Wednesday, December 21, 2011

Drawings/Sketches

Servo/Motor
- The servo/motor is a very simple piece of VEX equipment. It will be attached using two 1/4" bolts and two 1/4" screws directly to points A and B (see drawing below). The drive shaft will then be attached to point C (see drawing below) which will allow it to move or rotate a certain piece of equipment. The wiring of the servo/motor will be easily workable. The person in use of the servo/motor needs to simply connect the wire clip to the Microcontroller which will supply the servo with power.

Isometric View

Exploded View

Right Side View

Top View

Front View

Notes
- Each servo/motor is mounted to a metal plate using two 1/4" bolts and two 1/4" screws.
- Make sure they are mounted very tightly to ensure the success of their capabilities.
- Always mount a servo/motor using both screw holes to establish a firm base.
- Do not attach a servo to a motor.
- Any open wiring should be covered with electrical tape and a professor should be informed.
- Any cracks or malfunctions should be reported to the professor. Stop all work with the servo/motor if this occurs.

Assembly

Hull Assembly Steps
1.      Connect four 1x25 hole plates by a  5x1x25 plate using four ¼” bolts and four ¼” screws. Bolt in on bottom and top corners.
2.      Attach two 2x25x1 hole plates parallel to the 5x1x25 plate and attached to the ends of the 1x25 hole plates.
3.      Attach the corners of the square hull by using two ¼” bolts and two ¼” screws on each corner.
4.      Attach the ends of the 1x25 hole plates by using one 1/4'” bolt and one ¼” screw.
5.      Glue three floaters under the 2x1x25 and the 5x1x25 plates.

**Rough Hull Assembly Steps Required In Order to Understand Electronic** **Assembly More Accurately**

Electronic Assembly Steps
1.      Place the VEX Camera to the middle of the bridge (upper 5x25 plate) aligned with the slingshot.
2.      Bolt down VEX Camera to the 5x25 plate using two ¼” bolts and two ¼” screws.
3.      Place the Microcontroller to the left of the camera (if facing the back of the VEX Robot).
4.      Bolt down using two ¼” bolts and two ¼” screws.
5.      To ensure safety and optimal stabilization, bolt the outer parts of the Microcontroller.
6.      Each device : claw, slingshot, propulsion (2), tank tread, will use a servo or motor.
7.      Servos are to be attached by using two ¼” bolts and two ¼” screws. These must be bolted in tightly and secure or the servo will not function with its maximum output.
8.      Motors are to be attached using two ¼” bolts and two ¼” screws. Like the servos, these must be bolts down tightly and properly fitted to fit the hull design.
9.      Antenna is to be attached to the bridge (5x25 plate).
10.  Antenna should be secure and away from other electronic devices if possible.
11.  Attach the antenna using a ¼” bolt and ¼” screw.
12.   Receiver Module is to be placed on the right of the camera.
13.  Bolt down receiver module using four ¼” bolts and ¼” screws.
14.  All 3-wire servos are to be electronically attached to the motor port on the Microcontroller.
15.  All 269 motors are to be electronically attached to the motor port on the Microcontroller.
16.  To ensure safety and durability of materials DO NOT attach any motors to servos when power is emitted. This could cause damage of the item or a circuit to short.
17.  In order to power all these devices the transmitter battery and power pack must be charged.
18.  Charge these devices separately to ensure battery life and stability.
19.  Plug in the charger to any house-hold outlet.
20.  Connect the power pack or transmitter battery to the charger. They will individually take 4+ hours to charge; let them charge!

Monday, December 19, 2011

Plan of Procedures (Listed)

Parts List
Item
Description
QTY
Remarks
1
Hull Body
1
Plates, nuts, bolts, washers
2
Floatation
3
Styrofoam
3
Propulsion chain
2
Gears, chain, bearings, driveshaft
4
Arm
1
Plates
5
Slingshot Ramp
1
Plates, nuts, bolts
6
Slingshot Struts
2
Plates, nuts, bolts
7
String Scissors
1
Scissors, gears
8
Tank Tread Drop
1
Tank tread, tank wheels, rubber flaps
9
Logic System
1
Motor controllers, microcontroller
10
Motors
3
269 2-wire
11
Servos
2
3-wire
12
Propellers
2
Propellers, bearings, driveshaft
13
Antenna
1
Linked to Transmitter

                                                   Equipment and Tools List      
Item
Description
Use
1
Sandpaper
Shape Styrofoam
2
Scissors
Cut string
3
Screw driver
Assembly
4
Socket wrench
Assembly
5
Allen wrench
Assembly
6
Wire Cutters
Assembly of Servos, Motors, Logic System
7
Wire Strippers
Assembly of Servos, Motors, Logic System
8
Gloves
Protection During Assembly
9
Power/Current Tester
Ensure Accurate Setup
10
Electrical Tape
Protection From Wires

Materials List
Item
Description
QTY
Size
Remarks
1
Styrofoam
10
2x3x10”
Floatation
2
Steel Chassis
1
25x2x2
VEX Robotics kit
3
Plates & Bars
14
Standard
VEX Robotics kit
4
Steel Angles
6
Standard
VEX Robotics kit
5
Steel C Channels
6
Standard
VEX Robotics kit
6
Steel Gussets
12
Standard
VEX Robotics kit
7
Gears, Rollers & Clutches
25
Standard
VEX Robotics kit
8
Collars, Shafts & Bearings
70
Standard
VEX Robotics kit
9
Standoffs & Spacers
66
Standard
VEX Robotics kit
10
Screws, Nuts & Washers
408
Standard
VEX Robotics kit
11
2-Wire Motor 269
4
Standard
VEX Robotics kit
12
Shaft Collar
21
Standard
VEX Robotics kit
13
Shaft
4
2”
VEX Robotics kit
14
Shaft
6
3”
VEX Robotics kit
15
Shaft
1
4”
VEX Robotics kit
16
Bearing Flat
20
Standard
VEX Robotics kit
17
Gear
18
12-84T
VEX Robotics kit
18
Omni-Wheel
4
5”
VEX Robotics kit
19
Wheel
4
4”
VEX Robotics kit
20
Traction-Wheel
4
1.25”
VEX Robotics kit
21
Bar
2
25 hole
VEX Robotics kit
22
Plate
1
5x15
VEX Robotics kit
23
Chassis bumper
2
15 hole
VEX Robotics kit
24
Chassis Rail
4
16 hole
VEX Robotics kit
25
C-Channel
3
1x2x1x20
VEX Robotics kit
26
Screw
100
.25”-.75”-1”
VEX Robotics kit
27
Nut
100
Standard
VEX Robotics kit
28
Balsa Wood
5
Varying
VEX Robotics kit
29
Standoff
18
3”
VEX Robotics kit
30
Shaft Spacer
14
8mm
VEX Robotics kit
31
Bearing Pop Rivet
50
Standard
VEX Robotics kit
32
Motor Controller 29
4
Standard
VEX Robotics kit
33
Robot AA BatteryHolder
1
Standard
VEX Robotics kit
34
Cortex Microcontroller
1
Standard
VEX Robotics kit
35
Rack Gear
8
19 Tooth
VEX Robotics kit
36
Worm Gears
4
Standard
VEX Robotics kit
37
Worm Wheel
4
Standard
VEX Robotics kit
38
Differential Frame
1
Standard
VEX Robotics kit
39
Bevel Gear
7
24 Tooth
VEX Robotics kit
40
Tread Links
140
Standard
VEX Robotics kit

Supply List
Item
Description
QTY
Size
Remarks
1
Glue
1
Tube
Attaching Styrofoam
2
Balloon
10
Standard
Covers Servos and Motors
3
Scissor Blades
2
4”
Used to Cut String
4
String
5
6”
Applies Tension to Slingshot
5
Twist ties
8
Standard
Fastening Balloons
6
Propeller
2
4” D
Propulsion and Steering
7
Ping Pong Ball
5
Standard
Incorporated In Challenge
8
VEX claw
1
Standard
VEX Robotics kit
9
Tie Wraps
75
4”
Assembly
10
Rubber Tube
2
18”
Slingshot