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Taz 6 Control box PEM nuts crooked
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Description

We've seen several Taz 6 control boxes at calibration where all the PEM nuts on the 2 vertical sides are crooked, so when the screws are installed, they look cross-threaded.



@MikeR has been able to re-tap a few for me but if there continues to be a lot more showing up, I don't know how time efficient that will be.
Is there any way these can be caught and dealt with before they get to calibration? Or ideas to fix them?

Event Timeline

paulette created this task.May 28 2019, 4:22 PM
paulette created this object with edit policy "LulzBot Hardware Products (Project)".

@Steven @bowman is it ok to pass these until we get a fix or something?

Steven and I found that most of these will be acceptable by tightening the screws a little more and they should be okay. If there are any that look extremely crooked, then we will have to correct it by either re-tapping or replacing the chassis.
@guadalupe Please keep a look out for these when using any chassis to build boxes. Make sure that the pem nuts are straight.

AOJAS added a comment.EditedMay 29 2019, 8:38 AM

Oliver and I have talked to PMM about this. They have suggested that the holes should be centered on the flange rather than offset towards the curved side, because their machines have trouble putting the inserts in so close to a curved edge. I told them to submit a redesign to Josh Perry to be approved by R&D to improve the manufacturability of this part.


Justin Stamper