Hadley NRF focuser to T2 system

I bought myself the amazing FlipMirror but forgot to get any gear to attach eyepieces to the top port. While pairing something as classy with Hadley part is far from optimal, it works and is certainly better than nothing, while i'll procure the “proper” parts.

The tube is shorter and travel is limited to around 35mm (focuser can't go through T2).

There are two options: 

• With modeled T2 thread for those feeling confident in their machine (my K1C can handle 0.75mm pitch pretty fine)
• With slot for the T2 ring that is commonly used in camera to T2 adapters. Tap holes for M3 bolts to fix it in place. (i've tapped for M4 because of how it printed)

At first I've printed the ring version, but it's too wide and inconvinient to screw on FlipMirror. The T2 thread versions is more compact.