Activity 1.1.1a Simple Machines

Device Construction

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

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

Need an image w/o screw components

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

Calculating mechanical advantage of inclined plane

Need image

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

Calculating mechanical advantage of inclined plane

Need image

Use this text box (Arial, 12 pt) and symbols below to quickly get startedColor = R: 175; G: 30; B: 45

Step 1: Description of step (This will be the slide title in outline)

Assembly Styles

Lines and circles2 ptR: 175G: 30B: 45

Bar 1x25 (Cut to 8 in.)

Bar 1x25 (Cut to 8 in.)

Use the correct part name from equipment listLabel only non-obvious parts,the Equipment List should be used as the main guideAvoid extra text to allow more visual-based instructionsAvoid text on the image where possible See exception belowUse lines without arrowheadsSnap should be turned off to allow precise line placement

Text: Arial, 12 pt

Bar 1x25 (Cut to 5 in.)

Example exceptions:

Lock Bar