Visit https://github.com/uStepper/uStepper for detailed instructions and design files!
You will need aluminum rod in both Ø 15mm (~13mm inner) and Ø6mm.
Besides that, a couple of bearings are used:
4 pcs. 608ZZ
10 pcs. 624ZZ
2 pcs. 625ZZ
The tubes were bought at the local hardware store called Bauhaus.
The tube lengths for the two Ø15 are 170mm and 310mm, the Ø6 are 270mm, 220mm and 210mm (that is the lengths they are when I cut them - not including the printed ends). NOTE the tube lengths will not give you the parallelograms making the end actuator stay aligned with the base - I am working on instructions showing how to assemble the arm and dimension tube lengths!.
M3 x 20mm = 24 (I cut them in length to fit - if it is necessary)
M4 x 20mm = 4
M4 x 30mm = 1
M4 x 35mm = 1
M4 x 50mm = 1
M5 x 40mm = 1
M8 threaded rod 70mm or 65mm if it's a bolt
M8 x 35mm = 1
All lengths are of the threaded part of the bolts - not including the head (but that is also what's normally stated on the boxes you buy them in)
Besides that you will need nuts and spacers. Between the two main gears I used a lot of spaces to keep the apprpriate distance between the gears. I realize that finding some aluminium tube with inner diameter of 8mm would look better and do the job just as good.