Hi,

I'm starting my belt grinder build based on Michael Clerc's design. Now I've got a dilemma that I'd like help on.
What size contact wheels should I get?
I'd like to eventually try hollow grinding rather than just wedge type blades and I'm considering buying two - the postage is cheaper than if I were to decide to buy another in a couple of months.
Currently I'm thinking 100mm (4 inches) and 200mm (8 inches).
Should I be looking at the 150mm (6 inch) wheel instead of one of the other two or not?

I reckon that with both sizes I should be able to do just about everything I need and I'm also considering poly coated platen rollers so I'll have 2 inch (50mm) wheels to grind on as well.

For info so far I've only got the motor - 60 dollars from a fella down the road and it's a 2HP 1500 RPM model.
Gonna pick up a drill press this weekend and order some taps etc as well.

Only problem I have so far is that the motor doesn't have what I'd expect to be called a keyway, just some sort of built in key on the shaft and so I'll need to cut my own keyway on the pulley when I get it.

Thanks,

Paul