The reflectors i made before was only for test. I had to make some better and more robust reflectors.

I cut 2 new pieces of aluminum foil	With number 600 and 1200 sand papers, i sanded a strip in the middle	Then i brushed this strip to polish it
I made 2 similar pieces	I cut a U aluminum profile, same length as the heater radiator	I trimmed the 2 aluminum foils to the size of the U profiled alu

Now comes the hard part. I had to form the foils into U, and place them inside the aluminum profile. To do this, i used another aluminum tube, smaller than the U profiled alu.

This is the aluminum tube that i used	I wrapped the foil around this tube	And i placed it inside the U profiled
Then i bended the sides around it...	...all the way, until it was fully wrapped	That is the final result

I wanted to run more realistic experiments. So i had to use both aluminum cooling bases. Therefore, i connected them in parallel.

These are the material that i used	I put 2 8mm tubes to the one side of each Y connector	And i connected these ends to the aluminum coolers	That is the final assy.

To maintain proper water flow, i use 10mm diameter tube that is separated into 2 8mm tubes. The separation is done with a Y quick connectors. A same connector is used to join the 2 8mm outputs into one 10mm and return it back to the tank.

It was time to test my new reflector:

I quickly made some Z-bases to hold it under the lamp	and i placed it there...	The experiment began!

I don't think it is necessary to post all numbers and bits of the experiment. Only the results would be enough. After all, you know the procedure from the previous page. So, to my great disappointment, the heat power that needs to be dissipated from the water is is around 120 Watts, which is extremely high...

After all the previous experiments, i was finally convinced that the lam base was a wrong design from the very first beginning. So i had to re-design it. As i do not know what the final design will be, i made some tests with different designs and materials. Finally, i came to this:

I drilled a hole to both sides of the reflector, about 10mm from the edge	I screwed an L hinge	And i put back the reflector foils
That is the final assy of the reflector	Then i screwed it on a 18mm piece of wood	The bottom side of the reflector is 2mm under the top side of the wood

Had to make the base more steady

I cut 2 more pieces of the same height 18mm wood, about 8cm long	I used lackleim to weld it together	I left it for about 40 minutes	This kind of glue is as strong as cement, with only 5 minutes open time

Now i need of a way to keep the cooling bases into position:

I will use 2 pieces of small U aluminum profile	I drilled a hole right in the middle	This will hold the pieces together	This is the final assy

The final assembly has to be slightly changed. The screw interfere with the radiator's poles. I have an idea how to solve it, but for the time i just moved it slightly to one side.

Finally, i had to connect the lamp with the power wires, and also i had to find a way to hold the lamp in position, slightly above the bottom side of the reflector:

I screwed these metallic pieces on each side	The power wires for the radiator goes under these pieces	I connected the lamp to the wires	Ready!

So, i was ready to run the experiment. I hooked everything together:

To avoid burning the material, the dimmer was in very low scale. Then, after some tests, i reduced it more. The measurements with the green background (above) were taken when the power was reduced. As yo can see, the water gets about 12 Watts of energy from the lamp, with BOTH the cooling bases installed. So, i think we have a winning design here! I am absolutely convinced that with this design, i will not need any peltier to cool the water. A simple PC fan will be more than enough.

I should also mention that the water temperature during the beginning of the test was about 2 degrees bellow the ambient temperature. Then, when it reached 33 degrees, it did not get any hotter. Why? Because simply, the heat dissipation from the water tank to the air was greater than the heat that it got form the lamp! I suppose that these two magnitudes balanced.

Here are some more photos that i got during the last experiment:

It takes no longer than 3 minutes for the material to be ready to be bended	After each bend, i cooled it with water and immediately done the next bend	I can bend it in very close distances and extreme angles, because the material is heated only in a narrow strip	This is the very first sculpture ever made with my folding heater!

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