Most you won’t use but there will be gems in the mix that will be perfect for your build. Start to collect interesting parts, things that appeal to you, a lens, small mechanical parts, vintage or old looking parts, vacuum tubes, knobs from old stereos, whatever you can find that you think might possibly work on a build like this. These come in real handy when securing parts to the rod.Ī. Grab some washers are well, big and small. You will need a bunch of stainless steel nuts that fit onto the threaded rod. I also ensure that I get a piece that just fits over the threaded rod. I buy this in a few different dimensions. Plus it’s silver coloured so works well with most builds. You can use it to cover the threaded rod and make your ray gun really stand out. You can get this at your local hardware storeĪ. It comes in different thickness, I used a M8 threaded rod for this build. You can then add the barrel, nozzle etc to it the same way. It can be connected easily to the drill with only a couple washers and nuts. These are great to use to form the backbone of your ray gun. Give eBay a try or shops that sell 2nd hand goodsĪ. Don’t go for too big a one – look for something that has some character. You really want an old, vintage one for best results. ![]() However, if you are building a ray gun out of an old drill, then there are a few parts that I can recommend to you and get you startedĪ. The electronics is fine as that is a definite list of parts, the ray gun however is a different kettle of fish. You find the schematic attached and I've also designed a board for it as well which can be found on my Google driveĪ parts list is a hard one for a build like this. The flashing LED circuit I used some prototype board as it was only a small circuit to build. I use JLCPCB but there are plenty of others you can use. Just save that file and sent it to your favourite PCB manufacture. The zip file has all of the gerber files which you need to get the PCB printed. You can't attach zip files to Instructables pages so I have linked all of the files to my Google drive. They are easy to understand and once you get the hang of it, easier than you think. If you are interested in getting into designing your own then I highly recommend Sparkfun's tutorials on schematic and board design. I have started to design my own PCB's using Eagle. ![]() You can always just use the schematic attached and make it on prototype board if that works better for you. I took the ray gun schematic one step further and designed a printed board for it as well. I'm adding 2 circuits to this gun, the first is a ray gun sound effects schematic that was featured in Make magazine and the 2nd is one I came up with for a speed controlled, flashing LED. ![]() Charging and voltage regulator module - eBay Mobile Battery - You probably have an old mobile sitting around that you can pilfer one from or get a new one from eBay.Ģ. I think I used an 8 ohm, which worked fine as well.ġ. Switch – this would work well - eBay, or maybe a momentary switch like this The drill came with a trigger switch, which I used.ġ7. Charger and voltage regulator module - eBayġ5. You can also get these for free! - check out this 'ible on where to find themġ4. Check out this ‘ible on how to easily make one from an LED and a LDRġ3. Optocoupler - eBay, or you could make one. Circuit Board - Gerber files can be found hereīuy your caps in bulk assorted lots on eBayīuy your resistors in bulk assorted lots on - eBayġ2.
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