Mini efficient coil launcher from disposable camera flash. This is a fun and non-dangeros project for those people who like to throw projectiles magnetically.
It simply works by placing a ferromagnetic projectile at one end of a coil and pulsing some power in it. The trick is to switch off power when the projectile is at the middle of the coil, there are some ways to do it but it isn't important now. The second trick is to use a coil as close as possible to projectile to waximize coupling and the third to avoid saturation, that means keeping the current not to high.I've been messing with coil launchers for a year. The first model was a straw with some wire wrapped on it and an electrolityc capacitor (200V) pulsed in it. Lots of sparks and metal flying but was able to shoot a nail accross my room.
Iccarus. RC Submarine - 100% Waterproof Solenoid valve " Air " & " Water " DC4.8v ~ 18v. Most Popular Repurposing Tricks of 2011. Watermark Tee by Sweet Verbana. Hello U-Create readers!
I am so excited to be guest posting here today. It just so happens to be my first guest post and I'm still a little shocked that it's here at Ucreate, one of my favorite blogs! A little bit about me.. I'm from a little town called Keller, Texas. I'm a junior at Texas A&M University (whoop!). I'm working on my education degree and expect to be an elementary school teacher in just two short years.
When I'm not busy studying for classes, I love to sew. I just started blogging in May and have already met all kinds of wonderful women, I hope you'll stop by and say hi too! Watermark Tee Tutorial What I love about this project is that it's completely customizable. Materials: Elmer's Blue Gel Glue (it must be the blue gel, white won't work) Fabric Dye (RIT is my tried and true brand) A white cotton Tee, Tank, Dress etc. Tutorial: If you're unfamiliar with Batiking, it's a method of dyeing fabric in which you create a design with a dye- resist.
Step 1: Prepare Step 2: Design. Petter’s Robot dreams » DIY Segway. Embedded by Embedded Video YouTube Direkt Why build a DIY Segway? The main reason that I wanted to build a DIY Segway was simply because I wanted to see if it was possible. I also liked the idea of building something that strongly interacts with humans. I will now describe how I built it. Hardware The motors, wheels, chain, gears and batteries came from electric scooters like the one to the right.
The gearing is made in one step from the small gear on the motor to the bigger gear head on the wheel. The fasting of the gear on the 12” wheel was based on a freewheel mechanism therefore I had to open up the freewheel and remove all the grease and then use epoxy to make it possible to drive it in both directions.
There is one fixed axle on which both wheels rotate, this axle is attached with three aluminum blocks which fixates the axle with 5mm set screws. The handlebar is a normal bicycle handlebar, the pipe on which it is connected is a 25mm hollow steel pipe. How-To: Form-Fitting Case-, Drawer-Liners From Old T-Shirts, Canned Foam.