Parametric EL Flatfield Panel

This model can be adjusted to your needs in OpenSCAD. The variables in the “Model Parameters” section should be all you need to adjust.  This is designed around the 5 inch EL panel from Ellumiglow ( https://ellumiglow.com/products/astrophotography-5in-circle-kit ) however it should scale up to the 8 inch panel, as long as you can still print and assemble the parts. Above 8 inches, they have a different inverter that isn't covered by the print. Both the 9v and usb inverter is covered, but I recommend the 9v inverter as it gives better dimmer control and is fully self-contained, while the usb inverter still needs to be plugged into a power source.