[UM3 Feeder motor direction]

Hello,

 

On our UM3 (not S3) sometimes material is slipping in the feeder. Changed the tention already few times and cleaned it. but did't help. So decided to replace both the feeders. We bought what we thought was same/compatible orignal feeders. But are not entirely the same.

 

The new one has a flow sensor, the release switch/lever is different. But it fits fine. at least we thought. But material goes in the wrong direction 😞 Looking closer i noticed the tube goes on the other side of the wheel.

 

Is there a way to reverse the motor direction (setting or wiring)? Or is it recommended to get another and correct set of feeders?

 

Regards,

  Richard

[Rertraction on S3 does not work]

Quote

Change "combing mode" to "not in skin".

 

Yes, that works, it retracts now. Most is gone. Only left is a string after the "Prime blob", and sometimes a tiny bit of stringing after retraction.

 

Thanks.

[Rertraction on S3 does not work]

Whoops, indeed it's an Ultimaker 3 not S3.

 

Explanation of gr5 is clear, makes sense, fits what i'm seeing and is an setting i didn't touch until now. Thanks, i will try it later today.

 

Regards,

  Richard

[Rertraction on S3 does not work]

Hello, I'm working with a UM3 and trying to print with two colors of PLA. This works, but I keep getting strings. I watched the video to solve this, experimented with the retraction settings, z-hop, print speed, temperatures etc. I looked in this forum. But it simply doesn't get better.

 

One thing I notice is that it seems head 1 doesn't retract at all. I don't hear it pulling back the filament. When it switches to the second head, it always retracts correctly, doesn't have any strings. But to be fair, the first 95% is done by head 1, so it continually moves over already printed material.

 

Load/unload works fine on head 1. So my guess is it's not broken, but not sure.

 

Anybody an idea what else I can try or check? Any help is appreciated

 

Note: STL's are from Solidworks 2020.

Note: The attached photo is taken with the Cura default settings.