For over a year now at the Jyväskylä Hacklab we've been working on a large CNC machine.
The Sergei CNC aims to be easy to build out of simple parts, cheap, sturdy and scalable.
I'm sharing some footage of the beast here as to inspire others to build similar machines.
The frame is made from 50x50mm tube from the local hardware store.
Everything is held together with M8 nut and bolts.
Longboard wheels are used for motion, they work well, normal skateboard wheels are also very good.