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I just built this little guy

https://pic8.co/sh/14B6Rp.jpg

https://pic8.co/sh/S81lM1.jpg

Modeled after this

https://youtu.be/mzoL-Rjjg6A

I will test it out today or tomorrow. I'm not sure if I want to wait a full day for the silicone to dry. It will have been about 12 hours by the time the sun comes up today.

I just built this little guy https://pic8.co/sh/14B6Rp.jpg https://pic8.co/sh/S81lM1.jpg Modeled after this https://youtu.be/mzoL-Rjjg6A I will test it out today or tomorrow. I'm not sure if I want to wait a full day for the silicone to dry. It will have been about 12 hours by the time the sun comes up today.

(post is archived)

[–] [deleted] • 4 pts

That's impressive, if you need to boost the power, look into making a parabolic reflector out of an old digital satellite dish.

[–] [deleted] • 1 pt

Thanks for the tip. I was thinking about seeing how I can improve it after I do some testing. One thought was to put a ceramic tile at the base to help it retain heat. As it sits, the pots would be sitting on plywood.

[–] • 1 pt

Definately provide some type of thermal mass inside. It will carry heat through passing clouds and prevent large temp swings. Ceramic tiles would be a good upgrade.

[–] • 1 pt

Use a convex lens from an old rear projection TV Look up solar scorcher

[–] [deleted] • 1 pt

Were you thinking in the means of replacing the top pane of glass with a convex lens?

[–] [deleted] • 1 pt

OP could have a seperate cooking box and the parabolic reflectors aimed at it. this could make pizza.

[–] • 2 pts

There are anti-reflective coatings which increase light transmission through the glass by 10% or so, too.

[–] [deleted] • 1 pt

This is actually an excellent idea. I will definitely look into this.

[–] • 2 pts

Where did you get the glass? I've been working on a solar heater and can't find a large scrap panels of glass or Plexiglas for cheap. Guy at a scrap home parts store wanted to charge me $35 for a 3'x4' panel of glass... I'm trying to find sources for free.

[–] [deleted] • 2 pts

I got a 24"x36" pane of 3/32 thickness from Home Depot for $14. I got my mirror at Goodwill.

[–] • 2 pts

Not well done!....I mean, I take my steaks rare. But this oven you made is awesome!

If you have an oven thermometer, can you put it in there and let us know it's max temp?

[–] [deleted] • 2 pts

Thanks!

https://pic8.co/sh/S81lM1.jpg

Will do. It is a quarter after 8am where I am. I will be taking measurements of the ambient temp and oven temp every hour throughout today. I expect that it might be about 11am before I start getting a reading. I live in a subdivision community and the neighbor has a tree that will block some of the sun until around that time. Temp outside right now is about 40 degrees. The thermometer will begin to read when it gets to 150.

[–] • 1 pt

Very cool man. Good job. It looks good. Seems like a fun project too.

[–] • 1 pt

If I build 50 of those, how long would it take me to bake 6 million cookies?

[–] [deleted] • 1 pt

If you made 3" cookies and one batch took 20 minutes and you had 50 of these solar ovens, given an 8 hour operational time per day, it would take 139 days

[–] • 0 pt

That’s neat and all, but how many jew bodies/minute can this baby cremate into nothing but smoke?

[–] • 0 pt

The hard times is going to be finding food to cook in there.