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DIY 3D Printed Dremel CNC
Awesome yet simple project! I've designed a 3D printed adapter that connects two bottles to make tornadoes: https://www.thingiverse.com/thing:3270280. It's not 100% leak free, but if you print with 100% infill and over extrude a little, it should be very water tight.
Molding Bismuth for a Levitator
Bismuth Magnet LevitatorView Instructable »