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Electron - Command Module for Proton & Neutron

3D model description

The Electron is a housing for the electronics, extruder motor, and filament of the Neutron and Proton, the open source 3D printers designed by Layer One, the creator of Atom 3D Printers.

Link to Proton:
Link to Neutron:

While the RepRap project produced some functional printers, it was clear that nobody had intended to produce something for the desktop of the discerning designer. That’s where Layer One’s Proton, Neutron, and now Electron come in. If you’re an open-source advocate, a tinkerer, and a designer with an eye for aesthetics, you’ll want one of these on your desk.

All the printed parts of Electron are right here. Electron was built in OnShape. Log in to remix your own version of it, it’s free as long as you share what you have made. Visit our website for the BOM, CAD files, assembly guide and everything else.

Neutron and Proton Website :

Atom Website : /
Fanpage :
Instagram :
Group :

  • 3D model format: STL and ZIP



We are a close-knit startup company of industrial designers and engineers who've designed an affordable and professional grade delta 3D printer Atom 2.5 EX. We're focused on quality and constant improvement. We are excited to share with other makers some of the stuff we've made!



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