I was going to post the link to the German forum grinder, but TerraNova beat me to it! LOL He's the one that gave the link to me!
Actually, I'm considering making a hand crank conical grinder. I've sourced some used 68mm conical burrs from one of our members in Germany that knows his grinders
- just something to test with. Before Terranova showed me the links to that German forum I was already considering a wooden framed grinder. Have a few ideas worked out on paper while I'm waiting for my burrs to arrive.
If my project ever turns into something useful I'll post some details in the forums here.