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Models Showcase

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

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Preview of Tap-powered paddle wheel
By Krypto
Complexity
Simple
Others Kids & play
0
Tap-powered paddle wheel
MAIN PURPOSE: Explore water power under a running tap
Eight paddles round a hub: push a chopstick through the centre, hold both ends under a running tap or a jug and the wheel spins, faster as the stream grows. Children discover cause and effect, then lift it higher or lower to see how the drop changes the speed.
Printing notes
24.1 cm³
Volume
29.9 g
Est. weight
1,200
Triangles

Print in PETG for water play. Prints flat as a plate, no supports.

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Preview of Cardboard den corner clips
By Krypto
Complexity
Simple (set)
Others Kids & play
0
Cardboard den corner clips
MAIN PURPOSE: Join cardboard sheets into dens and buildings
An L-shaped clip with a 4.5 mm slot down each arm: push two sheets of corrugated cardboard into it at right angles and they stand on their own, so a few delivery boxes become a den, a shop or a castle with no tape. Clips pull off and the cardboard stays reusable.
Printing notes
33.3 cm³
Volume
41.3 g
Est. weight
796
Triangles

Print eight or more; PETG grips best. Prints as shown on its outline, no supports.

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Preview of Twist-lid busy board
By Krypto
Complexity
Multi-part assembly
Others Kids & play
0
Twist-lid busy board
MAIN PURPOSE: Help toddlers practise twisting lids open
Three 50 mm jars stand on a board, each with a different screw lid: a knob, a bar and a ring. Toddlers learn the twisting motion with three grips, and hiding a small toy in one jar turns it into a game. Every part is big enough to be no choking risk.
Printing notes
204.5 cm³
Volume
253.6 g
Est. weight
11,992
Triangles

Prints as shown on its floor, no supports. The added bases' lids print separately.

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Preview of Slotted building discs
By Krypto
Complexity
Simple
Others Kids & play
0
Slotted building discs
MAIN PURPOSE: Build open-ended models from one interlocking part
40 mm discs with eight radial slots: any two push together at any slot, in line or crossed, so a pile of identical pieces becomes spheres, chains, animals and towers. One shape, endless joints; print dozens in mixed colours from leftover filament.
Printing notes
2.3 cm³
Volume
2.8 g
Est. weight
592
Triangles

Print 50 or more; 2 mm thick for a snug slot fit. Prints flat as a plate, no supports.

AR view Open in app
Preview of Finger-tracing letter tile
By Krypto
Complexity
Simple
Others Kids & play
0
Finger-tracing letter tile
MAIN PURPOSE: Teach letter shapes by tracing them with a finger
A tile with one large letter engraved 2 mm deep: the groove guides a fingertip along the correct path, so pre-writers learn the shape by touch before they hold a pencil, the Montessori way. Change the letter for each tile of the set.
Printing notes
23.9 cm³
Volume
29.7 g
Est. weight
5,292
Triangles

Prints as shown on its floor, no supports.

AR view Open in app
Preview of Balloon-powered car chassis
By Krypto
Complexity
Medium
Others Kids & play
0
Balloon-powered car chassis
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.

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Preview of Leaky stacking pour cups
By Krypto
Complexity
Simple (set)
Others Kids & play
0
Leaky stacking pour cups
MAIN PURPOSE: Explore flow and draining in bath play
Bath cups that leak on purpose: a heart, a large hole and a pinhole in the floor pour three different streams, so toddlers see that a bigger hole empties faster. The grip foot lets the cups stack into a tower that drains from cup to cup.
Printing notes
31.1 cm³
Volume
38.6 g
Est. weight
1,364
Triangles

Print three; PETG for the bath. Prints as shown on its floor, no supports.

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Preview of Sound-matching shaker pairs
By Krypto
Complexity
Multi-part assembly
Others Kids & play
0
Sound-matching shaker pairs
MAIN PURPOSE: Train listening by matching shaker sounds
Print six capsules, fill pairs with rice, lentils and beads, and glue the screw lids shut: the child shakes and listens to find the three matching pairs, and the letters engraved underneath confirm the answer. A Montessori listening game that costs pennies.
Printing notes
20.4 cm³
Volume
25.3 g
Est. weight
2,664
Triangles

Print six; glue the lids once filled. Prints as shown on its floor, no supports. The threaded lid and its neck piece print separately; adjust Fit in the Lid tab if it binds.

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Preview of Paper-plane rubber-band launcher
By Krypto
Complexity
Simple
Others Kids & play
0
Paper-plane rubber-band launcher
MAIN PURPOSE: Launch paper aeroplanes with a rubber band
Loop a rubber band over the notch at the tip, hook it under a paper plane's fold or a paperclip nose, pull back and let go: planes fly three times further and straighter than from a hand throw, so children can test which fold really flies best.
Printing notes
15.9 cm³
Volume
19.7 g
Est. weight
152
Triangles

Print in PETG. Prints flat as a plate, no supports.

AR view Open in app
Preview of Bubble wand
By Krypto
Complexity
Simple
Others Kids & play
0
Bubble wand
MAIN PURPOSE: Blow soap bubbles
Dip the ring in bubble mixture and wave slowly for big bubbles; the long handle keeps sticky hands clear.
Printing notes
12.0 cm³
Volume
14.9 g
Est. weight
348
Triangles

Prints flat as a plate, no supports.

AR view Open in app

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