We want our 3D food printer (Pinya2) to print using bigger loads. Currently the main limitation for it is having magnetic joints sized for smaller load (<400gr).

This post is about our new magnetic joints design that must hold up to 1kg load.

For this challenge, 3 parts need to be redesigned. Carriages, arms and end effector. This modifications are due to the fact we need to feet our food printer with bigger and STRONGER magnets.

Until now we were working happily with 8mm (diameter) x 5mm (thickness). Moving to a 10x10x10mm neodymium magnet cubes. Might be and overkill will see~~

For our previous designs magnets where insert into the arm ends. Now we are swapping this configurations. Balls with epoxied screws will be insert into the carbon fiber rods using wall plugs (it works!!). You can read more about how we build this at our instructables page.

And to end some pics 🙂

Delta magnet joint end-effector

Delta magnet joint carriage

 Again if you want to see more details, please check our instructables!