It seemed like a good idea to build a semiconductor lapping machine from an old hard drive. But there’s just something a little off about [electronupdate]’s build, and we think the Hackaday community ...

Lapping is a final abrasive finishing operation that produces extreme dimensional accuracy, corrects minor imperfections of shape, refines surface finish and produces close fit between mating surfaces ...

The kind of lapping plate Insaco uses plays a vital role in the lapping process. It significantly affects the output of this abrasive machining technique. A plate should not be too hard as it damages ...