billh_nm

Thanks. I'll give freecad a shot. Tried the link that @ashton posted but the repaired version still throws errors. Was trying to fix in F360 and not getting very far -- but that is probably due to my lack of skills -- "I am only an egg." Halfway through a print so will see how it comes out. [Edit: Print came out fine, no apparent holes, voids or other issues] [Edit: Pulled it into FreeCad, and did all the evaluate and fix steps. FreeCad showed everything was good, but the 'repaired' file still shows as non-manifold in Cura and now has a completely new obvious missing mesh piece that wasn't present in the original version. See the pic:]

Thanks very much. Unfortunately it's not my design and I'm not the OP on this thread -- pulled this off Thingiverse to print and came across this thread while researching the error message. I will post these comments back to the original maker. They did not post anything but the .stl Since this design has been posted since 2016, I'm not holding my breath for the original designer to fix these. Is there any way in Cura (or anything else - F360, OpenSCAD, etc.) to fix this without having to start from scratch? Thanks in advance for any advice, - Bill

Here are two from Thingiverse. https://www.thingiverse.com/thing:1697916 Confirm they sliced with no errors in Cura 4.4.x - Bill Standard_Short_375_6pt.stl Metric_Short_375_6pt.stl