I created this simple model of Forklift as a toy for my cousin in SketchUp, made it component and exported as an stl. file for my slicing software (Cura). I want to 3D print it. When I look at model in Cura, there are a lot of holes. I have been using SketchUp for some time now, but I still consider myself a novice. I was trying to fix model myself, but I haven’t found anything. Could you help me please, so I wouldn’t make the same mistake in future?
There is the original model:
Forklift.skp (5.4 MB)