Gaussian Bearing Launcher

thingiverse

The Bearing Launcher works with magnets and physics to shoot a steel bearing and features a self-aligning, three-chambered revolving ejector for easy retrieval. Watch this video tutorial (http://www.youtube.com/watch?v=MdWo_VIjpug) to learn how it works. For 3D printing instructions, use 1 extra shell and 10-15% infill for an ideal fit of components. If your Z-axis is not calibrated correctly, you may need to file off the first few layers on all inside circumferences. Follow these assembly steps: mark the top of each magnet with a sharpie, press fit one M3 nut into Part2, stack and align small magnets in Part4, thread M3 bolt through Part4 and Part2, and press the big magnet into Part2, ensuring proper polarity. Materials needed include five printed parts, stainless steel bearings, neodymium magnets, an M3 bolt, an M3 nut, and two 1/4" aluminum rods. Find these materials on Amazon for easy access. For suggestions of improvements, imagine an engine-driven, fully automated rapid-fire launcher with zombie-killing bearings - now that's a challenge! This design is by C. Boynton.