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Neutron - Open Source 3D Printer

Creation's quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

Neutron is one of two open source 3D printers designed by Layer One, the creator of Atom 3D Printers (Link to Proton:

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 and Neutron 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 the printer is right here. Neutron was built in OnShape. Log in to remix your own version of Neutron, 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 Website :

Atom Website : /
Fanpage :
Instagram :
Group :

3D printing settings

Atom 2.5 EX



0.2mm Layer Height

3 Loops, 15% Infill Minimum

3D printer file information

  • 3D design format: STL and ZIP Folder details Close
    • Neutron_-_Base.stl
    • Neutron_-_Cart.stl
    • Neutron_-_Effector.stl
    • Neutron_-_Effector_Cover.stl
    • Neutron_-_Effector_CoverE3D.stl
    • Neutron_-_Effector_E3D.stl
    • Neutron_-_Motor_Holder.stl
    • Neutron_-_Rod.stl
    • Neutron_-_Top.stl
    • Neutron_Plunger_set.stl

    Learn more about the formats

  • Last update: 2017/03/10 at 15:04
  • Publication date: 2017/03/07 at 13:54




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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