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24 Cool Things to 3D Print with Moving Parts

Want something fun to 3D print that still earns its place on the desk? Each of these 24 storage boxes has a working mechanism: carousels, swing-out tiers, roll-top doors, folding walls, crank dispensers and sliding lids. They are grouped by how they move. Multi-part models need assembly, and a few need extra screws or bearings, as marked on each card.

24 models, updated October 2026. Default-size STL and STEP kits are free to download; sign in to adjust size and dividers in the studio.

Spin & Swing Out

Turn it and the compartment you want comes to you.

Closed Bottle Turntable model preview, default size 240 × 264 × 54 mm, 11 partsFree download

Closed Bottle Turntable

Four bearings carry a jar carousel so back bottles rotate to the front.

240 × 264 × 54 mm
11 parts
STL + STEP | MillimetersCustomizable →
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Crank & Dispense

Turn, push or slide to release one portion at a time.

Dice and Marker Cup model preview, default size 95 × 100 × 85 mm, 3 partsFree download

Dice and Marker Cup

A dice shaker cup whose sliding lid is locked by a turn bar.

95 × 100 × 85 mm
3 parts
STL + STEP | MillimetersCustomizable →
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Travel-Limited Twin Compartment Portion Box model preview, default size 180 × 90 × 32 mm, 7 partsFree download

Travel-Limited Twin Compartment Portion Box

A captive sliding lid that only ever exposes one of two cells.

180 × 90 × 32 mm
7 parts
STL + STEP | MillimetersCustomizable →
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Single Lid-Off Position Pinned Compartment Box model preview, default size 160 × 160 × 44 mm, 7 partsFree download

Single Lid-Off Position Pinned Compartment Box

Pull the pin and turn the indexed disc to bring each cell round; the lid lifts off at one position only.

160 × 160 × 44 mm
7 parts
STL + STEP | MillimetersCustomizable →
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Fold, Roll & Flip

The way they open is the show.

Slide & Drawer

Sliding lids and drawers that run on printed rails.

Before you print

  • Most mechanism models have several parts; check the part count and assembly notes before printing.
  • Clearance decides how smoothly things turn or slide, so print a fit test first.
  • Models marked “Extra hardware” need screws, nuts or bearings listed on the model page.