I am trying to 3D print this for a class and I don’t know how to fix it. I had a friend look at it and he said that it’s completely hollow. This is my final project and I don’t really want to redo it. The stl is below.
You can select all of the loose geometry and cut it to the clipboard. Then open the group for editing, right click and choose Paste in place. Then you need to select all of the geometry, right click and choose Intersect Faces>With Model. After that, hide the bottom face and get rid of the internal faces and edges. Some are shown selected below.
There’s also internal faces in places like the end of that rail, shown selected, below.
another bad spot is in the 3D text. The font you chose connects the leg of the K with the foot of the A at a single edge. Either separate them or make them overlap. I just drew a straight line segment down at the bottom of the K and use Push/Pull to push away to create a gap.
Ok so I fixed the border holes, should I worry about internal faces (there’s 10)? There’s also 777 short edges but I think that’s just the scale of the model, I plan to blow it up in Prusa before I print it.
Yes. You should remove all internal faces. As long as you have a solid, I wouldn’t worry about the short edges.
In the future, if your slicer software allows you to enter the import units, you might find it easier to model with Units set to Meters. Enter inches or millimeters as if they are meters. This will help you avoid potential problems due to tiny faces.