LED red dot finder base

Base for a LED red dot finder.

As an example bases for a [3" f/4 Celestron first scope](https://www.astroshop.eu/telescopes/celestron-dobson-telescope-n-76-300-firstscope-dob/p,15025) as well as a [Meade Maksutov 5" f/15](https://www.meade.com/telescopes/maksutov-cassegrain/etx125-observer-maksutov-cassegrain-telescope.html) are given.

The adapter is compatible with [this red dot finder](https://www.astroshop.eu/red-dot-projection-viewfinders/omegon-led-red-dot-finder/p,47014).

For adaptations the Freecad file is attached.

*Update 2021-09-26:* The Maksutov base has been titled by 3 degree to compensate for the angle at the telescope.