The true test of the amateur astronomer is building their own telescope. Grinding and polishing your own mirrors is a long, arduous process. Instead of lapping the blank by hand, Laurie Hall built ...

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 ...

Back in the early 1990s, Rank Pneumo designed and built the Opticam SM lens grinding machine according to the specifications laid down by the Center for Optics Manufacturing (COM) in Rochester, New ...

Grinding Hub 2026 preview highlights digitalisation, automation and 430+ exhibitors in Stuttgart, plus a first look at ...