3D render of the Rotating Desk Organizer: a white carousel with pen cups, a scissor slot and a tray on a dark base
Free 3D model

Rotating Desk Organizer

A lazy susan for your desk: three pen cups of different heights, a slot for scissors, a two-part tray for small things and a well in the middle for clips, on a base that turns at a touch. It runs on a ring of standard 6 mm airsoft BBs in two V-grooves, and a printed pin holds it together. Three printed parts, no supports.

  • 3printed parts
  • 15 × 15 × 12 cmassembled (L × W × H)
  • ≈ 0.3 kgfilament in total
  • 150 mmbed size needed for the base; the organizer is 110 mm tall
Download all files ZIP · 0.3 MB

Free for personal use under CC BY-NC 4.0: print it, remix it and share it with credit to Shapekit. Please don't sell the files or the prints.

Take it apart in 3D · Parts · How to build it

In 3D

Turn it, take it apart

Every part as you print it. Pick colours to see what your filament will look like.

The 3D model (1.2 MB) loads when you get here.

Preview colours

Organizer
Base
Pin

Drag to rotate · scroll or pinch to zoom

In the download

3 parts, ready to print

Every STL is already placed the right way up. Download them all at once, or one by one.

Base

The foot, with a V-groove race for the BBs, a low wall round the edge that hides them, the socket for the centre pin and four recesses underneath for rubber bumpers.

Size
150 × 150 × 13 mm
Print
Flat on its bottom, no supports. 20% infill makes it a little heavier and steadier.
Filament
≈ 88 g
STL 0.3 MB

Organizer

The part that turns: pen cups 104, 84 and 64 mm deep, a scissor slot, a two-part tray and a clip well, on a deck with the matching V-groove underneath.

Size
143 × 143 × 110 mm
Print
Upright, deck on the bed. No supports: the groove underneath has 45° sides.
Filament
≈ 203 g
STL 0.8 MB

Centre pin

A 12 mm pin that turns in the organizer and presses into the base, where four crush ribs grip it. Its head stops the top lifting, so the BBs stay in.

Size
18 × 18 × 16 mm
Print
Head down, no supports.
Filament
≈ 2 g
STL 57 KB
Also needed

Parts you buy

  • 57 standard 6 mm plastic airsoft BBs, any weight (they measure about 5.95 mm). 59 fit the race; leave a gap of one or two balls so they roll freely. 6 mm steel bearing balls work too.
  • Optional: four self-adhesive rubber bumpers, 10 mm across, for the recesses under the base.
Print settings

Slicer settings

0.20 mmlayer height
3walls
15%gyroid infill (20% for the base)
PLA or PETGmaterial

For a 0.4 mm nozzle. Filament amounts are estimates for these settings.

Assembly

How to build it

Print the parts

Nothing needs supports. Turn on elephant's foot compensation in your slicer, or lightly scrape the edges of the groove under the deck, so the balls roll freely.

Fill the race

Lay the base flat and drop 57 BBs into the groove. They fill it all the way round with a gap of one or two balls.

Set the top on

Lower the organizer straight down onto the balls so the groove under the deck settles over them, and turn it a little to let them find their place.

Press in the pin

Push the centre pin through the hole in the clip well and into the socket in the base. Press it home firmly with your thumb: four small ribs in the socket squash a little and grip it.

Give it a spin

The top turns freely and lifts only half a millimetre before the pin's head stops it, so the balls can't fall out. Stick the rubber bumpers under the base if you like.

Taking it apart

Push the pin up from underneath with a pen through the hole in the bottom of the base, then lift the top off over a tray to catch the balls.

Airsoft BBs are small enough to swallow: keep them, and the organizer while it's apart, away from small children.

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