Solar Panel Window Mount for Blinds & Devices

In short:
A simple indoor window mount for small USB solar panels, intended for low-power smart-home devices such as roller shades, smart blinds, Shelly radiator thermostats, sensors, and other small rechargeable devices. 
Designed around common 148×45 mm solar panels and fits panels up to 150×46 mm.

Details:
It places the solar panel a bit away from the corner to avoid being too shaded.
Don't expect these kinds of solar panel to keep very power hungry devices charged, especially if limited sunshine.

Based on a 148x45 mm USB solar panel (model accomodates up to 150x46) mm.
These can be found at most amazon/aliexpress/etc-like web shops for about 4 USD (examples below).

Printed with both PLA and PETG. PLA have held up fine for me thus far even on sunny days. 
Consider PETG if extreme temperatures is expected.

The size of the mount is 170x90x12 mm (excluding screw mount bracket - C/D variants only).
 

Assembly and mounting

1. fasten solar panel with double-sided adhesive tape inside cavity (mind the orientation).
2. attach solar panel mount to window frame with double-sided adhesive tape on sides of it or against window if you prefer.
3. C/D variants: also fasten the mount by small screw to window frame, and/or with double-sided adhesive tape to window frame top as well

Solar panel examples
- https://www.amazon.com/CHEOTIME-Charger-Performance-Monocrystalline-Lanterns/dp/B0DSZT3XWV
- https://www.aliexpress.com/item/1005012302951282.html

Model variants
A: Standard model, left top side of window
B: Standard model, right top side of window
C: Model with screw mount, left top side of window (two sizes of top mounts, 20mm or 31mm)
D: Model with screw mount, right top side of window (two sizes of top mounts, 20mm or 31mm)

Model versions
2.4: Initial published version

Extras - to connect to device, consider
- A male USB-A to USB-A/C/etc adapter (I'm this sloppy)
- A male USB-A to USB-A/C/etc cable (If you need the extension)
- A solder-on USB adapters (This is nicer)