Hello! I am currenty trying to build a robotic bb gun tank. I have only built the gun part of the tank and I got the two motors that will pull back the barrel and fire the bb gun. I am only 9 years old and I have never built a robot from sratch yet. I have built robots with lego nxt and in my school, but never with anything else. If you are ever buying motors, don't ever buy a motor with 1-3 r.p.m. unless you need a very, very, slow motor because I made that mistake when I bought my motors. Now I have to lower the extra torque to make the r.p.m. go higher using gears. I will update this page as soon as I can
I don't have much supplys so instead of using gears, I am going to subsitute the gears with rubber wheels for friction and making the speed faster.