Let's Make Robots!
Calculates simple mathematical equations.
Hello fellow LMR users! First off, I want to make this post a building log for this project. However, I started the project a few months ago, so it's already more … Read more

Custom PCB Manufacturing

Hello everybody!

Would anyone know were I could get made a custom PCB with two copper layers and a silkscreen layer? I have been searching for two weeks now, but all the manufacturers are either too expensive or don't accept my file format (PDF).

Any help would be greatly appreciated!

RobotGoose

Circuit Help

Hello everybody!

I've been browsing the Web for projects using the 555 timer, and found one that interested me: a stun gun. I've been constantly working on the circuit (schematic can be found here). However, getting it work has been impossible for me. For example, according to the description, the transformer alone can produce 1kV, but my multimeter only detects 9VDC, the same as my 9V battery power supply. I even bought a second transformer, just to see if the first one was defective, but still no success.