I purchased some rectangular hygrometers that I need a frame for. I wanted to mount it in the flip-up lid of a filament dry box (plastic cereal container), so I came up with this design. It worked great for me, and I hope it will for you.
The hygrometer I purchased from Amazon
https://www.amazon.com/dp/B07MCGDN5C?ref=ppx_yo2ov_dt_b_fed_asin_title
The storage containers which will contain the hygrometer was:
https://www.amazon.com/dp/B08HQ7133Y?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
Sizes:
Can be printed in whatever filament you want. I used PLA.
Used PLA with the following print settings: 0.4 nozzle, 0.2 mm layer, 5 top layers, 4 bottom layers, no brim, no supports, and infill 15%.
Both the hygrometer, and it‘s frame are a friction fit . No glue needed.
Note: After posting my design today, I come to find out that other people had designed the same thing. As they say “ great minds think alike”. Sorry, no I did Not plagiarize your design.
The author marked this model as their own original creation.