I'm needing some shims about 15mm OD by 8.5mm ID in a variety of thicknesses, from 0.05 to 0.2mm.
However, I need them without any burrs, due to the way they've to be fitted. They're needed to space out a pivot bush that slots in between two sides of a frame, so that once the bolt is tightened, the frame clamps down onto the pivot bush with minimal deformation (it's quite a strong alloy frame, so ideally I want to get things as tight as possible with shims, so only a slight nip up on the bolt tightens the bush so it can't turn). And any burrs, mean the shims won't slide in as tight as I'd like.
I've managed to make a suitable shim on the lathe for now, but due to the burrs left, it meant I had to make one a bit thinner than what I really need.
I'm thinking getting them laser cut would probably be the best option?
As always, I'm open to suggestions for techniques/suppliers.