This is the OP translated to English via google translate, for other who were curious:
"Cross-posted from: https://jlai.lu/post/23348432
I'm also posting here, as I saw that my previous post was shared there.
Update: Following my test with a satellite dish, I'm planning to build a solar cooker using this diagram. The linear dish is 50cm wide and 1.40m long. For the reflectors, I plan to cut 50cm x 5cm mirrors. The dish isn't curved, but rather composed of 50cm facets (I haven't designed the transverse reinforcements or the mirrors).
I plan to build the structure from reclaimed chipboard, with a few pieces of 5 and 10mm plywood. For the complex parts, I cut them with my fablab's laser cutter and will use it as a template to remake them in thicker wood with a trimmer and a copy cutter.
I'll probably double the crosspiece at the top for added rigidity.
The upper parts with the holes are intended to hang a pot and eventually a hotplate. My goal is to see if I can make a solar griddle.
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