Some of the very largest – and coolest – CNC machines use supported linear rail for their movement axes. For any home tinkerer trying to reproduce these supported rails, the problem of cost comes up ...

Here’s an interesting experiment that attempts to measure the quality of a linear rail by using a form of visual odometry, accomplished by mounting a camera on the rail and analyzing the video with ...

Adding linear rails to a length of aluminium extrusion is a common way to make a fairly rigid guiding structure, and I have been doing just that in the workshop. But things were not working quite ...