This is sort of like asking how high is up. Various deltas vary greatly. Most of the hardware is available and cheap in any case. You can swing by any hardware store and pick up the nuts, bolts, and some other parts for a few dollars. As John mentions aluminum rods would not be a good idea. However aluminum extrusions might be a good choice. There are many plans for deltas on sites such as Thingiverse. http://www.tridprinting.com has the BOM for a couple of deltas. http://3dprinterczar.com/shop/3dprin...tock-mini-pro/ is where I got the instructions for mine.

Quote Originally Posted by TehStranger View Post
Hello all,

I am going to be building a Rostock Delta soon and I need to know a few things. Firstly, I need to know exactly how many nuts, bolts and spacers I will be needing and also if I could use aluminium rods instead of smooth rods.

Cheers.