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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: Open jump rings with one pair of pliers
An open ring worn on the index finger with two slots on its crown: hold a jump ring in one slot and twist it open sideways with pliers in the other hand. One tool replaces the second pair of pliers, and the twist keeps rings round instead of pulled apart.
Printing notes
2.3 cm³
Volume
2.8 g
Est. weight
1,764
Triangles
Print in PETG; the split ring adjusts to the finger. Prints as shown on its outline, no supports.
MAIN PURPOSE: Shape hand-knitted socks while they dry
A flat foot form, 220 mm from heel to toe: slip a freshly washed hand-knit sock over it and let it dry, and the sock keeps an even shape and opens up its lace or colourwork pattern. Hang it by the hole while it dries; print two for a pair.
Printing notes
84.2 cm³
Volume
104.4 g
Est. weight
356
Triangles
Print two in PETG; fits a 230 mm bed. Prints flat as a plate, no supports.
MAIN PURPOSE: Build adjustable boxes for silicone moulds
Four identical L walls with one arm set a wall's thickness further out: rotate each by 90 degrees and every inner arm slides inside its neighbour's outer arm, so the four make any mould box from 60 to 180 mm square. Clip the overlaps, seal the base with plasticine and pour silicone or resin.
Printing notes
31.2 cm³
Volume
38.6 g
Est. weight
184
Triangles
Print four in PETG. Prints as shown on its outline, no supports.
MAIN PURPOSE: Comb floating paint into marbled paper patterns
Twenty-six tines at 10 mm spacing on a 260 mm bar: drag it through paints floating on size and the stones break into the even nonpareil and wave patterns of traditional marbled endpapers. Pins pushed into a strip of wood bend and snag; printed tines stay straight and wash clean.
Printing notes
28.0 cm³
Volume
34.7 g
Est. weight
752
Triangles
Print in PETG. Prints flat as a plate, no supports.
MAIN PURPOSE: Rule slant lines for pointed-pen calligraphy
A set square whose long edge stands at 55 degrees, the slant of Copperplate and Spencerian script: slide its base along a ruler and draw slant guide lines across a practice sheet in seconds, instead of measuring every line with a protractor.
Printing notes
23.6 cm³
Volume
29.2 g
Est. weight
4,164
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Mark rooms by touch at the door handle
Slips over a lever door handle, the one place every visitor's hand already goes: the room number stands 1.2 mm proud in large plain figures, readable by touch for blind and partially sighted visitors and by sight for everyone else, with no drilling into the door.
Printing notes
16.9 cm³
Volume
21.0 g
Est. weight
7,424
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Label shut-off valves for emergencies
Snaps round a 15 mm pipe next to a stopcock or valve and names it: MAIN WATER, GAS, HEATING. In a leak or an emergency, whoever is at home finds the right valve at once instead of guessing among the pipes under the sink.
Printing notes
4.9 cm³
Volume
6.0 g
Est. weight
2,972
Triangles
Print in PETG in a bright colour. Prints flat as a plate, no supports.
MAIN PURPOSE: Label keys with a rewritable tag
A key tag with a recessed writing panel: write the door or locker in pencil, rub it out and reuse it when the key changes. The 2 mm rim keeps the panel off other keys and coins, so the writing survives a pocket.
Printing notes
2.8 cm³
Volume
3.5 g
Est. weight
1,160
Triangles
Print in matte PLA so pencil grips. Prints as shown on its floor, no supports.
MAIN PURPOSE: Turn a drinking glass into a display dome
A 96 mm plinth with a groove that takes the rim of an upturned drinking glass: any tumbler from 82 to 90 mm across becomes a dust-tight dome over a figure, a pocket watch or a fossil, and the groove stops the glass sliding when the shelf is dusted.
Printing notes
36.2 cm³
Volume
44.9 g
Est. weight
1,008
Triangles
Prints as shown on its floor, no supports.
MAIN PURPOSE: Handle postage stamps without touching them
Flat, rounded jaws on a springy one-piece frame: lift stamps by the margin without skin oil or fingernails touching the gum or the perforations, which is how philatelists keep them mint. The jaws have no sharp edges to crease paper.
Printing notes
8.6 cm³
Volume
10.6 g
Est. weight
292
Triangles
Print in PETG. Prints flat as a plate, no supports.