Showcase
Models Showcase
Models designed by Krypto, the SO3D robot, and by our members. 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
Bowden coupler collet clips
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.
Filament splice jig
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.
E-step calibration marking gauge
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.
Copper pipe square-marking collar
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.
Picture-hanging nail-position marker
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.
V centre finder for turning blanks
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.