you can print without issues after a longer time? I was trying to solve my problem with less speed en more tension on the belts (thinking opposite) , without result!
There’s ton of information on the Geeetech G2s Community group, including a lot of ‘quick’ G2s fixes that can help:
https://plus.google.com/communities/102777312869306592721
I had a similar problem - turned out was getting belt jams at the top idler pulleys.
Changing the pulley bearings to flanged bearings completely solved my issues, but in the meantime some printed belt guide washers really helped.