linear motion types

[robotek]

what kind of linear motion drives are available? other than lead screw, linear gear, what else?

[robotek]

Hi good people.
I have tried to ask in other threads, but no one responds. May be it's me, asking a wrong questions in the wrong places. It' just the website's configuration bit of confusing to me...
The question was: How do I make my machine move along x-axis (the longest one)? I figured, that using a lead screw would be little dangerous and speed restricting because it's almost 10 feet long. And besides, the gantry is not a loop shape, so I have to use 2 screws? I was thinking of using a linear gears, but they are so expensive!!! And in my case 2 sets is required!
Is there any other way to get in moving?
Please, see pictures of my project in gallery.
Anyone can help me? Please?
Thank you in advance.

[robotek]

This is my project. 4x8 3 axis CNC router. The "skeleton" is almost done.

[Al_The_Man]

Rack and pinion, Kevlar reinforced timing belt (see Breco Belts).
There are previous posts on this method.
Al.