MDF CNC Router plans / parts for home build beginners

[Ross77]

Has anyone ever built any of these skate bearing linear guides and had decent results?

Just don't like the look of them but not had any experience with them either.

Hi Steve, interesting project. You must have plenty of spare time

I've not used the skate bear guides but share your concern. To me the results would seem to be heavily depend on the workmanship and there could potentially be a lot of alignment issues (the poor results might put off some beginners)

What I do know is that the twin 25mm unsupported rails that I was going to use for my mill used a solid bronze bush on 1 side and 2 opposing skate bearings on the other and it always seems notchy when they are adjusted up tight. The solid bushing was silky smooth tho.

I know that unsupported rail are always shot down because they flex but considering the aim of this project and the small spans I'm sure it would be the best option to balance ease of use, cost and performance. There is the option for solid bushing or ball bearings that would provide the flexibility required.

With regard to using mdf, when I used to work for a car audio shop we built lots of custom Sub boxes and it was always apparent how much stronger the structure was when the joints were routed, glued and screwed so I would defiantly recommend this form of construction. if you dont mind me interfering I can help with options for stiffening the bed to keep Lee happy :heehee: (easy. dont remove a big chunk of material at max bending:rofl:)

Better shut up now, later