How to Construct a Robot Part 7: Wiring and Controller Installation Copyright © Texas Education...
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- Slide 1
- How to Construct a Robot Part 7: Wiring and Controller
Installation Copyright Texas Education Agency, 2012. All rights
reserved. 1
- Slide 2
- Basic Robot We are going to construct a robot part by part. The
size and speed will be determined by its part. Later in the
instruction, the size and speed will be determined by the
controller. We will learn how to use a Plan Sheet, gather
information, select the right part, and construct that part.
Copyright Texas Education Agency, 2012. All rights reserved. 2
- Slide 3
- With Plan Sheet, either as one sheet or two sheets, lay out or
draw wiring and controller installation for your robot. Start
gathering information to construct the wiring and installation for
your robot. You can also draw on regular drawing paper. Copyright
Texas Education Agency, 2012. All rights reserved. 3
- Slide 4
- 1. Draw one or as many drawings as needed. 2. Refine or select
the part that is best for the robot. 3. The material might have a
reaction on the robot, so a redraw may be in order. 4. Keep in mind
all the features that are needed (construction strength, speed,
function, purpose, weight). 5. Choose the best one, not necessarily
the best drawing. 6. Choose the best person and the right tool to
make the part. Copyright Texas Education Agency, 2012. All rights
reserved. 4
- Slide 5
- Wiring and Controller Installation Create Wiring Plan Things to
consider: Conceal wire where possible; run wire in pipes, corners,
or underneath platforms. Secure wires with wire-ties to avoid
accidental snags and disconnects. Leave enough slack to the
connectors to facilitate disconnecting wires for maintenance. Most
wires will have factory made connectors and cannot be cut. Secure
both ends working to the middle -- neatly wire-tie and conceal
excess. Note: This assembly uses a vendor made controller system.
For a basic control of a two motor drive system, special
programming is not required. We will utilize the pre- programmed
arcade mode of the controller. Motors are polarized (+/-) and
reversing wire will cause the motor to operate in the opposite
direction. Red wire will be used to indicate the positive (+) wire.
Copyright Texas Education Agency, 2012. All rights reserved. 5
- Slide 6
- Create Wiring Plan Step 1 - Draw wiring diagram on top view of
robot drawing. Determine battery placement. Sufficient room must be
reserved for the battery hold-down strap. The battery must be
placed in a location that has easy access in order to swap
batteries during a competition. The weight of the battery can also
be used in providing balance and traction Determine controller
placement. Be mindful that access to the power switch is necessary
and that it may be necessary to disconnect wires for maintenance.
Copyright Texas Education Agency, 2012. All rights reserved. 6
- Slide 7
- Create Wiring Plan Step 2 - Determine wire lengths. The battery
wire and connector is preinstalled. Battery is installed over the
wheels to provide maximum traction. Wire lengths should be long
enough to enable a neat installation. Copyright Texas Education
Agency, 2012. All rights reserved. 7
- Slide 8
- Create Wiring Plan Step 3 - Label connections. Label motors and
connectors. Show+/- polarity for easier re-connection should
maintenance be necessary. Copyright Texas Education Agency, 2012.
All rights reserved. 8
- Slide 9
- Electric Wire and Controller Installation This section is where
we will implement the wiring plan. Installation Steps: Mount
controller Cut motor wire to length and install connectors Route
wires and wire-tie to robot chassis Connect wires to controller
Install Wi-Fi USB adapters Pair controller to transmitter Test
drive robot Copyright Texas Education Agency, 2012. All rights
reserved. 9
- Slide 10
- Electric Wire and Controller Installation Step 1 - Mount
Controller Mark base to drill mounting holes in base. Copyright
Texas Education Agency, 2012. All rights reserved. Photo Credit::
VEX Robotics, Inc. 10
- Slide 11
- Electric Wire and Controller Installation Step 2 - Mount
Controller Drill holes in base and mount using screws. Copyright
Texas Education Agency, 2012. All rights reserved. Photo Credit::
VEX Robotics, Inc. 11
- Slide 12
- Electric Wire and Controller Installation Step 3 Cut wires to
length. Copyright Texas Education Agency, 2012. All rights
reserved. 12
- Slide 13
- Electric Wire and Controller Installation Step 4 Strip wire and
crimp motor connector onto wire. Copyright Texas Education Agency,
2012. All rights reserved. 13
- Slide 14
- Electric Wire and Controller Installation Step 5 Strip wire and
connect motor wire to controller connector. Copyright Texas
Education Agency, 2012. All rights reserved. 14
- Slide 15
- 1.Remove Hold-down 2.Install Motor 1 on Pin 1 (if using
external motor controller use Pin 2) 3.Install Motor 2 on Pin 10
(if using external motor controller use Pin 9) 4.Replace Hold-down
Electric Wire and Controller Installation Step 6 The controller has
two motor controller circuits. Since wheel motors will consume the
greatest amount of power, it is important put one motor on each
controller circuit. Use external motor controllers if available.
Copyright Texas Education Agency, 2012. All rights reserved. Photo
Credit:: VEX Robotics, Inc. 15
- Slide 16
- Electric Wire and Controller Installation Step 7 - Install
Battery. Copyright Texas Education Agency, 2012. All rights
reserved. Photo Credit:: VEX Robotics, Inc. 16
- Slide 17
- Final Installation steps Step 8 Install the USB WI-FI adapters
both transmitter and receiver. Copyright Texas Education Agency,
2012. All rights reserved. Photo Credit:: VEX Robotics, Inc.
17
- Slide 18
- Final Installation steps Step 9 Pair controller to transmitter
by turning on both units next to each other. Copyright Texas
Education Agency, 2012. All rights reserved. Photo Credit:: VEX
Robotics, Inc. 18
- Slide 19
- Final Installation steps Step 10 Verify that the polarity of
the motors are correct by a test drive. Copyright Texas Education
Agency, 2012. All rights reserved. 19 With cursor on picture, click
on arrow to play video.