SkyWatcher Esprit 100ED flatbox
Holds a circular Ellumiglow 5" EL panel and attaches it to the dew shield of a SkyWatcher Esprit 100ED to take calibration frames. The two pieces hold the EL panel and a frosted diffuser in place; they are attached together with 7 self-tapping M3x12 or M3x14 screws. One piece has mounting holes to attach the external 12V power suppy with 2 M3x6 self-tapping screws.
Models for the two parts are in Tinkercad:
https://www.tinkercad.com/things/eDyeHZZXfa5
https://www.tinkercad.com/things/9teTSCjaLze
EL panel kit is available from Ellumiglow
https://www.ellumiglow.com/astrophotography-5in-circle-kit
(select the frosted acrylic option)
I am not sure if the power supply/inverter I designed this for is still available. If not, you can customize the mounting holes in Tinkercad for your equipment or drill your own post print.