2018-10-25 Update: DIY rechargeable desk lamp
Prepare the required tools as shown in the pic, and also need an electric drill.Prepare a power bank and a plastic box with the size: 190mm * 135mm * 55mm.Then also need to find four light emitting diode, a lamp base.Now start to process, the plastic box is made as shown in the pic.One is the position of the adjustable switch, and the other is the charging position.We took the power bank apart.Separate the battery from the board.Place the circuit board in the position as shown in the pic.Then we...
View More >>2018-10-16 Update: DIY a simple soldering iron with a syringe needle and a small wooden clip
If it is is urgent to solder some items at home, but the soldering pencil is not work. Dont worry, you can make a soldering pencil with a few simple items. First, you need to prepare two needles, a wooden clip, a metal tab and a 9V battery.First, remove the needle from the syringe. You can also replace it with other wires.Then, take the wooden clip apart, and tape the needle to the sides of the wooden clip. Twist one of the needles and to make it touch the other.Next, take out the metal tabs and...
View More >>2018-09-27 Update: Remote control car making tutorial
First prepare a few cardboard. Cut them properly and stick the 4 sheets together to form a thick board for the chassis. Prepare the wheels, my wheels are removed from the toy car when I was a child, a little small, but I can fix them with iron wire. Prepare a big gear for turning. Make it like this, it seems that the change is not big, in fact, one of the holes is processed into strip holes. Fix a part of the two used refills on both sides of the chassis with hot melt glue.Fix the wheel like thi...
View More >>2018-09-18 Update: DIY an Electronic Automatic Watering Device
Materials include: Electromagnetic valve, Timer, Plastic tubes, Tees and Shorting tubes (for tapping pipe), Tees and Crosses (for plastic pipes), Wires, PTFE tape, Velcro. This is an electromagnetic valve and the copper quality is very good. This is a timer with a maximum time of 7 days, the cycle is automatically turned on and off every week, and there is a built-in battery to maintain timing data. First, remove the faucet and triangle valve connecting hose under the wash basin, connect the tee...
View More >>2018-09-10 Update: The Process ofMmaking a Solid Tesla Coil
Try to do the integrated half-bridge solid Tesla coil, the effect seems OK~ First of all, design PCB motherboard ~ Use an acrylic plate with screws to make a motherboard bracket ~ Start soldering on PCB motherboard ~ The driver part uses a large number of patch components ~ The driver part is almost completed ~Start winding the secondary coil ~ Secondary coil sprayed with insulating paint ~ Test GDT drive output ~ Welding power tube ~ Mount the bracket to fix the PCB mainboard ~ Final to have a ...
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