Now since the machine has two gantries on a single linear rail, the linear motion for each has to be independent of each other. Since I am using timing belts in my prototype, I had to use four lengths of them on the common linear axis. This can be done away with by using rack and pinions for motion which will be used in the next version of the machine and thereon.

I also came up my own belt 3d printed belt tensioning mechanism to use with the setup