More unexpected slicing results  

RE: More unexpected slicing results

Please zip and upload the 3mf file you're using. I downloaded the model, cut it, and sliced it, no problem, so there's something in your specific settings.

RE: More unexpected slicing results

I have found that if I cut this into parts inside of prusa slicer, I get a good slice.  If I slice with the 3d builder "Split" function, everything looks good, but PS then mangles it on slice.  Heres the file that doesn't slice correctly.  The parts were split out using the microsoft 3dbuilder program.

RE: More unexpected slicing results

@dan-rogers

Okay, not sure what's going on...

It's not showing any errors in Prusaslicer but I exported the larger component and loaded it into netfabb. No errors again. I ran a repair anyway, exported it, and now it works fine in Prusaslicer. It does show with 6 facets less than the original.

Interestingly, now if I load the 3mf with the original *and* the fixed version, the original now throws 12 errors... Why it didn't show them before, I don't know. 

I guess you can't blame PS for slicing errors in this case, only for not correctly reporting an issue with the model. I'd put the blame with 3dbuilder.

In any case, here's the fixed 3mf

RE: More unexpected slicing results

@fuchsr

Thanks.  I was able to move ahead by loading the original shape into PS and using the CUT tool within the slicer.  Sliced it at the exact same place as I had with 3dbuilder - but it sliced perfectly - so something bobbled in the split operation.  I've got it printing now - by cutting it where I did, I am able to vase print both parts, and the plan is join them back together later.  Should shave 8 hours off of the print-original-with-supports.  For an air dam, a vase print should be fine.

RE: More unexpected slicing results

vase print successful

RE: More unexpected slicing results

Glad to worked it out!

Not sure what the point of the model is though, I admit. I keep the PSU inside the enclosure for my Mk3S, and I've been printing for months, almost 24 x 7, no problem. Even printing PC Blend, ABS, etc, the highest temperature the thermometer I put inside the enclosure ever measured was 37 Celsius. 

RE: More unexpected slicing results

It's probably just a tinkering thing.  I saw it - 12 hour print, lots of support needed - can I make it in fewer hours?  No support?  Vase mode?  I like vase mode for tinkering prints - they don't eat up a lot of filament.  In the original print, a third of a spool of filament would be used.  It's all good learning experience.  Even the wackiness with the slicer - all learning the ins and outs so some day I can do this better. Anyway, thanks again for your help

RE: More unexpected slicing results

@dan-rogers

Looking at the picture in post #6, I'm pretty sure you could print in normal (not vase) mode in that orientation without support (except a brim).

RE: More unexpected slicing results

@dan-rogers

And as far as tinkering is concerned, this is a great example of the value of swapping nozzles. With a 0.6 mm nozzle and 0.35 mm layer height, zero infill, it's down to 6.5 h.