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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: Teach children to lace and tie shoes
A flat shoe with six eyelets in two rows: children practise criss-cross lacing and the bunny-ears bow on the table, with both hands free and the laces facing them, instead of bending over a real shoe on a moving foot. Use a bright two-colour lace so left and right are easy to follow.
Printing notes
29.0 cm³
Volume
35.9 g
Est. weight
1,244
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Build large frames from drinking straws
Closed 32 mm cubes with a 12.5 mm socket on all six faces: push in 12 mm bubble-tea straws, cut to any length, and build frames, towers and domes that are light, cheap and big enough to sit inside. Straws snip with scissors, so children design their own lengths.
Printing notes
4.8 cm³
Volume
5.9 g
Est. weight
1,128
Triangles
Print twenty or more. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Practise hand-eye coordination with a catch game
The old bilboquet: swing a ball on a cord up into the 59 mm cup. The cord runs up the hollow handle and out through the cup floor, so the knot sits safely inside the handle end and nothing snags on a swing. A table-tennis ball keeps it gentle indoors.
Printing notes
50.9 cm³
Volume
63.1 g
Est. weight
1,696
Triangles
Add 50 cm of cord and a table-tennis ball. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Build a balloon-jet racing car
A light open chassis with axle holes for two drinking straws and a nozzle hole in the back: add skewers, four bottle-top wheels and a balloon taped to a straw, and the car races across the floor on its own jet. Children can tune it by changing the nozzle or the wheels.
Printing notes
18.6 cm³
Volume
23.1 g
Est. weight
948
Triangles
Add straws, skewers, bottle tops and a balloon. Prints as shown on its floor, no supports.
MAIN PURPOSE: Weave narrow bands and straps by hand
A Sami-style heddle with nine slots and eight holes: thread the warp alternately and lift or lower the heddle to open the two sheds, weaving narrow bands, straps and belts on the lap with the warp tied to a belt. Seventeen warp ends make a 2 to 3 cm band.
Printing notes
26.7 cm³
Volume
33.1 g
Est. weight
1,914
Triangles
Print in PETG; smooth the slots with fine paper. Prints flat as a plate, no supports.
MAIN PURPOSE: Scribe level lines round pots on a banding wheel
Push a pencil through one of three pairs of holes so its tip touches the pot, then turn the banding wheel: the line comes out perfectly level all the way round, ready for wax resist, a glaze dipping line or a decoration band. The foot behind the tower stops it tipping.
Printing notes
10.0 cm³
Volume
12.4 g
Est. weight
1,208
Triangles
Prints as shown on its floor, no supports.
MAIN PURPOSE: Weave patterned bands with turning cards
A pack of 64 mm square cards with a hole in each corner labelled A to D: thread four warp ends through each card, then turn the stack forwards or backwards to twist the warp and weave patterned bands. Printed cards stay flat and smooth where cardboard frays and catches threads.
Printing notes
7.9 cm³
Volume
9.8 g
Est. weight
5,420
Triangles
Print 20 or more. Prints flat as a plate, no supports.
MAIN PURPOSE: Dip several pairs of taper candles evenly
Lay the comb across the dipping can and drop a looped wick into each V notch, where the slit pinches it: five pairs of tapers hang at an even 30 mm spacing, so they never touch, and every dip goes to the same depth. Lift the whole comb to dip and hang it on two hooks to cool.
Printing notes
20.4 cm³
Volume
25.3 g
Est. weight
716
Triangles
Print in PETG or ASA; keep it away from the wax heat. Prints flat as a plate, no supports.
MAIN PURPOSE: Mark round strap ends and first holes
Four tongues for 20, 25, 32 and 38 mm straps, each with a true half-round end and a centre notch: lay the strap under the right tongue, scribe round the end and mark the first hole at the notch. Belts, watch straps and bag handles get identical ends every time.
Printing notes
19.9 cm³
Volume
24.6 g
Est. weight
11,612
Triangles
Prints flat as a plate, no supports.
MAIN PURPOSE: Tell keys apart by touch
One tag carrying three small rings, each beside a different edge texture: notches, bumps or a smooth round end. Put the house, car and work key on their own rings and find the right one by touch in the dark or without looking, a help for everyone and essential for blind users.
Printing notes
4.4 cm³
Volume
5.4 g
Est. weight
888
Triangles
Add three small split rings. Prints flat as a plate, no supports.