FIRST Robotics 101

1
FIRST Robotics 101

• Week 1) Gears, Pulleys, Sprockets, Bearings
• Week 2) Motors Controls
• Week 3) Pneumatics
• Week 4) Materials Fasteners
• Week 5) Drivetrain and Framing Options
• Week 6) Arm Winch Options
• Week 7) Team Building

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Materials

• Super Safety Geek!

Plastic Safety Glasses
Man of Steel
Nylon Noose to Drag Him Offstage
Smokn
Transparent Polycarbonate For Protection
Cloak of Bronze
Aluminum Diamond Plate For Solid Appearance
Warlocks
Imprinted with Brass
Titanium Shoes (for Weight Strength) with
Rubber Soles so as not to damage carpet.
Carbon Fiber Framework for lightness
3
Polycarbonate

• Polycarbonate is Bullet Proof Glass (What an
  Invention)

Oh No Not again!
He isnt worried. He has Bullet Proof Glass
protecting him!
Warlocks
4
Materials

• Now Seriously, Lets Talk about Materials.

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Metal Density
Higher Density/Higher Weight
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80/20 Industrial Erector Set

• 80/20 Extruded Aluminum

http//www.8020.net/
7
Skyway Wheels

• Rubber Pneumatic Wheels

Wheel Chair Wheels (Light)
Beadlok Wheels (Grippy)
Yes, Pneumatic Wheels
http//www.skywaywheels.com/
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Polyvinylchloride (PVC)

• PVC Possibilities

Dont Forget Polyurethane Polyethylene Vitron Or
Silicon Rubber
Plastic Plumbing on a Robot? Why not!
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Innovation First

• Speed Controllers/ Operator Interfaces/Robotic
  Controllers

http//www.ifirobotics.com/
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Electronic Parts

• Resistors/Switches/Electronic Boxes Sensors
• Radio Shack
• Allied Electronics
• Newark Electronics

http//www.radioshack.com/
http//www.alliedelec.com/
http//www.newark.com/
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Material Weight

• Homework Assignment

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Fasteners

• Screws, Bolts and Nuts
• Metal, Wood, Set
• Hex, Phillips, Slotted, Star, Allen, Square
• Pan head, Flat Head
• Nuts, Washers, Lock washers
• Nails (prototype only please)
• Tape
• Electrical, Duct, Scotch, Double Backed
• Welds
• Steel
• Aluminum
• Rivets
• Chain Connecting Links
• Master Link
• Half Link
• Collars Ties
• Shaft, Zip Ties, Rope, String
• Adhesives
• Epoxy

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Screws
Flat head Screw Driver for Slotted Screws
Socket Head (Allen Wrenches)
Phillips Head Phillips Head Screw Driver
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• Bolts
• Nuts

Socket Set used To Put On/OFF
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Screw Size Decoding

• Screw Count

• 6-32 is 6/643/32 diameter 32 threads per inch
• 8-32 is 8/64 diameter 32 threads per inch
• 10-24 is 10/64 diameter and 24 threads per inch
• ¼ -20 is 1/4 diameter and 20 threads per inch

Remember Left Loosey, Righty Tighty
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Drill Tap

• Drill Tap
• Why? Create your own screw hole in a slab of
  metal
• Hole is drilled slightly smaller than screw hole
  (use drill and tap sheet) and a tap cuts the
  grooves for the Screw. Literally, the tap threads
  the hole.
• Oil is used to lubricate while threading
• In and Out technique is used to clear metal out
  of tapped hole
• Dies are used to put threads on rods
• Same technique!
• Also, they make threaded rod.

Tap
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Tap Die Sets

• Tap Set
• Tap and Die Set

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Tape Glue

• Tape
• Duct tape is not allowed on the robot to connect
  anything it is against FIRST rules.
• Electrical Tape is only allowed on a robot to
  insulate wires.
• Other tape is allow for decoration of the robot
  only.
• Adhesives (Allowed)
• Super Glue- Loctite
• Epoxy, 2 Parts
• Cement
• Hot Glue

Tread on Wheels Small Sensors etc.
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Welding

• Aluminum Welded Frames are the typical technology
  used in constructing a robot for the following
  reasons
• Removes Screws Nuts from robot
• Removes Brackets from Robot
• Improves structural integrity- nothing gets loose
• Smaller aluminum tubing can be used while keeping
  equivalent strength
• Reduces weight up to 10 lbs.
• Improves look and perceived quality of
  workmanship.

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Riveting

• Rivets
• Aircraft have used rivets since the 1920s and
  1930s to improve aerodynamic performance while
  keeping the same structural integrity.
• Aircraft use aluminum and rivets just like
  Robots. (This is interesting?)

Rivet Gun Cuts and Deforms
Impacted by Rivet Gun
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• Split Collars Clamps for Shafts

Shaft
Collars Keep Wheel on Shaft
Wheel
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Zip Ties
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Roller Chain Links

• Chain Connecting Links

Full Links
Half Links