Chopping excess bits off an imported stl :) quite a beginner to blender, have rendered a rough 3d model of a battery compartment for a '78 Triumph Bonneville and imported it, but it's got lots of bits I need to slice off and delete. Then I'll need to quarter it for printing. Dont understand how to chop stuff with Blender, please help guys! :)
The images shown are from the app where the stl was constructed
To chop off stuff, there is an option in Blender, I believe, to delete disconnected parts of a mesh. You can also use the removed doubles option to remove overlapping vertices. If you want to remove triangles as well, you can press Alt+J to remove them as well.