This can be a whole new hobby, or a business, or ...
There are a vast number of videos on knife making. Some excellent, and some otherwise.
I ran out (after finding the usual 20 percent off coupon) and bought a Harbor Freight 1x30 belt grinder.
This is widely acclaimed by various folks for knife making tasks, although if you "get serious",
you will want something bigger.
The mother of all link above describes a home built 2x72 built grinder.
Drop me a line!
Tom's Knife Info / firstname.lastname@example.org