A mechanical device used for calculating area on an arbitrary shape.
Building Instructions
Pritz Hatchet Planimeter
My first planimeter, very simple and very demonstrative to understand how a mechanical device can calculate area.
Hot Bulb Pneumatic Tractor
A lego pneumatic tractor based on a hot bulb engine Lanz tractor. Features drive, single pneumatic engine, adjustable ignition point, steering and suspended seat.
Lego computer : Digicomp
The digicomp was a mechanical computer sold as a plastic toy in 1963. Capable to count, multiply, divide, depending of how it is programmed.
Torque Limiter
An automatic switch-off torque limiter, designed to prevent damage by excessive torque.
Wheeled Snake
Crawler wheeled snake features drive, steering, and 3 DOF articulated suspensions.
