Laser-cut cube 60 mm
Laser cutting6 parts
Giant bolt and nut M20
3D printing2 partsBeginner-friendlyNo supports
A chunky M20 bolt with hex head and 40 mm of thread plus a matching nut, made big for small hands to screw together. Children can twist the nut on and off, count the turns or build with it; the extra clearance of 0.5 mm lets the coarse thread run easily even if your printer is not very precise. Print bolt and nut in two colours – with several sets, it becomes a game where every nut has to find its bolt. Not for children under 3: the nut is a small part.
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- Size
- 74.28 × 30 × 52.5 mm
- Print time
- ≈ 45 min
- Filament
- ≈ 20 g PLA
- Parts
- 2
Print settings
- Material
- PLA
- Layer height
- 0.2 mm
- Infill
- 40%
- Walls
- 3
- Supports
- none
Worked for others:
Tip: Print as shown: bolt standing on its head, nut lying flat, no supports needed. A layer height of 0.12–0.16 mm makes the thread cleaner. Printed bolts break more easily than metal ones – don't tighten them hard.
Estimated by our slicer-like calculation for a 0.4 mm nozzle. Your slicer may show slightly different values.
Adjust it
- Thread: M20 × 2.5 mm
- Bolt: 40 mm thread, 52.5 mm overall
- Nut: 30 mm across flats, 18 mm high
- Thread Ø: bolt 19.75 mm, nut 20.25 mm (nominal 20 mm)
This model comes from the “Bolt and nut” generator. Open it there with these settings and change any size you like.
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