Telescope OTA Top Accessory Dovetail Bar

thingiverse

This is a dovetail bar that mounts to the top of the OTA ring clamp. The profile is compatible with the standard accessory dovetail found on most telescopes. The length and screw hole locations are modeled after the ring clamp for a Celestron C6N 6" Newtonian, specifically the one that is often packaged with the AVX mount. I don't know if this is standardized, it probably is. The width goes from 30mm to 21mm at an angle of 60 degrees. The height of the straight section is 7mm, and the total height is 11mm. The length is 210mm, and the two outer screw holes are 184mm apart, center-to-center. The screw holes are 6mm diameter. This is strong enough that I have no problem using it as a handle for picking up the whole OTA loaded with camera, guidescope, and accessories. But do be careful when testing your own print! Note: It should be installed upside-down from what is pictured.