EJ20 Boxer Engine Model Kit

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  • Regular price $299.99


Combined with yet another of ericthepoolboy’s designs, this kit will let you get up close and personal with a 35% scale model of the EJ20 Boxer engine.  The model is fully functioning.  All the belts, pistons, and other engine parts move and work just like the real engine.  Keep in mind that this is still plastic after all, meaning no combustion – so don’t go putting fuel in this thing.

This kit includes three different options.  Please read each one carefully.

Full 3D Printed Kit:

Love the idea of assembling this fully functioning engine, but don’t have a 3D printer or the time to spend hundreds of hours 3D printing?  This is the kit for you.  It includes all the parts needed to assemble the cutaway model of the EJ20 Boxer engine, including all 3D printed parts and non-printed hardware (fasteners, magnets, bearings, etc.). 

  • Printed in five different colors
  • Newer cutaway model allows visibility into engine’s inner workings
  • Over 100 hours of 3D printing goes into each kit

Hardware Kit Only (3D PRINTER REQUIRED): 

This kit is for the true gearheads.  It contains only the non-printed parts required to assemble the 35% scale EJ20 Boxer engine.  To complete the project, you’ll need the plans and files available on this Thingiverse page. This kit is also compatible with the newer cutaway design. Kit includes:

  • Fasteners
  • Magnets
  • Bearings
  • Springs
  • Threaded rods
  • Closed loop timing belt
  • 500 RPM DC Geared Motor
  • Speed Controller
  • Electrical Connections
  • Power supply

Some previous experience printing and assembling ericthepoolboy’s engine designs is recommended prior to printing this design and purchasing this kit.  Buying this kit will directly support the creator and his future endeavors.

Hardware Kit With Filament Bundle (3D PRINTER REQUIRED):

This option contains everything from the Hardware Kit, as well as a bundle of premium Spider Silk 3D printing filament.  1KG each of Black, Gray, Red, and Yellow Spider Silk premium PLA is included ($40 in savings). 


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