Rover 5 tracked robot chassis with adjustable clearance
Rover 5 is a unique and powerful tracked chassis designed by OddBot and produced by DAGU.
Motor rated voltage: 7.2V
Motor stall current: 2.5A
Output shaft stall torque: 10Kg/cm
Gearbox ratio: 86.8:1
Encoder type: Quadrature
Encoder resolution: 1000 state changes per 3 wheel rotations
Tips on using the encoders with sample code can be found here: http://letsmakerobots.com/node/24031
Video indoors autonomous: http://v.youku.com/v_show/id_XMjE5NzkwODA0.html
Video outdoors RC mode: http://v.youku.com/v_show/id_XMjIwMTkxODk2.html
Video mecanum wheels: http://v.youku.com/v_show/id_XMjI2MDAwMDEy.html
Unlike conventional tracked chassis's you can adjust the clearance. Strechy rubber treads maintain tension as the clearance is changed.
The standard chassis comes with two motors and gearboxes. Each gearbox has an optical quadrature encoder with a resolution of 1000 state changes per 3 revolutions of the output shaft (333.33 pulses per revolution).
The chassis can be upgraded to 4 motors and gearboxes with encoders making it ideal for mecanum wheels such as those produced by FINGERTECH.
The chassis is compatible with Pololu's expansion plates for the RP5 chassis. These plates are ideal for mounting hardware on the chassis.
The gearbox angle can be changed in 5 degree increments and adaptors are available allowing standard RC car wheels to be fitted.
Currently we have a PCB designed to allow Arduino development boards (not included) Diecimila, Duemilanove, Nano and Mega to mount easily on the chassis. This PCB includes power supply, motor drivers with current sensing, IR sensors on each corner, 2 small breadboards, a pan/tilt kit with our IR compound eye and a large prototype area under the breadboards where custom circuitry can be fitted.
The photo below and video show the robot using an Arduino Mega which is not part of the kit.
See the attachments for basic dimensions and autonomous sample code.