Parabolic Dish Mirror Paraboloid Homemade Solar Concentrator

There must be an easyer and ceaper way, right? Probably faster too. I don't have the resources used in this vid...

I remember using a chemical process of making a mirror from mercury out of transperent glass. But then you need a glass lined dish.

hmm.. that means i am the duffer, you are a genius !!

The concave part needs to be perfectly smooth. If you made it in the metal mold. then the back would be smooth and the inside too uneven.

Duffer, what was the need for the concrete mould ? you could have made the dish directly on the barrel

Thank you for the great idea, I never thought of cutting it before it hardens. Class A CDL, awesome.

If you catch it just right you can trim the excess with a razor the surface will be just be getting warm but not sticky slightly pliable. Temp and humidity will play a part in the amount of time it takes the catalysts to set off the reaction. Warmer the faster your reaction. When it was cold we would have to add something else to the MEKP in order to get the chemical reaction. Forgot what it was but it was pink.

When I was in industrial plastics (AKA fiberglass) we would use a wax as a release agent but we would use compressed air too to help the part come off. Next mold you make place a valve stem to reach the bottom so you can attach a 12v tire inflator on the bottom and the part will pop off. Where your part will be just place a piece of tape or plastic over so the resin don't fill your air tube.

For solar heat collection in our projects. WIFI for other applications.

what is PARABOLIC DISH used for

C.... Just a little bit. I understand about half of what I hear. I can actually read it better from all the international emails. Google translation helps.

YOU SPEAK ESPAÑOL? MR ROJAS

Is there a big difference between spherical shapes and a parabola?

Yes, that is what I used.

Thick about 1/3 of a gallon. Costs about $20 to make one.

How much resin does it take to make a thick one.

I would use a circ saw with a metal cutting blade.

OH TY for the video!

That is sweeeeet. We have an old tank that I just might have to chop up. What did you use to cut it.

When will the mirror stuff be on your website?

Nice demonstration. thanks.

Great video. Thank you for posting. I was really anxious to see how you made this. Look forward to part 2.