T-Ring Adapter for Vixen-style Focuser

thingiverse

I designed this simple adapter for my 106mmD 900mmFL telescope ( https://www.thingiverse.com/thing:5353394 ) rather than buy this adapter for $45 (assuming it'll ever be in stock): https://explorescientificusa.com/products/vixen-telescope-60mm-ring-with-t-thread-adapter This adapter has a 60mmX0.75mm metric thread on one side that threads onto a Vixen-style focuser, such as this: https://www.aliexpress.com/item/32952077276.html and a 42mmX0.75mm metric thread that threads into a T-ring adapter for a camera. With my telescope design it provides about an extra inch of back focus, enough for a Nikon or Canon DSLR. Print this at 0.12mm vertical resolution or better. I printed mine at 20mm/S in black PLA. It works well, though I don't know how durable it will be long term.