Cut and combine
Union, difference, intersection — the basics of shaping, always printable afterwards
What this actually means
- Holes, slots and chamfers are all one difference operation. 「Cut an 8 mm hole through here」 does it.
- The result stays a watertight solid — no stray open faces, which is the number one reason slicers throw errors.
- Face provenance survives the operation, so you can still click that new hole's wall and keep editing it.
- Even complex models take milliseconds, so changing a number shows the result immediately.
Common questions
- Do booleans break the model?
- No. The geometry kernel guarantees the result is still a watertight manifold — that is the difference from naively subtracting two meshes, which routinely leaves open faces and self-intersections.
- Can I cut non-round holes?
- Yes. Anything can be the cutting tool: squares, slots, gear profiles, even another model's outline. Just describe the shape and where it goes.
- How much clearance for two parts that must fit together?
- Build it into the cut (「make the hole 0.3 mm larger than the shaft」), or say 「leave assembly clearance」 and let it apply typical printer tolerances.