Planning and build of my "8020" aluminium CNC Router

[Tom]

.... looking at using the skate bearing style linear movement. This will run on a sheet of cold rolled steel bolted onto the outside of the ali extrusion. This should give me smooth rolling and a nice straight edge to run along. It will also allow me to get the gantry rock solid by tensioning the top and bottom runners.

Hi Monza,

You won't regret using skates and CRS rails. That element of my router is absolutely rock solid - it feels very robust indeed. More assembly and tweaking time to get it running right than, say, ball bearing carriages, but also MUCH cheaper.

The machine you're building sounds alot like my next one!:whistling::naughty:
Alu section is the way forward....!

All the best,
Tom

[monza]

If a few people are building the same machine then maybe we should all get our heads together and come up with a good scaleable design which will let us get discount on some things and get other bits imported etc in the same box?