SoliForum - 3D Printing Community — Weird mid-layer extruder shift?

Re: Weird mid-layer extruder shift?

2014-05-27T15:24:51Z

If you have ensured that the generated G-code isn't showing that path then you might adjust the VREF's. I put it that way because this just doesn't look like normal stepper skipping to me. Sometimes it is difficult to tell from a picture with out putting it into context (.stl) so we know what it is supposed to look like.

Re: Weird mid-layer extruder shift?

2014-05-27T13:14:00Z

Ok, so I added lubrication to both axes and that didn't help. Neither did cooling the electronics. Any other ideas?

Re: Weird mid-layer extruder shift?

2014-05-21T13:05:51Z

Thanks, I'll try these suggestions and keep everyone updated.

Re: Weird mid-layer extruder shift?

2014-05-21T03:51:28Z

Have you added any lubrication to the rods for the X or Y axis?

Re: Weird mid-layer extruder shift?

2014-05-20T18:27:02Z

Start by cooling the logic board. Most of the time this is an issue with the stepper drivers getting too hot. You can add miniature heatsinks to the steppers, or you can add a fan to cool the electronics.

To verify this is the problem, just get a desktop fan and put it behind the printer pointing to the electronics.

Does this solve the problem? Then print one of the many fan holders here and on Thingiverse, for a permanent fan installation.

Re: Weird mid-layer extruder shift?

2014-05-20T18:07:15Z

An addendum: The extruder isn't getting caught on anything. It'll just stop mid-layer and shift in the positive y-direction (most of the time).

Weird mid-layer extruder shift?

2014-05-20T14:06:40Z

As shown in the pictures I've attached, my SD3 has recently started having a weird axial shift in the middle of a layer. It can be x,y, or both axes, but I'm not having any trouble with z (knock on wood). Any idea what's going on here?