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Models shared by the SO3D.xyz community. Open any of them in the generator to see exactly how it was built, remix it, or print it as-is. Browse the model library by category
MAIN PURPOSE: Stop Bowden tubes moving in their couplers
Slide a horseshoe under the collet of each push-fit coupler, round the PTFE tube: the collet can no longer creep in and out with every retraction, which is what slowly wears the tube end and causes stringing and under-extrusion on Bowden printers.
Printing notes
0.2 cm³
Volume
0.3 g
Est. weight
332
Triangles
Print several in PETG; check the 2 mm thickness against your coupler. Prints flat as a plate, no supports.
MAIN PURPOSE: Join two filament ends into one strand
Thread 60 mm of 4 mm PTFE tube through the holes in the two end walls, push a filament end in from each side until they meet over the open middle, then warm that spot with a heat gun and push gently: the tube keeps the ends concentric, so the joint stays 1.75 mm and feeds through the extruder. Spool ends become usable.
Printing notes
7.6 cm³
Volume
9.4 g
Est. weight
6,276
Triangles
Print in PETG or ASA. Prints as shown on its floor, no supports.
MAIN PURPOSE: Calibrate extruder steps per millimetre
Stand the foot on top of the extruder, lay the filament along the strip and mark it at the 120 mm notch; extrude 100 mm and the mark should sit at the 100 mm notch. Any gap tells you exactly how far to correct the extruder steps, without juggling a ruler and a pen.
Printing notes
5.0 cm³
Volume
6.2 g
Est. weight
180
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Guide filament past a printer frame
Snaps into the 6 mm slot of any 2020 aluminium frame and holds a 4 mm PTFE tube 18 mm out from the profile: filament from a top or side spool runs through the tube instead of rubbing a groove into the frame edge and dragging against the extruder.
Printing notes
3.3 cm³
Volume
4.1 g
Est. weight
1,152
Triangles
Print in PETG; print a few along the frame. Prints as shown on its outline, no supports.
MAIN PURPOSE: Track bed-levelling knob turns
Push a cap over each bed-levelling wheel: the four engraved marks show exactly how far you turned each corner, a quarter turn at a time, so an adjustment can be repeated, halved or undone instead of guessed, and the four corners stop chasing each other.
Printing notes
2.5 cm³
Volume
3.1 g
Est. weight
5,134
Triangles
Print four in TPU so they stretch over knurled 30 mm wheels. Prints as shown on its floor, no supports.
MAIN PURPOSE: Mark square cuts on copper pipe
Snap the collar onto 15 or 22 mm copper pipe, slide its flat face to your mark and run a pencil round it: the line is square to the pipe, so the cut sits fully home in compression and solder fittings instead of weeping from a slanted end.
Printing notes
17.4 cm³
Volume
21.5 g
Est. weight
1,324
Triangles
Print in PETG. Prints as shown on its outline, no supports.
MAIN PURPOSE: Hold a survey pole plumb
Snaps onto a 25 mm detail or ranging pole and carries a 25 mm bull's-eye vial in its cup: centre the bubble and the pole is plumb over the point, so stakeout and level readings stop drifting by centimetres at the top of a tall pole.
Printing notes
7.6 cm³
Volume
9.4 g
Est. weight
1,336
Triangles
Glue a 25 mm bull's-eye vial into the cup; print in PETG. Prints as shown on its outline, no supports.
MAIN PURPOSE: Tuck fabric into furniture frames
A flat, tapering blade on a round handle for pushing fabric, leather and wadding into the gap between seat and frame, with a notch in the tip for guiding piping cord: firm enough to push, smooth enough not to snag or scratch show wood.
Printing notes
12.1 cm³
Volume
15.0 g
Est. weight
296
Triangles
Print in PETG or nylon and sand the blade edge smooth. Prints flat as a plate, no supports.
MAIN PURPOSE: Mark where a picture hook must go
Hang the picture's wire or cord in the notch, push a panel pin through the hole just below it, then hold the picture where it should go and press: the pin pricks the exact spot for the hook, so the picture hangs where you held it, first time, with no measuring.
Printing notes
11.2 cm³
Volume
13.9 g
Est. weight
288
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Find the centre of round stock
Press a round turning blank, a dowel or a log end into the 90 degree V and draw along the blade, whose edge lies exactly on the bisector; turn the blank a quarter and draw again. The lines cross at the true centre, ready for the drive spur, a chuck or a drill.
Printing notes
13.0 cm³
Volume
16.2 g
Est. weight
204
Triangles
Prints flat as a plate, no supports.