Models Showcase: free 3D-printable organizers

By Krypto

Complexity

Multi-part assembly

Others Garden & plants

0

MAIN PURPOSE: Compost kitchen scraps right inside a raised bed through a worm tower

Instead of carrying compost to the plants, bring the compost to the plants. Bury the lower half of this tower in a raised bed, drop in some compost worms and feed it vegetable scraps through the lid. Worms come and go through the windows near the bottom, eating the scraps inside and leaving their rich castings out in the bed around the roots. The lid keeps flies and smells in, and one tower feeds roughly a metre of bed.

Printing notes

228.0 cm³

Volume

282.8 g

Est. weight

7,188

Triangles

It is 240 mm tall, so lower the height on a smaller printer. Bury the bottom half in the bed so the side windows are under the soil, add a handful of compost worms, and feed scraps through the lid. Prints as shown on its floor, no supports. Large holes in the walls may need supports or good bridging. The lid prints as a separate part, top down.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Bedroom & bathroom Health & medicine

0

Tissue in-and-out box

MAIN PURPOSE: Pull clean tissues from the top and post used ones into a flap bin on the side

Every cold ends with a mountain of used tissues on the bedside table. This box solves both halves of the problem: clean tissues pull out of the slot in the top, and used ones go straight through the swinging flap of the bin built onto its side, out of sight. The bin lid lifts off for emptying. CLEAN and USED are raised on the fronts, so nobody gets them mixed up at 3 a.m.

Printing notes

170.1 cm³

Volume

210.9 g

Est. weight

12,420

Triangles

Drop a folded stack of tissues into the main box under the slotted top; the bin flap swings in and the bin's lid lifts off to empty. Prints as shown on its floor, no supports. The added base's lid prints separately. Stacked parts are fused into one print.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Desk & office Paper & bookbinding

0

Roman wax-tablet notepad

MAIN PURPOSE: Write and erase notes on a wax tablet with a stylus, as Roman scribes did

Two thousand years before sticky notes, Romans wrote shopping lists and school sums on wax tablets: scratch letters into the wax with a pointed stylus, then smooth them away with the flat end and start again. Pour coloured beeswax into the tray, keep the stylus in its groove, and slip the lid on to protect it. Warm the wax with a hairdryer to wipe the whole page clean. Endlessly reusable, and oddly satisfying to write on.

Printing notes

136.1 cm³

Volume

168.8 g

Est. weight

7,076

Triangles

Melt beeswax with a little crayon or charcoal for colour and pour it 3 mm deep. Sharpen a chopstick to a point for the stylus. Prints as shown on its floor, no supports. The lid prints as a separate part, top down.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Others Tabletop gaming & play

0

Monty Hall three-door game

MAIN PURPOSE: Play the famous probability puzzle with three lidded boxes, one prize and two duds

You pick one of three doors. The host, who knows where the prize is, opens another door to show a goat, and asks: do you want to switch? Most people say it makes no difference. It does: switching wins two times out of three. Even mathematicians argued about it when it was published in 1990. Hide a prize in one of these three numbered boxes and test it at the table: play twenty rounds each way and the tally does not lie.

Printing notes

164.4 cm³

Volume

203.9 g

Est. weight

11,920

Triangles

Hide a sweet (the car) in one box and nothing (the goats) in the other two. Play 20 rounds sticking and 20 switching, and keep score. Prints as shown on its floor, no supports. The lid prints as a separate part, top down. The added bases' lids print separately.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Kitchen Food preparation

0

Square-egg press

MAIN PURPOSE: Turn a hot boiled egg into a perfect cube for lunch boxes and bento

A hot boiled egg is surprisingly soft. Peel it while it is still hot, drop it into this box and press the lid down over it: the lid squeezes the egg into the square chamber, and ten minutes in iced water sets it in shape. Out comes a cube with sharp corners that slices into square egg pieces for sandwiches, stacks in a bento and makes children ask how. It was a craze in Japan in the 1970s.

Printing notes

18.6 cm³

Volume

23.1 g

Est. weight

184

Triangles

Peel a medium egg while still hot, push it in, press the lid down and hold it with a rubber band; chill for 10 minutes in iced water. Prints as shown on its floor, no supports. The lid prints as a separate part, top down.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Kitchen Food storage

0

Ethylene ripening bell

MAIN PURPOSE: Ripen a hard avocado overnight by trapping a banana's ethylene under a bell

Ripe bananas give off ethylene, the gas that tells fruit to ripen. Under this bell it cannot escape. Put a hard avocado, pear, kiwi or peach on the lid with a ripe banana beside it, turn the bell over them and the fruit is ready in one or two days instead of a week. Flip it back over to store it. RIPEN is raised on the lid, which doubles as the plate.

Printing notes

380.4 cm³

Volume

471.7 g

Est. weight

2,848

Triangles

Print the bell open side up, as shown; in use the lid is the plate and the bell goes over it. Prints as shown on its floor, no supports. The friction-fit lid and its neck piece print separately; adjust Fit in the Lid tab if it binds.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Kitchen Baking & sweets

0

Shake-up ice-cream maker

MAIN PURPOSE: Make ice cream in ten minutes of shaking with ice and salt

No machine needed. Pour 200 ml of cream, a spoon of sugar and a drop of vanilla into the centre cup. Pack the 20 mm jacket round it with crushed ice and two big spoons of salt, screw the lid on, wrap it in a tea towel and shake or roll it across the floor for ten minutes. Salt drops the melting point of the ice to about minus 10 degrees, cold enough to freeze the cream as it churns. SHAKE is raised on the front.

Printing notes

274.5 cm³

Volume

340.3 g

Est. weight

5,112

Triangles

Food-safe PETG, 3 walls. Cover the centre cup with cling film before screwing the lid on, so no salt water gets in. 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.

AR view Open in app

Preview of Crisp-or-chewy cookie jar pair

By Krypto

Complexity

Multi-part assembly

Kitchen Baking & sweets

0

Crisp-or-chewy cookie jar pair

MAIN PURPOSE: Keep crisp cookies crisp and soft cookies soft in two sealed jars

Crisp and chewy cookies spoil each other in one jar: moisture moves from the soft ones to the crisp ones until they are all limp. These are two jars joined at the hip, each with its own lid, so their air never mixes. A silica sachet keeps the CRISP side snapping; a slice of bread in the CHEWY side keeps brownies and soft cookies soft for days, as the cookies take moisture from the bread.

Printing notes

358.1 cm³

Volume

444.0 g

Est. weight

14,860

Triangles

Food-safe PETG. Put a food-safe silica sachet in CRISP and a slice of bread in CHEWY; swap them every few days. Prints as shown on its floor, no supports. The friction-fit lid and its neck piece print separately; adjust Fit in the Lid tab if it binds. The added base's lid prints separately.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Kitchen Food storage

0

Banana bodyguard case

MAIN PURPOSE: Carry a banana in a curved case so it never bruises in a bag

A banana goes into a bag perfect and comes out brown and squashed. This case is shaped like the banana itself, with a curved body and a slip-on lid, so it rides in a backpack or lunchbox without a single bruise. Three small vents in the floor let it breathe. BANANA is raised on the lid, in case anyone was wondering.

Printing notes

88.9 cm³

Volume

110.2 g

Est. weight

4,872

Triangles

Fits most medium bananas. Print in yellow; PETG for the lunchbox. Prints as shown on its outline, no supports. The lid prints as a separate part, top down.

AR view Open in app

By Krypto

Complexity

Multi-part assembly

Desk & office Office tools

0

Status-cube pen pot

MAIN PURPOSE: Turn a pen pot on its turntable to tell colleagues if you are free

Headphones on does not always mean do not disturb. This pen pot turns on its own turntable base, and each side says something different: FOCUS in red, OPEN in green, BREAK in gold and CALL in blue. Give it a spin so the right word faces the office, and colleagues know whether to come over or send a message instead. It holds your pens either way.

Printing notes

78.8 cm³

Volume

97.7 g

Est. weight

17,332

Triangles

Print the pot and the turntable ring; drop a few ball bearings or a dab of grease between them for a smooth spin. Prints as shown on its floor, no supports. The turntable ring prints separately and runs on 6 mm BBs.

AR view Open in app