My Homemade CoreXY 3D Printer Build (Under $100 Budget)

Hi everyone!

I wanted to share my homemade CoreXY 3D printer that I’ve been building from scratch over the past few months.

The goal was to build a capable CoreXY machine on a tight budget (under $100) using commonly available parts while documenting every step of the process. The printer uses an Arduino Mega + RAMPS 1.4, GT2 belt system, NEMA 17 stepper motors, and a custom steel frame.

Some specifications:

  • CoreXY motion system
  • Built for less than $100

I’ve uploaded a complete build video showing the design, assembly, wiring, and first successful prints.

:movie_camera: Video:

I’d really appreciate any feedback or suggestions for improving the design. If you’ve built a CoreXY printer yourself, I’d love to hear what changes or upgrades you’d recommend for future versions.

Thanks for taking a look!

The printer design which I would really like to see would be one where height is minimized and the XY dimensions, esp. X are maximized.

The thing which I most struggle with when printing in terms of dimension are Gridfinity baseplates — I’d dearly love to see a printer which would fit into an old Samsonite suitcase or fit beneath a desk or onto a wide top shelf which I could set up to do nothing but print single-piece baseplates.