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Pololu is an electronics manufacturer and online retailer serving education, maker, and professional engineering industries with products ranging from sensors and motion control electronics to motors and wheels to complete robots.
Pololu supply a range of robot chassis, many of which are perfect for small mobile robots, often allowing your creations to qualify for Mini Sumo competitions.
The Pololu round robot chassis (pictured left) is a compact 5-inch base, laser-cut out of colored acrylic, designed for small mobile robots. This circular chassis is intended for use with the Tamiya twin-motor gearbox, ball caster, and truck tyres.
This chassis base plate is a round piece of 1/8" (3 mm) acrylic with a 5" (127 mm) diameter and cutouts for building a differential-drive robot chassis. The chassis has assorted general-purpose holes and slots that support many configurations of sensors and other robot components.
Pololu have a variety of wheels available for almost any purpose.
In the Pololu Wheels range (pictured right, above) they have a selection of plastic wheels in a variety of sizes and colors. Most are designed for use with 3 mm D-shafts and many can be combined with mounting hubs for use with larger shafts.
Pololu also supply the large DAGU Wild Thumper Wheels (pictured right, below) which are 120mm in diameter and can either be used as replacements or for custom robots that need to traverse complex, rugged terrain.
Pololu's range of motors is wide, and constantly growing. Their brushed DC metal gearmotors will let you choose the optimal torque and speed for your application.
Micro Metal Gearmotors:With a cross section measuring only 10×12 mm, these small brushed DC gearmotors are available in a wide range of gear ratios.
20D mm Metal Gearmotors: These offer a lot of power for their size. The are available in several different gear ratios, from 29:1 to 154:1.
25D mm Metal Gearmotors: available in a wide range of gear ratios—from 4.4:1 to 499:1—and with five different motor options.
37D mm Metal Gearmotors: Measuring 37 mm (1.46″) in diameter, these 12 V motors are the largest and most powerful gearmotors that Pololu carry.
Feetech servos are supplied to us by Pololu. They are great as tiny actuators for small robot mechanisms.
Their low-cost mini servos often have the same output as standard servos, making them compatible with standard-sized servo horns.
The FS5115M is a standard-size analog servo from FEETECH that has an all-metal gear train and delivers extra-high torque normally associated with much more expensive or larger servos.
The FS5106R is a standard-sized servo that has been built by FEETECH specifically for continuous rotation, making it an easy way to get your robot moving.