Am in the process of building a 2" x72" belt grinder & have been reading & using this site for info & help on speeds, motors etc. I have found a site that will make calculating FPM & pulley sizes very easy to calculate. The website is at the following website and is great.
https://www.blocklayer.com/pulley-belteng.aspx
Hope everybody finds this as useful as I have during my planning stages. Also, we'll I'm at it, I'll give you the link of a young fellow, named Jeremy Schmidtwho's built a very fine homemade unit, which I am hoping to duplicate, as closely as possible. Let me know what you think. Am sure some of the other members here must have seen this video as well.
https://m.youtube.com/watch?v=a_RlL1O-bK4&index=54&t=306s&list=PL7xh-HzSRHqmBUT0K3hL-AgySq_slHk5H
