Antigravity Pendulum

thingiverse

This is a simple inverse magnetic "pendulum" that utilizes a powerful embedded magnet to create the illusion of a levitating object. Attach the weight metal part using a thin nylon chord, fishing line, etc., and insert it into the lower hole, securing it with an M3 screw or equivalent. The 30x10 NIB magnet inside the upper part will generate a magnetic field strong enough to keep small ferromagnetic metal objects suspended in mid-air when fixed at an appropriate distance from the fishing line. To print this design successfully, you'll need software and a printer that can pause printing at a custom height, allowing you to insert the magnet into the pendulum at mid-print. Additionally, you'll need to add a 12mm steel ball to the weight cube. It's essential not to use support material for printing. Alternatively, you can repurpose an old Newton cradle by using its steel balls, which often come with a pre-drilled hole for the fishing line. If you don't have a 30x10mm magnet, you can substitute it with any other size and adapt the design using plasticine or an adapter. You can also modify the included CAD sources, as this design is quite simple. Keep your visitors amazed by showcasing this incredible levitating effect! To take your pendulum to the next level, try adding a 10x10x5 mm magnet weight model, which has been added to the design. To do so, pause your print mid-way and insert the magnet. If you have a ferromagnetic nozzle, secure it with a drop of glue before continuing printing. This upgrade allows for an increased distance from the main magnet, making the levitating effect even more impressive.