We make homemade dehydrated fruits. The taste, and quality are far better than the dried fruits we bought from supermarkets. You can dry veggies as well.
It is quite simple to make a solar food dehydrator. What you need to consider is the capacity and efficiency, but most importantly, you want to make a cover so that the dust or insects won’t go inside your dehydrator. So the key parts are the frame, the trays, and the cover. The following link is an example showing you how to make this wooden food dehydrator.
We also have a electric food dehydrator for days when it is cloudy. It works great too. Here are are more details in the following link.