Bolted Shut: Ultimate Gift Card Prank Holder

Are you tired of just handing over a gift card? Make them earn every penny with the "Bolted Shut" Gift Card Trap!

This is a heavy-duty prank holder designed to lock a standard gift card behind 20 separate M6 bolts. For an extra layer of frustration, this design uses Nylon Lock Nuts embedded directly into the print, meaning the recipient can't just spin the bolts off, they’ll need a wrench and some serious patience.

Key Features:

• True Hardware Lock: Uses 20x 20mm M6 bolts for a rugged, industrial feel.

• Nyloc Security: The nuts are captive inside the plastic, making them impossible to remove without destroying the case or using tools.

• The Decoy Strategy: Includes space for 20 optional external nuts to trick the recipient into thinking it's an easy fix before they hit the internal lock nuts.

Hardware Required:

• 20x M6 x 20mm Bolts

• 20x M6 Nylon Lock Nuts (To be embedded mid-print)

• 20x Standard M6 Nuts (Optional "Decoy" nuts for the exterior)

Assembly Instructions:

To make this work, you must pause your print to embed the hardware:

1. Slice the model and identify the layer where the hex-nut pockets are covered.

2. Add an M600 (Filament Change) or a Pause command at that layer height.

3. When the printer pauses, drop the M6 Nylon Lock Nuts into the slots.

4. Resume the print to seal them in forever!

Recommended Print Settings:

• Nozzle: 0.6mm (0.4mm works fine, but 0.6mm is faster)

• Layer Height: 0.3mm

• Walls: 4 Perimeters (For structural strength)

• Infill: 50% Gyroid (Strong and prevents "pillowing" on top of the nut pockets)