Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2616521.

This is a minimalistic design Sonoff enclosure. Fits regular Sonoff and Sonoff-RF with modifications (read below). Designed to fit Sonoff modules into my ceiling light base.

Sonoff required to be slightly modified: one needs to shorten the button and solder the led lower. For Sonoff-RF you also need to lower RF module. I've just desoldered the RF module, removed plastic parts of the pin header and soldered it back.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/39QC0IW8IrG