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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: Feed filament out of a sealed dry box
Drill a 14 mm hole in a dry box or a cereal container lid and push the spigot through: the 4.2 mm bore grips a 4 mm PTFE tube airtight, so filament feeds straight from the dry spool to the printer without letting damp air back in.
Printing notes
5.8 cm³
Volume
7.2 g
Est. weight
1,696
Triangles
Print in TPU. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Filter resin back into its bottle
Sits in the mouth of a resin bottle and holds a disposable paint strainer cone in its 120 mm bowl: pour the vat back after a print and cured flakes stay in the strainer instead of ruining the next print. The narrow spigot leaves room for air to escape, so the bottle never glugs.
Printing notes
61.7 cm³
Volume
76.5 g
Est. weight
1,696
Triangles
Print in PETG and wear gloves; resin attacks PLA over time. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Strip wires to length and check conductor size
Push a stripped conductor into the slots along the top: 8, 11, 13 and 18 mm are the strip lengths lever connectors, sockets and switches ask for. The five holes check solid conductor size, 1.5 to 10 mm squared, so the right cable goes on the right breaker.
Printing notes
9.0 cm³
Volume
11.1 g
Est. weight
8,196
Triangles
Print in PETG. Prints flat as a plate, no supports.
MAIN PURPOSE: Check when a notched trowel is worn out
Hold a notched trowel's teeth against the matching square notch: when a tooth no longer fills the notch, the trowel has worn and spreads too little adhesive under each tile, the usual cause of hollow-sounding and cracking tiles.
Printing notes
13.3 cm³
Volume
16.5 g
Est. weight
6,324
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Start spark plugs without cross-threading
Push the soft tube onto the top of a spark plug and use it to lower the plug down a deep plug well and start it by hand: if the thread begins to cross, the tube slips instead of forcing it, so you never strip the thread in an aluminium cylinder head.
Printing notes
3.3 cm³
Volume
4.1 g
Est. weight
6,472
Triangles
Print in TPU. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Match string height to the fingerboard radius
Each side of the square is a concave arc: 7.25, 9.5, 12 and 16 inch radius. Sit it on the fingerboard to identify the radius, then under the strings to set the saddle heights to the same curve, so every string has the same action.
Printing notes
13.5 cm³
Volume
16.8 g
Est. weight
8,380
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Draw lines parallel to a board edge
Hook the fence over a board edge and run a pencil in one of the six holes: they sit 5, 10, 15, 20, 25 and 30 mm from the fence, so you draw a parallel line for a rebate, a hinge or a row of screws in one stroke without measuring twice. Print it as shown, then turn it over so the floor becomes the top.
Printing notes
7.7 cm³
Volume
9.5 g
Est. weight
1,056
Triangles
Print floor-down as shown, then turn it over to use it.
MAIN PURPOSE: Set exact bevel angles on a saw
A triangle whose corners are 45, 60 and 75 degrees: stand it on the saw table against the tilted blade and its sides set the bevel to 45, 30 or 15 degrees exactly, without trusting the saw's worn tilt scale. It works against a mitre gauge, a drill press table or a sanding disc too.
Printing notes
28.5 cm³
Volume
35.4 g
Est. weight
4,972
Triangles
Print slowly for flat, true faces. Prints as shown on its outline, no supports.
MAIN PURPOSE: Cut threaded rod square without damaging threads
Run a nut onto M6, M8 or M10 threaded rod, push the rod down through the guide to your mark and saw along the slot between the two plates: the cut comes out square and the thread is supported right up to the blade, and backing the nut off over the end re-forms the first thread.
Printing notes
14.1 cm³
Volume
17.5 g
Est. weight
1,098
Triangles
Print in PETG. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Measure and set servo angles
Lay the disc on the servo with the output shaft through the centre and fit the horn on top: the horn points to the engraved angles from 0 to 180 degrees, so you can centre a servo, check its real travel and set end stops before building it into a robot arm.
Printing notes
12.4 cm³
Volume
15.3 g
Est. weight
16,508
Triangles
Prints flat as a plate, no supports.