I have practice glass and was wondering if you can remove distortion once it has been distorted by grinding on it… ?
Yes you can remove distortion, but the bigger issue is preventing the distortion in the first place. Distortion results from un-even grinding which leaves a lens in the surface of the glass. To remove the distortion you need to flatten out the lens.
Check out this episode of Restoration Revolution which talks about removing distortion.
Hope this helps
Was this video Cody posted able to help you out at all?