DIY Video : How to build a 100W Super Bright LED Flashlight using a PVC pipe and Dead Laptop Battery

    This video shows the build of a super bright 100W LED flashlight in PVC pipe housing.Main parts bought from ebay. The battery of this flashlight came from 18650 lithium cells removed from dead laptop batteries.The other materials required for this build are 100W LED COB chip,100W LED Reflector, lens, lens bracket kit,DC to DC boost converter 250W,DC to DC step down (buck) converter.Some parts bought at local electronics or hardware store.Rest all stuff had lying around.The other video shows the build of the 22V 6Ah battery pack from dead laptop batteries.

    Watch the DIY Homemade 100W LED Flashlight using PVC and Laptop Battery Build

    • How to build an Emergency Waste Oil or Used Vegetable Oil Candle from Old Nail Polish Bottle
      This project goes into the build of a simple and inexpensive waste oil/ used vegetable oil candle from an old nail polish bottle. You can burn motor oil ,vegetable oil, olive oil or you can also use lamp oil in these types of candles. The first thing your need for this oil candle is a reservoir to hold the oil in. Here we use a finger nail polish bottle. Next , a length of 100% cotton yarn is needed that is slightly longer than the length of the bottle. Another requirement is a one inch square piece of aluminum foil. The first thing you need to do to start this process is to take the bottle , clean it completely and fill it with your source of fuel like veg oil, waste motor oil, corn oil, olive oil . When you are pouring the oil, you don't want to go all the way up to the top of the bottle. Leave small amount of space at the top of the bottle. Take the aluminum foil and fold it length wise in half .Puncture a small hole in the middle of the foil . Through this hole, the cotton wick is pushed through. Lower the wick into the bottle and fold the aluminum foil around the neck of the bottle. This acts as a lid . Make sure that everything is folded down nice and tight around the bottle. Check the candle and see if this wick is wet. And if it is not , turn it upside down for a minute . The oil will then come into this wick and saturate it. Be careful that your aluminum foil doesn't fall off. If your cotton wick is a little bit longer, pull it up a little bit . This exposes the wet part of the wick. Take your scissors and cut the wick down just a little. Light the candle . When you first go to light them it takes a minute because you have to get everything warmed up. Let it burn a little bit. Make sure to not use a thick layer of aluminum foil for the lid. The aluminum foil will heat up and cause problems.
    • How to make a Survival Rope Making Machine at home from easily available materials
      This project goes over the build of a Homemade rope making machine using a simple cordless power drill and some inexpensive materials that are sourced from the local hardware store. Here are the materials needed for this project: Three quarter inch by five inch eye bolts with hex nuts Fender Washers Cut Washers Hex Nuts Plastic Castor Wheels two by two and one by six by six piece of lumber Old bicycle tire tubes Take the board and cut it to length of seven and a half inches and took the first piece and doubled it over the second one and cut them together so that they are exactly the same length. Then I took a piece of two by two and cut it eight and a half inches long. Take large fender washers and position them on the board forming a triangle, you want to do it in such a way so when you add your two by two to the top as well as the bottom, it has similar spacing at the top and the bottom. Put the two boards together, mark the centers and drill the holes. Next step is to build the metal spinning hooks. These spinning hooks are going to be made out of eyebolts which is used as a hook to put the strings on. We take 3 plastic castor wheels and use them as a pulley , connect them together with a small piece of bicycle tire tube so that when one is spun ,all three of them would spin together. We take the 3 eyebolts and push it through the hole and secure them tight with a small cut washer and hex nut. It is locked in place but should spin freely. Put with wheels through the bolts and secure them using fender washers, cut washers and nuts. Take an old used tire tube piece and line it up between the two washers and cut up a piece that is roughly about the same distance as that gap. We loop the tube over the pulley all at once.The Second board is pushed through the bolts over the wheel pulleys.Make sure everything is lined up symmetrically. When we turn one bolt, the belt drives the other two pulleys and they all spin together. As we are running the hook spinner, we are going to need something to hold it at the other end, To make the other end of the mechanism that holds the strings in place, we take six inch piece of common board and eight and a half inches of our two by twos on the bottom to secure it as a base and them we clamp it over a table. The idea is that as each hook begins to spin, the two cords attached to it will intertwine with each other. And then eventually all three of those cords will mesh together to make a nice three stranded rope. As the strands are twisted, it creates tension on the backboard. To relieve the tension, we drill a hole through the backboard and tie the rope to another counterweight rope through a swivel hook that pulls the tension and allows it to rise as the cord is pulled. We also make a rope makers top that will help guide those strands into the beautiful three strand cord. We add two ropes between the spinner mechanism as guidelines and connect it to the back board to accommodate the rope makers top. The idea is that as the tension builds it will glide forward and guide the individual strands into place to form a three stranded rope. We sandpaper the holes on the rope makers top to make it smoother so that the lines won't snag up when they start twisting. We put a wooden knob on the back to reduce the friction so that the rope makers top can slide smoothly. Loop the cords through each of the three hooks on our rope maker machine .Form a slipknot and connect it to the swivel hook. We have our rope machine build complete . To tie and cut of the rope, take a small piece of electrical tape and wrap it around the end where you want to cut it off. Cut The Rope at the back just where the electrical tape ends .
    • How to build a Simple Homemade Wind Generator from Old Ceiling Fan ,Microwave Oven Parts ,Old TV Antenna and other free junk
      This project goes over the build of a homemade wind generator built from random junk ceiling fan ,microwave oven transformer ,office chair, an old piece of a TV tower, and some random electrical stuff. The blades are also from an old ceiling fan .It is extended with some wood and fibreglass on it to make it stronger. A scrap piece of pipe is attached as a shaft to the hub of the turbine. An office chair frame which can move freely is welded to the pole/post of the turbine. This is welded to an old TV Tower. 4 magnets are glued on the hub. The frame of an old microwave oven transformer is cut .Its core is exposed and that is welded onto the brackets. The magnets pass over the transformer core and induction takes place creating electric current. We can use that current to charge a battery or to power lights or whatever. A multi transformer setup would generate more power. We hook up a rectifying diode to convert from AC to DC and some capacitors which can even out the voltage and give us direct current. Also a diode to block the current from the battery to go up back up to the generator. This set up can charge small batteries. A piece of sheet metal is welded onto the bracket of the ceiling fan. Four magnets are spaced apart and aligned along their respective poles in north-south directions and glued to the bracket using 2 part epoxy. To generate more wattage from the wind generator ,we use an old 120V DC lawnmower motor. Because we have multiple poles, we have magnets that are really close to the armature, this is a way better motor to use. The only downfall of this is that it has brushes, eventually it's the brushes are going to wear out, you probably get a few years out of it before you need to replace those. This motor would probably put out about 100 watts.