Pololu

Pololu 6V 570 Rpm 20 mm DC Motor Carbon Brush

Pololu Ball Caster with 3/8″ Metal Ball 9.5mm

Bipolar/Unipolar NEMA 17 200 Stepper 42x48mm 4V Step Motor

Stepper Motor with 38cm Lead Screw: Bipolar, 200 Steps

Stepper Motor with 28cm Lead Screw: Bipolar, 200 Steps

10:1 Micro Metal Gearmotor HP 6V 3000Rpm

1000:1 Micro Metal Gearmotor HP 6V 32Rpm

5:1 Micro Metal Gearmotor HP 6V 6000Rpm

Big MOSFET Slide Switch with Reverse Voltage Protection (High Power)

Pololu Mosfet RC Switch

Big Pushbutton Power Switch with Reverse Voltage Protection (Middle Power)

DRV8825 Stepper Motor Driver

Force-Sensing Resistor - 0.6'' Diameter Circle - PL-1696

Force-Sensing Resistor - 1.5'' Square - PL-1645

ACS711EX Current Sensor Carrier -31A to +31A

ACS711LC Current Sensor Carrier -25A to +25A

ACS711EX Current Sensor Carrier -15.5A to +15.5A

ACS714 Current Sensor Carrier -30A to +30A

Force-Sensing Linear Potentiometer: 1.4″×0.4″ Strip

ACS715 Current Sensor Carrier 0 to 30A