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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

Preview of Leeuwenhoek ball-lens microscope
By Krypto
Complexity
Simple
MAIN PURPOSE: See cells with a single glass bead lens
A slide-sized plate with seats for a 2 mm and a 3 mm glass bead, the trick Antonie van Leeuwenhoek used in the 1670s: tape a specimen to the back, hold the bead to your eye and see cells at up to 150 times, with a lens that cost almost nothing.
AR view Open in app
Preview of Eureka overflow can for rock density
By Krypto
Complexity
Simple
MAIN PURPOSE: Measure rock volume and density by displacement
Fill the can until water runs from the spout, lower in a rock on a thread and catch the overflow in a measuring cylinder: that is the rock volume. Divide its weight by it and pupils can tell granite from basalt from a lump of pyrite by density alone.
AR view Open in app
Preview of Newton colour wheel spinner
By Krypto
Complexity
Simple
MAIN PURPOSE: Show that the spectrum colours mix to white
Colour the seven ribbed sectors red, orange, yellow, green, blue, indigo and violet, push a pencil through the centre and spin it like a top: the colours blend into a pale grey white, Newton's proof that white light is all the colours together.
AR view Open in app
Preview of Aquarium stem-plant anchor ring
By Krypto
Complexity
Medium (set)
MAIN PURPOSE: Hold stem-plant cuttings down in the gravel
Push a bunch of stem-plant cuttings through the centre hole and bury the flower-shaped ring in the gravel: the cuttings stay planted while they root through the side holes, instead of floating up every time the fish dig or you vacuum.
AR view Open in app
Preview of Aquarium pest snail trap
By Krypto
Complexity
Multi-part assembly
MAIN PURPOSE: Remove pest snails from a tank without chemicals
Put a slice of blanched courgette inside, close the lid and leave it on the gravel overnight: pest snails crawl in through the low slots to feed, and in the morning you lift the whole trap out with them inside. No chemicals that harm shrimp.
AR view Open in app
Preview of Reptile humid hide rock
By Krypto
Complexity
Simple
MAIN PURPOSE: Give a reptile a humid hide for shedding
A rock-shaped shell with a 50 mm entrance in its crown: pack it with damp sphagnum moss and geckos and snakes get the humid retreat they need to shed cleanly. It has no floor, so you lift the whole rock to mist and check the moss. Print it as shown, then turn it over so the floor becomes the top.
AR view Open in app
Preview of Filter intake baby-shrimp guard
By Krypto
Complexity
Advanced
MAIN PURPOSE: Stop baby shrimp being sucked into a filter
Slide the slotted sleeve over a 16 mm filter intake: the fine slots on all four sides still let water through freely, but baby shrimp and fry can no longer be sucked into the filter. Cleans with a shake under the tap.
AR view Open in app
Preview of Dog nail scratch board with treat box
By Krypto
Complexity
Multi-part assembly
MAIN PURPOSE: Let a dog file its own nails
Glue a sheet of coarse sandpaper into the tray and hide a treat in the lidded box at the end: the dog learns to dig at the board for it and files its own nails down, with none of the clipping stress for either of you.
AR view Open in app
Preview of Tipping plate balance game
By Krypto
Complexity
Medium
MAIN PURPOSE: Play a stacking and balancing game
A 160 mm plate balanced on a 14 mm post: players take turns placing coins, meeples or dice anywhere on it, and whoever makes the rim touch the table loses. The small foot lets the plate stay level only while the load is centred, so every piece shifts the risk for the next player. Print it as shown, then turn it over so the floor becomes the top.
AR view Open in app
Preview of Stackable flying altitude risers
By Krypto
Complexity
Simple (set)
MAIN PURPOSE: Show how high a flying miniature is
A 25 mm miniature base drops into the top of a riser and each riser nests into the next by its grip foot: every level lifts the model 12 mm and stands for 10 ft of altitude, so flying creatures show their height at a glance and range checks become simple counting instead of notes on paper.
AR view Open in app

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