Let's Make Robots!

bike

Researching three-wheeled off-road robots, asking for info.

Hello everyone,

I've been thinking about building a large off-road robot for a while. I want to make it a fast three wheeler that uses two bicycle tires in the front (bmx size) and a smaller child's bike wheel on a caster in the rear. All of the wheels are going to be independently suspended, with leading arm suspensions in the front and a trailing arm in the back. One design goal is to make it faster than a person can run (roughly 10-15 mph).

Segway Wheels

Hello everyone, 
I'm posting here today because I am currently in the middle of a segway project, and am looking for advice or ideas for one or two of its components.

Propellor :- "Interactive Roller Experience" Part 2 Display Gui

nonstream link part2 Display Gui

At last i have cracked my Propellor/Spin Display Gui headache using a combination of the tv.spin and graphics.spin   object files.

The basic "Speedo" stage is complete giving me a much more satisfying digital and analog gauge to watch (already 1-up on the traditional cycle speedometers).

A peek inside an electric bike motor

I have started on a new project and decided to use electric bike motors. I though some of you would be interested to know what's inside. These motors have good power and torque so no gearbox is required and with all those small windings inside they allow fairly precise control of speed and direction without any mechanical play.

As I want these motors for a robotic project I did not buy the speed controller normally used as it would not suit my needs. Electric bike controllers do not normally have reverse. Now I am building my own.

Lowest RPM of an electric bike motor?

What is the lowest possible RPM of an electric bike motor?  It seems to be the cheapest alternative to a slow gearmotor.  Thanks.