Turning crappy wood shredder to powerfull grinder / sander

[kutzbill]

I have been looking for an idea that I could adept to make a blade sharpener. I plan on building up the edge with hard-face rod, then sharpening them. Hard-facing rod is a chore to grind, but with a rough wheel, it can be done. It builds up quick on my diamond wheel, but Borzon wheels seem to do OK for the finish.
I have an old electric shredder that I am going to dig out of the scrap now.
Thanks & Smiles!