Cannot print items with through holes

Ultimaker / Cura

3D printer / slicing GUI built on top of the Uranium framework

GNU Lesser General Public License v3.0

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Cannot print items with through holes #10583

Closed wiresplus closed 3 years ago

wiresplus commented 3 years ago

Application Version

4.11.0

Platform

W10 (64-Bit)

Printer

TwoTrees Bluer

Reproduction steps

1) make a file with a hole in the middle eg a donut 2) slice 3) print

Actual results

Donut has no hole, despite looking correct before slicing Reopening file in Cura shows structure for hole, but hole filled in

Expected results

Donut should have a hole in the middle

Checklist of files to include

[ ] Log file
[X] Project file

Additional information & file uploads

TWOTB_B_Spigot.zip

nallath commented 3 years ago

The model is broken / incorrect (The model needs to be "Watertight" and "Manifold"). The polka dot pattern indicates what areas are broken. In some cases it might result in a valid print, but in this case it doesn't. Please repair the 3D model and try again.

You can find more information about this on https://www.instructables.com/Non-manifolds-Your-Worst-3D-Printing-Nightmare/