Ok, I was loking on
www.smooth-on.com last night and searched throught the plastic casting supplies to make my drive sprockets. I just want to know what the best compound would be. I've never bought or casted my own parts, so a mixture of 1:1 would be best for me, to make things easier. The colour really doesnt matter, just as long as its not clear. And I was wondering how much I should buy for about 8 approx: 4-5in. diameter drive wheels? My brother is going to also cast his. Thanks