reverse engineering a solution isn’t as easy as just a few pictures. we would basically need physical access to replicate the critical dimensions and then feed it into something, print the test fit pieces and double checking fit before coming to a final design.
you’re unlikely to find an .stl beause basically every laptop is going to be different. This really is something you need to design yourself.
theoretically? yes.
several problems.
Food dehydrators typically apply heat as well, and sometimes significantly higher than a filament dryer.
Then there’s the cleaning and bacterial contamiation issues- food dehydrators are made to be easily cleaned so as to prevent bacteria doing nasty things to you.
Then there’s the various resins and solvents that sometimes off gas becoming toxic.
Microplastics is far down the list if you’re desperate, but it’s there too.
but otherwise, they’re still basically the same device A heater (maybe) pushing warm(ish) air over something.