The Midnight Web Wheel – Halloween Ferris Wheel with Chomping Skulls (crank, no supports)

Optional TPU parts

• 42 – TPU gear keeper band (recommended): a small loop around the fixed axle and the pinion shaft – it keeps the gears engaged so they never skip, and it is hidden behind the ring gear.

• 43 – TPU belt around both gears (optional, cosmetic): a smooth belt that hugs the ring gear and the pinion.

• Print in TPU 95A, slowly (20–25 mm/s). Fit it before mounting the back tower.Beyond seven hills and one very foggy meadow lies the little village of Bonehollow. When the clock strikes midnight on Halloween, Granny Weaverly – the oldest spider in the land – turns her finest web into a Ferris wheel… and the whole graveyard climbs aboard.

Turn the bone crank and watch it come alive

• 🕸 Spider-web wheel (Ø 189 mm) with sagging, spooky threads

• 🦴 Real-bone towers and a bone crank – 6:1 gear drive (16 → 96 teeth) for a slow, smooth ride

• 💀 4 skulls with real hinged jaws – they hang open… until zombie Frank's hand at the bottom snaps them shut: clack!

• 🎃 2 jack-o'-lantern heads that chomp the same way

• ⚰ 2 coffins – the zombie hand pushes a pin, the lid lifts and a tiny skull peeks out

• 🕷 Spider with a glowing skull abdomen on the fixed hollow axle (an LED wire runs through the axle – nothing tangles)

• 🪦 Graveyard base with tombstones, glowing pumpkins and a mausoleum that holds the crank shaft

✅ Everything prints WITHOUT SUPPORTS

All STL files are already oriented for printing. Ten 3MF plates for a 220 × 220 mm bed are included, grouped by color.

Print info

• Tested on Creality Ender-3 V3 KE (220 × 220). The 3MF plates open in PrusaSlicer, Bambu Studio, OrcaSlicer and Creality Print.

• PLA, about 240 g in total, about 10 hours of printing

• 0.20 mm layers for skulls and mechanics, 0.24 mm with 100 % infill for the web, bones and gears, 0.28 mm for the base

• Suggested colors: ivory web & bones (with a brown patina!), glow-in-the-dark skulls, orange pumpkins, black coffins and base

You will also need

• paper clips (skull jaw hinges) and a bit of 1.75 mm filament (pumpkin and coffin hinges)

• super glue, a lighter (to slightly melt pin and rod ends), sandpaper, a white marker for details

• optional: battery LED lights (tea lights or a small LED string)

Included

• 33 numbered STL files (the quantity is in the file name) and 10 × 3MF plates

• A step-by-step LEGO-style assembly guide (PDF) with a parts catalog and print times – plus the full Bonehollow story 🕯

Happy Halloween! 🎃