Did I read that right? You use a powered belt sander to hone razors?

I definitely wouldn't recommend that, you'll remove way more metal than you need to.

I've easily been able to repair old chipped wedges on a 325 DMT and then bevel set on a 1k hone. I don't think there's any real need to use a powered belt to do it. Too much metal removed and if it goes wrong it'll happen in a flash and you've lost the blade.