I’m now outside the original scope of my thread, but I think this is a worthy & important addition. I have a Jet 1100 canister dust collector for my shop. I used it with a temporary hookup to my 2x42 grinder I was using before building this one. It makes a significant difference in the amount of airborne dust generated during grinding, and this is 10x true for handle materials.
An old trash can left from the previous owner of my home, 3x 5’ sections of 4” galvanized duct, a few plastic Dustright connections lined with metallic duct tape, a few sheet metal duct terminations, two blast gates, and some silicone sealant. This makes a permanent rigid dust collection system for the grinder. The trash can acts as a high volume collection vessel for most metal dust and heavier particles, with enough volume to allow gravity to overcome the vast majority of particles from going up the suction, preventing premature wear on the impeller & collector unit parts. Wood, Micarta, G10, etc dust will most likely go all the way through, and that’s good for me and my shop.