RC Transmission & Gearbox Plans
Build it yourself Transmissions for use in radio controlled cars, tanks, trucks & other vehicles.
A full range of transmissions especially designed for building it yourself. These gearboxes and transmissions are easy and cheap to manufacture, suitable for hobby model builders and amateur craftsmen. No precise or small tolerances. No special tools are needed, except for a small lathe and drill column. Off course some general knowledge of technical drawings and metal crafting is required.
All materials are available at hobby- and / or hardware stores. The housing is made out of stock aluminum bar 50x8mm, and the clutch parts are made out of stock round 40mm brass, epoxy ‘PCB’-, and steel sheet. All the parts like bearings, gears and shafts, are all standard catalog parts and can be purchased worldwide through internet, for example at Sterling Instruments , RS components, Conrad or any other small drive components supplier. A fully detailed parts list with complete ordering details comes with each set of plans.
Suitable for any rolling radio controlled vehicle like trucks, cars & tanks. The gearboxes can be powered by gasoline- or nitro engines, and are suitable for models up to 1/6 scale. Suitable for an estimated max input power of 1.5kW and a max input rpm of 15k ( for example 5cc nitro, 20cc 2-stroke, or 30 cc 4-stroke, gasoline ). Currently a range of 4 gearboxes is available; a tank transmission with 2 speeds forward 1 reverse, another tank gearbox-transmission with dual clutch and reversible track direction, a 2-speed clutch operated gearbox (configurable as a reverse-neutral-forward, or a low-neutral-high setup), and a 3 speed gearbox (configurable as a 1st-2nd-3rd gear, or a reverse-forward-overdrive setup). These gearboxes can be used modularly. By coupling them together, one creates a 4, 6 or 9 speed transmission. Or for example a 3-speed tank gearbox. (See pictures at bottom of page)
Product range ( capacity and power power classifications )
CT1, especially designed for tracked vehicles, like large scale model tanks.
It has 2 output shafts, fully controlled by 2 servos. Suitable for tracked vehicles up to 30kg
CT2, makes your RC car or truck go reverse or up to 1.5x as fast, and gives you a controllable clutch.
It’s a universal transmissions with a controllable clutch and 2 selectable speeds, controlled by one servo. Suitable for power levels 500 to 750 Watts (1.0 HP)
CT3, a universal 3-speed transmission, with 3 selective speeds controlled by one servo.
Configurable as a 3-speed gearbox for your car or truck, or as a 2 speed with reverse. The CT3 can be used in combination with the CT1 and CT2. Suitable for power levels 500 to 750 Watts (1.0 HP)
CG, a universal tank gearbox with 2 controllable clutches and build in 3-speed gearbox (reverse, low, high). For use in big scale tracked vehicles.
This classic transmission is used in my first tank projects. Suitable for tracked vehicles up to 30kg.
CG2, a universal tank gearbox with 2 controllable clutches and build in 3-speed gearbox (reverse, low, high). For use in big scale tracked vehicles.
This transmission is a MkII version of the CG. Suitable for tracked vehicles up to 50kg.
CG3, a universal tank gearbox with a double differential steering system, 3 speed forward and 3 speed reverse gearbox. For use in big scale tracked vehicles. Suitable for tracked vehicles up to 150kg.
For more heavy transmissions see this page
(Click on picture to see larger image)
Combination examples of the CT’s.