Let's Make Robots!
This is a secondary documentation page for my Senior Project for highschool, I'm building a cnc router with a budget of $700 bucks. Basically, the plan is to build … Read more
Uses current generated on coils in stepper to act as an encoder
Pretty simple circuit I found, you may have to play with the resistor values to get the output to logic level depending on your steppper.It uses two voltage … Read more
Takes PWM signals then feeds to an H-Bridge
Okey Dokey,  What I Have here is a relatively simple way to control 2 low to mid current motors with no fancy integrated circuits. This is just a nothing special … Read more

Where to find Timing belts and pullies?

    Well for the next iteration of my sumo- "bot" I will need some timing belts and pulleys. The pulleys need a 6mm bore though, I've been searching Google with minimal success, anything I find is either really expensive or needs to be ordered in bulk, can anyone help out?
Okay, The first one was okay, but in six weeks, I have to go to the West Point military academy and compete in four more events, one being Sumo Bots. "We can … Read more
MIGHTY BOTS   Build a bot with the highest Power to weight ratio!Two classes, PUSHERS and PULLERS Rules maximum voltage of 18vwieght in grams/kilogramsEfficiency … Read more
 Oh, yeah, the low cost is due to the fact that we (built with a classmate) used all scrap parts except for hookup wire Okay, so this project is SUMO BOT for new … Read more

right angle 12v 83rpm gear motor

http://www.superdroidrobots.com/shop/item.asp?itemid=721&catid=7

 Does anyone have experience with this motor or a similar one?

I just want a review before me and a couple of other kids spend 68 bucks on 'em, lol