Stepper motor conveyor belt

I made this model conveyor for a robot project im currently working on. I wanted it to be as simple as possible.

Video of the conveyor working: https://youtu.be/LOpMmwAWrJ8

For the frame is used 10x10 aluminum extrusion from Makerbeam (https://www.makerbeam.com). This makes a really ridged and strong frame without having to print al the parts. The moter I used is a standers Nema 17 stepper motor, nothing special.

The electronics are also really simple, I used a schematic from Schmalzhaus (https://goo.gl/8aKsMe) and a Easy Driver from Adafruit.

For the belt I contacted a local conveyor belt manufacturer and they made me a white endless PU belt which is 747mm x 55mm