ImpactDIY

I made even smaller :). You can make any size, to fit your project. All you need is a big sphere or a small one when you make the mold.

Thank you! :)

Hello, I used ZA22 RTV2 mold making silicone from Zhermak Company

Thank you! It is also also very efficient, now I am working on making them smaller(shorter) and light. I made a few for friends and family :)

Hello! This speaker can produce great sound. It was a huge surprise for me. I made it for my son but now I used more than any other speaker, and I have a few :). The sound is close to the 80's speakers. And it plays 48hours on one charge at moderate volume :).

Thank you!

Thank you ! I hope this instructable will help someone. :)

Hello, the speakers and 18650 cells were recovered.Cardboard Sheets - 0$2x 15w 8ohm speakers - recovered -0$ (15-20$ new)12v 18650 li-ion cells - recovered- 0$ (about 5$/piece new)HX-3S-FL25A 3 SBMS with balancing function - 7$2x10w PAM8610 Amplifier - 5$On/Off switch - 0,5$Bluetooth module -3$5v DC-DC Buck converter - 3$Power Jack socket, 2.1mm Connection - 0,5$

Hello, I will make a new schematic and post it here. I hope it will help you!

Thank you!!

Hello, there are 2 flashlights, the one in the first video has xhp70 ked, the one in the second video has 100w led. I also made one instructable for it , you can find it on my profile.

Hello, sorry to be late, the 3 lenses are Optical Glass Plano Convex Condenser Lens. There are three lenses size that I used. The first one is 13 cm diameter and I recovered it from a Krokus photo enlarger. Second one is 20 cm diameter. The big one is 32 cm diameter. The second and the third are recovered from old, broken theater reflectors.

Hello, sorry to be late, the 3 lenses are Optical Glass Plano Convex Condenser Lens. There are three lenses size that I used. The first one is 13 cm diameter and I recovered it from a Krokus photo enlarger. Second one is 20 cm diameter. The big one is 32 cm diameter. The second and the third are recovered from old, broken theater reflectors.

. That is a good idea, it may work. I don't think that cooling is needed.

Hello :), led model is XHP70, you can find led and led driver on ebay, aliexpress etc. The lens are from a krokus photo enlarger (small one), and from theater reflectors (middle and big one)

Hello, I used Optical Glass Plano Convex Condenser Lens

Thank you!!

Now I know that :), learned it is sharp, the hard way. I had a metal sheet in the small machine vice, it fell off the bench and I tried to catch it :).

That is a very good idea :), I am working on a big 100w led steampunk flashlight and I will try to make something like that on it. Thank you!!

Thank you!!

Thank you!!

Thank you !!

Hello, I used Black Patina for Solder and Lead

Thank you :)

Hello, you are wright, a lot of energy is wasted but it is an experiment that I try to improve, it very hard to obtain huge results from the begining. :).

Thank you!

Thank you! Now it may be more useful than before :).

Thank you! I recommend to use only one amplifier, like the one I used but the newer version, it is better. If you want to put smaller speakers you can lower power by lowering voltage on the amp. If you use 2 or more amps you must install individual power source on them if they operate at different voltages. The common ground isolator has jack connectors. Have a nice day!

Thank you! :)

Thank you, I am glad if my ideas can help someone. Have a nice day!

Yes, the proper clearcoat will help the repair last longer but a good clearcoat is expensive, not every clearcoat can be applied because it will have the same effect, it hazes faster and after that another repair is not easy.

Great idea! :) Thank you!

Thank you :). I am working on a project with bigger lens :) and a huge flashlight mirror. I will try to light a subject at 2km.

It is not dangerous but if you wish you can use normal on/off switch

It works 100%, first step is the most important, use the sandpaper as long as you can, and lots of water.

No problem. I am glad to help you. I also made a little modifocation to the project after i burnt 2 dc-boost converters. I added 2 big capacitors and now is ok. I will soon post the changes. Please ask if you need anything.

Hello, please take a picture with the top of the board/boards. I need to see the markings on it. It is 12v or 5v input?

Please send a picture with the one you want to install and i will try to help you if i can

Hello. The bluetooth player has 3 cables for input(3pins), 2 for dc power and 3 for input. The female jack you need is for input or output?

Hello. Paint may come off the sharp corners of the metal but It looks cool with this time patina. To avoid this try to use many thin layers of paint. I recomend you use spray paint for thin layers.

Thank you for the vote! I hope i could help :).