Robotc RECBOT Instruction Manual

RECBOT 1.0 • 1
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
RECBOT BUILDING
INSTRUCTIONS
USING THE
VEX PIC

RECBOT 1.0 • 2
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
1Collect parts and tools from the lists below:
Materials Quantity
Screw, 8-32 x 1/4” Long 42
Screw, 8-32 x 1/2” Long 6
Screw, 8-32 x 3/8” Long 9
Motor Screw, Long [1/2”] 6
Nut, 8-32 Keps 37
Shaft, 3” long 6
Shaft, 2” long 2
Shaft Collar 17
4.6mm Plastic Spacer 10
Bearing, Flat 15
Bearing Pop Rivets 24
Standoff, 3” Long 4
Standoff, 2” Long 4
Standoff, 1” Long 2
Gear, 12 tooth 2
Gear, 36 tooth 4
Gear, 60 tooth 4
Chassis Rail, 16 hole 4
Chassis Bumper, 15 hole 2
C-Channel, 1x2x1x15 hole 2
C-Channel, 1x2x1x25 hole 1
Plate, 5 x 15 hole 1
Bar, 25 hole 2
Small Low Friction VEX Wheel 4
VEX Microcontroller* 1
VEX Motor w/ Clutch 3
7.2V Robot Battery* 1
Optical Shaft Encoder* 2
Limit Switch* 1
Ultrasonic Rangender* 1
Potentiometer* 1
RF Receiver Module* 1
Receiver Antenna Sleeve* 1
Receiver Antenna Sleeve Holder* 1
* Not included in Protobot Robot Kit
Tools Quantity
Zip Tie, 4” Long 4
Allen Wrench 3/32” 1
Allen Wrench 5/64” 1
Open End Wrench 1/4” 1
Pliers* 1
Hacksaw* 1

RECBOT 1.0 • 3
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
Chassis Construction
2
x2 x4 x8
Building Tip - Using Pop Rivets

RECBOT 1.0 • 4
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
Chassis Construction (continued)
2
x4 x4
1/4”
2”

RECBOT 1.0 • 5
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
2Chassis Construction (continued)
x2 x4 x4
1/4”

RECBOT 1.0 • 6
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
2Chassis Construction (continued)
x8 x8
1/4”

RECBOT 1.0 • 7
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly
x2 x2 x4
1/2” Motor Screws

RECBOT 1.0 • 8
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly (continued)
x1 x4 x4
1/4”

RECBOT 1.0 • 9
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly (continued)
x2x4
2”3”
Building Tip - Shaft Length
The shafts depicted above are the minimum usable lengths. Longer shafts, if available,
can be used to provide some additional support in the drivetrain.

RECBOT 1.0 • 10
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly (continued)
x2 x2 x2
3/8”

RECBOT 1.0 • 11
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly (continued)
x6x2 x4 x8
Building Tip - Using Shaft Collars
60 36

RECBOT 1.0 • 12
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly (continued)
x2 x12

RECBOT 1.0 • 13
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly (continued)
x4
1/4”

RECBOT 1.0 • 14
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
3Drivetrain Assembly (continued)
x4 x4

RECBOT 1.0 • 15
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
4Attaching the Ultrasonic Rangender
x2x1 x2
3/8”

RECBOT 1.0 • 16
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
5Attaching the Battery
x4x1
Building Tip - Using Wire Ties
Multiple wire ties can be connected end-to-end to create a longer strand. Also, keeping the wire ties slightly loose
around the battery will enable you to remove it for charging, but still hold it in place while the robot is moving.

RECBOT 1.0 • 17
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
6Attaching the VEX Microcontroller
x2x1 x2
1/2”

RECBOT 1.0 • 18
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
7Wiring the Battery

RECBOT 1.0 • 19
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
8Wiring the Motors
MOTOR PORT 2
MOTOR PORT 3

RECBOT 1.0 • 20
© Carnegie Mellon Robotics Academy / For use with VEX
®
Robotics Systems
ROBOTC
RECBOT BUILDING INSTRUCTIONS
9Wiring the Encoders
Top wire to ANALOG/
DIGITAL PORT 3
Bottom wire to
INTERRUPT PORT 3
Top wire to
INTERRUPT PORT 5
Bottom wire to ANALOG/
DIGITAL PORT 2