70mm Base 60mm IPD

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/crI2Z5vcupB

This part is the base to mechanically combine two Celestron 70mm Travel Scopes into a pair of very comfortable astronomical binoculars, see petertinkerer.com for assembly instructions.
This part is used for making binoculars with an inter pupillary distance of 58mm to 62mm