DIY Linear Rails - Building from scrap on a budget of next to nothing

[longy]

Hi everyone, after having to put my 1500 x 1000 steel build on hold due to health and finance problems this summer, I still would like to built a cnc. Finance or the lack of any meaningful budget is something a lot of people who are wanting to build a cnc face. I would like to hear from other members that have gone that have gone down the roller skate bearings on pipes route, using wood or MDF how good or bad was your build ?


V-Groove bearings like the ones in the video below has anyone used them and will you be honest and say how good or bad they are ?



I have a shed full of plywood offcuts, steel pipe and tubes, plastics nuts bolts and the rest, I would love to explore more on building this way to make a machine to move one of my five routers around, does not need to accurate to less 0.05mm as I only want it to help with learning to use the design software and understanding mach3 better.

I intend to record and take as many pics as I can of the build so others looking to build can learn what's good and what's bad when on a tight budget.

Lets hear your views everyone.

Mike :)