Cura slicing rings in strange manner

[cburton95 0]

I'm trying to print some simple ring-like objects to use as stitch markers for my wife's knitting.  However, cura keeps slicing these parts so that it prints a partial ring and then tries to print the other side.  This keeps resulting in inconsistent prints, and I can't figure out what setting I should be changing (if any) to prevent this.  

 

Does anyone have any idea what is going on or how to fix this?

 

[GregValiant 1,354]

There might be a problem with the model.  You can see that the red Outer Wall is printing from the OD to the ID and that really shouldn't happen with a simple ring.  If that condition is only occurring on the top layer then maybe the model isn't flat??

 

Post the model file and I can take a look.

[cburton95 0]

Looks like you're right.  Cura is showing a *miniscule* unsupported overhang when viewed from below, so that's presumably the problem.

 

I'm just gonna move on from this model and either find another one or model my own.

 

Thanks for the help.

stitch_marker.stl

[GregValiant 1,354]

I think it just wasn't sitting flat on the build plate.  The rotation tool has a Lay Flat function that should work on this.