Topcon UV - M42 Adapter

thingiverse

Adapter to use UV Topcor lenses on a M42 mount. A second Thread part with a bigger hole was added as the first version was a bit tight. Added the Fusion 360 source files with some parameters for people with tolerance issues. Printer settings: I think it helps if you set the "Top Solid Layers" to 10. Bayonet part: Try to use as little support structure as possible on the 45-degree angled surface. The Ring part will turn better. You might have to scale the Thread part in xy direction in your slicer software to have a proper fit. Use some lithium grease on the click mechanism to keep it from wearing out too quickly.