![]() ![]() Tape over the cap to prevent infrared from passing through it. Anything that makes a pulsed or random IR signal will work. You can even use the face proximity sensor on your smartphone (which is usually near the selfie camera). Use a lighter, or matches, or anything that can make a spark. If you don't have a remote at all, you can still test or trigger the auto darkening lens for a brief time. ) There is nothing essential about the bottle cap. You could also use the bottom of a soda can, cut with a swiss army knife. You could use a piece of broken glass as a light-pipe. You could use a bit of mirror from a makeup compact. If you didn't have a cap, there are still many ways to direct light from the remote. ![]() By putting the aluminum in an oven, heating it with a torch, or even leaving it out in the sun, you can make it possible to glue with hot melt adhesives. Tip: If you have a surface that doesn't want to be glued with hot glue (like aluminum, for instance), you can make things work much better by preheating the surface. ![]() The cap basically serves as a little "light dome" that contains and bounces the infrared signal over to the infrared sensor. This will make it easy to bounce the infrared light over to the sensors. Glue the remote on the side with hot glue, close to the IR sensors on the front of the helmet. Enjoy.Īs demonstrated in the video, the pulsed infrared light from the remote causes the helmet's window to darken. For example, in the video I use a custom infrared viewer to show exactly what the remote is doing in the infrared. I have mixed feelings about the way that so much tutorial content has become video-based, but in this case, I felt it was useful and afforded some good opportunities to teach. Be sure to see the annotations on the images for extra details, ideas, and facts useful to any aspiring MacGyver types. In this Instructable, I spent some time packing information into the images. The basic principle of this thing is to used the pulsed infrared light from a cheap remote control to "trick" a normally automatic welding helmet into being a useful viewer for solar eclipses or other super bright stuff. HARBOR FREIGHT WELDING GOGGLES SHADE 12 OK TO VIEW ECLIPSE TVI hacked together a TV remote control, a bottle cap, and an auto-darkening welding helmet to make a capable and safe eclipse viewer. The essence of MacGyvering is overcoming obstacles with whatever you have at hand. So, I couldn't find any eclipse glasses, but I couldn't let that stop me. ![]()
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