DIY pulsar

thingiverse

Update 29/01/20: One of the internal cones in DIY_pulsar_2.stl was slightly off center; now fixed. 3D print and assemble a pulsar model. To do this, print two half-spheres with radiation cones, plus a central rotation axis. Drill small holes around magnetic poles to allow insertion of magnetic field lines (scaled for 1.75mm PLA filament, but also works with brim offcuts). A pulsar is an incredibly dense dead star that's only about 10km wide. They spin hundreds of times per second and have extremely strong magnetic fields. Powerful radio waves are emitted from the magnetic poles (which may or may not be aligned with the rotation axis). As a pulsar spins around, if one of its beams points towards Earth, we see a pulse – like a cosmic lighthouse. This model was made with Tinkercad. You can edit it online at https://www.tinkercad.com/things/lEjBBDeRUDU