Magnetic Feynman Diagrams for QED
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Feynman diagram vertices that you can build diagrams from and stick them to whiteboards.
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Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Attribution
These are 3D-printable vertices for Feynman diagrams in QED. They use magnets to stick to whiteboards or other metallic surfaces (do you want Feynman diagrams on your fridge?). The leptons can also magnetically stick to the anti-leptons. Since the photons are non-directional, they don't use magnets to stick together.
The parts should be pretty simple to print, you only need support for the underside of the lepton/antileptons. The magnets used are round, with a 4mm radius and 2mm height. Put them into arrows of all leptons you print in the same way, and reverse for all antileptons so you can connect any with any other. I glued the magnets in with a tiny drop of glue.
To connect the three parts together, use a 12mm M3 screw and a hex nut. Sadly, the parts can't be rotated through each other, so to be able to make more diagrams, make some with the lepton and antilepton lines reversed (see cover photo).