- Mark Rehorst's 3D printing and printer design
This is one of the best CoreXY printers I have ever seen: huge, precise and well detailed on each single mechanical part, this seems the way to go - How to make mini CNC plotter 2D using scrap DVD
Small, clean and cheap Plotter/cnc with spare scap parts from savaged DVD drives, there're a lot of them but this one seems really clean and accurated - From IKEA Moppe to 3D Printer
Forget about Moppe but building phases and execution are outstanding. Really well crafted device with interesting tips on construction and hints for getting ready made parts for it
- Make Your Own DIY CNC
https://www.instructables.com/id/Make-Your-Own-DIY-CNC/
This seems to be a clean and nice project, a must watch for a generic CNC build - DIY PCB/CNC desk plotter
http://morethanuser.blogspot.com/2019/07/diy-cnc-desk-plotter.html
Outstanding CNC, expressly built for PCB boards. It seems to be created on the fly with scrap materials and classic tools. No projects published, homemade material on the cheap. Impressive photo album. Lots of manual work and handmade materials, it could take hours but it seems to be affordable. Stock Router spindle, not cheap (but nice)