activity 1.1.1a simple machines device construction © 2012 project lead the way, inc.principles of...
TRANSCRIPT
Activity 1.1.1a Simple MachinesDevice Construction
© 2012 Project Lead The Way, Inc.Principles of Engineering
Presentation includes: instructions for building a simple machines device and measuring mechanical advantage
Base Equipment
Part Name Quantity
Nut 8-32 Keps
2
Screw 8-32 x 0.375"
2
Base Plate 13x28
2
Step 1: Assemble the Base
Resistance Equipment
Part Name Quantity
3” Drive Shaft 2
2” Drive Shaft 1
4” Wheel 2
Shaft Collar 8
Bearing Flat, Delrin 2
Large Spacer 4
Square Plate 5x5 2
Plus Gusset 3
Step 2: Assemble the resistance force
Lever Equipment
Part Name Quantity
Nut 8-32 Keps
2
Screw 8-32 x 0.375"
2
Bearing Flat, Delrin
2
Square Bearing Plate
1
Bearing Pop Rivet
2
Shaft Collar
3
Bar 1x25
1
3” Drive Shaft
1
Step 3: Assemble the Lever
Calculating mechanical advantage with the lever
Measure resistance
Measure distances
Measure effort
Wheel and Axle Equipment
Part Name Quantity
Bearing Pop Rivet
4
Shaft Collar
4
12” Drive Shaft
1
Bearing Flat, Delrin
2
Large Spacer
3
Track
48
Large Chain Sprocket
1
Medium Chain Sprocket
1
Add supports and string
Step 4: Assemble the wheel and axle
Calculating mechanical advantage of the wheel and axle
Loop string over wheel and axle in opposite directions
Pulley EquipmentPart Name Quantity
Nut 8-32 Keps
2
Screw 8-32 x 0.75"
2
Bearing Flat, Delrin
4
Shaft Collar
6
Bearing Pop Rivet
4
Spacer
1
1” Standoff
1
[G12] 12 Tooth Gear
2
[G36] 60 Tooth Gear
1
[G60] 60 Tooth Gear
1
[G84] 84 Tooth Gear
1
Step 5: Assemble the pulley system
Calculating mechanical advantage of the pulley
Fixed Block and tackleMoveable
Inclined Plane Equipment
Part Name Quantity
Nut 8-32 Keps
2
Screw 8-32 x 0. 75"
2
Chassis Rail 1x25
1
Inverse Slotted Angle 1x28
1
2” Drive Shaft
1
Shaft Collar
3
Spacer
2
Plus Gusset
1
Step 6: Assemble the inclined plane
Screw Equipment
Nut 8-32 Keps
11
Screw 8-32 x 0. 75"
11
Chassis Rail 1x25
4
19 Tooth Rack Gear
3
4” Drive Shaft
1
Shaft Collar
3
Large Spacer
2
Spacer
1
Bearing Block
2
Rack Gear Box Bracket
1
Angle Gusset
1
Slide Bar
1
Worm Gear
1
1” Standoff
2
Track
48
Large Chain Sprocket
1
Step 7: Assemble the screw