Turtle Coaster with moving limbs

🐢 3D Printed Turtle Coaster

A fun 3D printed coaster with a simple moving feature.

Place a mug or glass on the shell and the turtle’s head, legs and tail lift up together. Remove the mug and it returns back down again. No electronics or complicated parts — just a bit of built-in mechanical movement.

🔧 Details
Multi-part 3D printed design
Head, tail and all four legs move together
Works using the weight of the parts (spring optional, usually not required)
Central space allows a small spring to be added if using lighter materials
Twist-lock style shell keeps everything together when lifted

Parts can be removed if needed

⚠ Assembly note:
Place the shell on first, then insert the limbs, head and tail.

🎨 Custom Options
Optional shell pattern insert

Two head versions (integrated eyes or separate glue-on eyes)
Choice of colours

☕ Use
Ideal for desks, coffee tables, or just something a bit different.
Suitable for standard mugs and cups.

🖨 Printer Settings (Important)
Best printed in PETG for strength, weight and heat resistance

Shell and base: 5–20% infill
Limbs, head and tail: 100% infill (important for correct movement)
Shell: print upside down, no supports or brim required
0.4 mm nozzle / 4–5 walls / 0.20 mm layer height

Optional pattern piece presses into the top shell channel
Small spring (approx. 10–12 mm) can be added in the centre if desired

⚠ Safety
This is a novelty coaster. Please take care when placing hot drinks on it.