Here is progress to date...a lot of drilling and tapping for this part which is the clamping section to the Dec axis. Just like the Gaunt only everything is bigger. The Gaunt has 5/16 bolts and threaded rod with 8mm brass rods. This mount has m12 bolts m12 threaded rods and couplers and eventually 12mm brass rods. There will be a central m12 lock bit on this mount too to help keep it in place. Up front I added a small brass counterweight. Solid as and weighing quite a lot more than it did before. One more part to build and then the tangent is done....sometimes I think it would have been easier to get a 7" Byers drive for the Dec...