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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: Turn a crank to make cam-driven figures move
The frame of a cam automaton: push an 8 mm dowel through the side holes as a camshaft, thread on three Helix Spindle discs printed at half size, and drop 6 mm dowels through the top holes so they ride on the cams. Turn the crank and the rods bob in sequence, ready to carry paper or printed figures.
Printing notes
82.9 cm³
Volume
102.8 g
Est. weight
948
Triangles
Print open side down; 8 mm and 6 mm dowels. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Keep a soap bar dry and drain it off a leaf tip
A soap dish drawn from a rainforest leaf. Rainforest leaves end in a long drip tip that sheds water so the blade dries fast; here three short cross veins lift the bar off the floor, water runs round them into the narrow tip and drips out of the hole at its end. Set it on the basin rim with the tip over the bowl.
Printing notes
23.1 cm³
Volume
28.6 g
Est. weight
1,124
Triangles
PETG. Print flat.
MAIN PURPOSE: Hold pens of eight sizes apart on a phyllotaxis spiral
A pen pot whose top is a sunflower head: eight holes spiral out at 137.5 degrees, the angle plants use to pack seeds without gaps, and they grow from 7 mm for fine liners to 16 mm for brushes. Every pen gets its own hole, so tips never clash and the mix of sizes still packs tightly. Print it as shown, then turn it over so the floor becomes the top.
Printing notes
78.6 cm³
Volume
97.5 g
Est. weight
2,008
Triangles
Prints in one piece; the pens rest on the desk inside. Print floor-down as shown, then turn it over to use it.
MAIN PURPOSE: Stand a flute or recorder upright on its foot joint
A stand for a flute or alto recorder rooted like a rainforest kapok tree. Six plank buttresses flare from the trunk, so a tall, top-heavy instrument stands on a wide footprint that weighs little; the 17 mm peg goes up inside the foot joint and the collar takes its rim.
Printing notes
61.4 cm³
Volume
76.1 g
Est. weight
2,740
Triangles
PETG or PLA; planks and peg print solid. Prints as shown on its outline, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Stand hot pans on lily-pad ribs
A trivet built like the underside of a giant Amazon water lily. Victoria pads carry a child on a thin leaf because twelve radial ribs and rings of cross veins stiffen it; here the same ribs stand up, so a hot pan touches only their edges and air runs underneath.
Printing notes
143.6 cm³
Volume
178.1 g
Est. weight
1,928
Triangles
PETG or ASA for hot pans. Prints as shown on its floor, no supports.
MAIN PURPOSE: Stack canisters whose floors are each other’s lids
Stacking canisters that work like bamboo. In a culm each node is a wall that seals the section below; here each segment carries its node on the bottom, so the floor of one segment is the lid of the next and the spigot under it locates in the mouth below. Stack loose teas, spices or beads into one green column.
Printing notes
55.5 cm³
Volume
68.9 g
Est. weight
2,040
Triangles
PETG. Print several; the top one is a short cap. Prints as shown on its floor, no supports. Stacked parts are fused into one print.
MAIN PURPOSE: Stand a place card or photo in a stone fissure
A place card holder modelled on lithops, the living stones of southern Africa: two fleshy lobes split by a fissure where new leaves grow. The fissure is the slot, so each guest card appears to sprout from the stone, and the open lobes take a few pebbles for weight or a sugared almond for each guest.
Printing notes
18.8 cm³
Volume
23.3 g
Est. weight
1,332
Triangles
Matte PLA. Print a set. Prints as shown on its outline, no supports.
MAIN PURPOSE: Hold an avocado stone over water to sprout
A collar for growing an avocado from its stone without toothpicks. Rest the ring on any glass 70 to 85 mm across, press the stone into the centre pointed end up and the three tongues grip it with its base in the water. The slit lets the ring flex as the stone splits and the root grows.
Printing notes
15.8 cm³
Volume
19.6 g
Est. weight
288
Triangles
PETG. Print flat.
MAIN PURPOSE: Watch a slime mould solve a maze
A maze for the slime mould that out-planned Tokyo’s railway engineers. Pour a thin layer of agar, put a crumb of Physarum at the start and oat flakes at the finish, and close the lid; over a few days the yellow mould explores every lane, then withdraws from the dead ends and leaves one vein along the shortest route.
Printing notes
79.8 cm³
Volume
99.0 g
Est. weight
7,864
Triangles
PETG; clean with alcohol before pouring agar. Prints as shown on its floor, no supports. The lid prints as a separate part, top down.
MAIN PURPOSE: Give climbing house plants a trunk to root into
A moss pole that behaves like a tree trunk for monsteras and philodendrons. Fill the square tube with damp sphagnum; aerial roots find the vertical slots and grow in. Each segment threads onto a bamboo cane through the floor, so the pillar grows with the plant one section at a time.
Printing notes
10.9 cm³
Volume
13.5 g
Est. weight
18,376
Triangles
PETG. Print upright; a 16 mm cane. Prints as shown on its floor, no supports.