This has been a long, ongoing build. I’m putting together a custom CNC controller based on the MKS TinyBee running FluidNC, built into a custom aluminum chassis with proper heatsinks, clean wiring, and a set of custom boards and electronics. I’m using high‑end connectors and adding addressable lighting to keep everything both functional and polished. At the same time, I’ve been writing my own pendant firmware from scratch, which I plan to release as open source once it’s in a good place.

In my opinion, this is the easiest and most complete tutorial to walk you through building a large platform 3D printer and the Sketchup File is included for you to make any changes needed.. The Plastic Beast is a CoreXY Printer with a build platform of 440mm square. You can print 600mm or about 23 inches diagonal. Any level of user from novice to expert should gain something from my tutorial.

Its alive !

Building a CoreXY based 3D printer using primarily parts from China on eBay. Large 500mm frame.

Started with a Rigidbot Big Added a single flat glass bed Used a Smoothieboard clone driving DRV8825

Over 840 parts. Of whom around 450 are screws and nuts, more than 100 parts are printed on a 3D printer, the frame consists of about 60 components. There is nearly 40 electrical components connected with tens of meters of wires, most of them sleeved.