Equilibrate System upgrade

EQUILIBRATE SYSTEM UPGRADE

Systems Design Review

Group Members David Lahn: Project Manager/Camera

Structure Design Sado Borcilo: Camera Structure Design Diana Rodriguez: Foot Plate Track Design Natalie Ferrari: Foot Plate Analysis and

Design

1. Customer Needs Review2. Separate into Components3. Concept Proposals4. System Concept Proposal5. Set Target Specifications6. Proposed Schedule

Systems Design Review Agenda

Function Decomposition

1. Foot Plate Analysis and Design2. Foot Plate Track Design 3. Camera Structure Design

Upgrades to Improve System

CriteriaCurrent DesignProposed Designs Compilation

Foot Plate Analysis and Design

Foot Plate CriteriaFunction:1. Support weight of subject

a. 1000 lbs (500 lbs per plate)

2. Maintain similar performance to currenta. Deflectionb. Maximum Stress

Boundary Conditions and Force

Top

Bottom

3.95

2.95

1” diameter0.75 from top0.75 from side

Current Foot Plate

Footprint Dimensions: 14.95 in x 7.95 inThickness: 0.375 inDensity of 6061-T6: 0.0975 lb/in^3

Weight = 4.35 lbs

Maximum Stress = 7,316 psiMaximum Deflection = 0.0185 in

Foot Plate DesignsPossible Design Change Avenues:1. Thickness

a. Aluminumb. Reduce to 0.25” from 0.375”

2. Materiala. Steel Alloyb. Use thickness of 0.125”

3. Geometrya. Drill out Hole Patternb. Mill out Material (through 0.25”)c. Mill out Material (through all)

Change Thickness


Weight = 2.90 lbs


Change Material: ASTM A36 Steel

Footprint Dimensions: 14.95 in x 7.95 inThickness: 0.125 inDensity of ASTM A36: 0.28 lb/in^3

Weight = 4.21 lbs


Change Geometry: Drill out Holes


Weight = 4.15 lbs

Maximum Stress = 8,377psiMaximum Deflection = 0.0199 in

Change Geometry: Mill out Material (Through 0.25”)


Weight = 2.68 lbs


Change Geometry: Mill out Material (Through All)


Weight = 1.85 lbs


Analysis ComparisonCurrent Design 1

Segment Thickness ReductionSelection Criteria Weight Rating Notes Wtd Rating Notes WtdWeight Reduction 30% 5 4.35 lbs 1.50 7 2.9 lbs 2.10

Deformation 25% 5 0.0185 in 1.25 3 0.0594 in 0.75Maximum Stress 25% 5 7,316 psi 1.25 3 15,861 psi 0.75

Cost 15% 5 $ 0.75 5 $ 0.75

Ease of Use 5% 5use pen in notch cut

out to remove

0.25 6 use cut out to remove 0.30

Total Score 5.00 4.65Rank 3

Design 2 Design 3Segment Change to Steel Drill out Holes

Selection Criteria Weight Rating Notes Wtd Rating Notes WtdWeight Reduction 30% 6 4.2 lbs 1.80 6 4.15 lbs 1.80


Cost 15% 6 <$ 0.90 4 $$ 0.60

Ease of Use 5% 6use pen in notch cut

out to remove

0.30 7 use holes to remove 0.35

Total Score 3.50 5.25Rank 5 1

Design 4 Design 5Segment Mill out Material (thru 0.25") Mill out Material (thru all)

Selection Criteria Weight Rating Notes Wtd Rating Notes WtdWeight Reduction 30% 8 2.68 lbs 2.40 9 1.85 lbs 2.70


Cost 15% 3 $$$ 0.45 3 $$$ 0.45

Ease of Use 5% 7 use cut outs to remove 0.35 7 use cut outs

to remove 0.35

Total Score 5.20 4.00Rank 2 4

Moving Forward:1. Optimize drill and mill

designs, determine best configuration

2. Source pricing for each method

3. Make final decision on plate design

Required Functions• Enable West/East (W/E) Adjustment of Foot Plates.• Allow User to Access Foot Plates• Maintain Alignment of Foot Plates

Proposed Concept

Foot Plate Track Design

Proposed Design Allow W/E Adjustment

Unextended Fully Extended

Note: Movement is limited by width of foot plate.

• W/E track is perpendicular to the North/South (N/S) track.

• W/E track enters side of foot plate base at height to allow base to sit on the ground to protect against vertical bending.

• W/E movement is limited by width of foot plate base.

• Two W/E tracks are used to protect against horizontally.

• Will probably add less than 1 pound of additional weight.

Split into required functionsMaintain Camera Orientation

Maintain Orientation LayoutsMaintain and adjust Camera HeightCamera structure portabilityMaintain Camera Stability

Camera Structure Selected Concepts Compilation

Camera Structure Design

Maintain Camera Orientation Function:

Maintain Camera X and Y position from the footpad across multiple set ups.

Priorities: minimize human error, weight. Concepts

A B C DOrginal

Design 0 Design 1 Design 2 Design 3Segment Current Retratable Tape Wireless/laser Measure Floor Mat Shadowboard

Selection Criteria Weight Rating Notes Wtd Rating Notes Wtd Rating Notes Wtd Rating Notes Wtd

Weight 25% 5 * 1.25 6 * 1.50 6 * 1.50 3 0.75Aesthetics 20% 5 1-10 1.00 6 1-10 1.20 6 1-10 1.20 5 1-10 1.00Stability 15% 5 * 0.75 5 * 0.75 5 * 0.75 5 0.75

Set up time 10% 5 5min 0.50 1 * 0.10 1 * 0.10 1 0.10Adjustablity 10% 5 Y 0.50 5 0.50 5 0.50 5 0.50Functionality 10% 5 Y 0.50 1 0.10 1 0.10 5 0.50

Cost 10% 5 * 0.50 4 * 0.40 1 * 0.10 5 0.50

100%Total Score 5.00 4.55 4.25 4.10

RankContinue? Yes No No No

Maintain Orientation Layouts

Function: Maintain proper camera locations

Priorities: minimize material (weight), aesthetics Concepts

A B COrginal

Design 0 Design 1 Design 2Segment Current Y-Shape Directors Chair

Selection Criteria Weight Rating Notes Wtd Rating Notes Wtd Rating Notes Wtd

Weight 25% 5 * 1.25 6

Reduction of 13.5 inches

material (1.5lbs) 1.50 5 * 1.25

Aesthetics 20% 5 1-10 1.00 6 1-10 1.20 5 1-10 1.00Stability 15% 5 * 0.75 5 * 0.75 5 * 0.75

Set up time 10% 5 5min 0.50 5 * 0.50 5 * 0.50

Adjustablity 10% 5 Y 0.50 5 0.50 1

Does not allow for independent camera

height 0.10Functionality 10% 5 Y 0.50 5 0.50 5 0.50

Cost 10% 5 * 0.50 5 * 0.50 5 * 0.50

100%Total Score 5.00 5.45 4.60

RankContinue? No Yes No

Maintain and Adjust Camera Height

Function: Maintain and adjust Camera Z position Priorities: minimize human error, weight.

ConceptsA B C

OrginalDesign 0 Design 1 Design 2

Segment Current Telescoping Pole Static pole, camera slides Internally

Selection Criteria Weight Rating Notes Wtd Rating Notes Wtd Rating Notes Wtd

Weight 25% 5 * 1.25 7 * 1.75 7 * 1.75Aesthetics 20% 5 1-10 1.00 5 1-10 1.00 7 1-10 1.40Stability 15% 5 * 0.75 5 * 0.75 5 * 0.75

Set up time 10% 5 5min 0.50 5 * 0.50 5 * 0.50Adjustablity 10% 5 Y 0.50 5 0.50 5 0.50Functionality 10% 5 Y 0.50 5 0.50 5 0.50

Cost 10% 5 * 0.50 3 * 0.30 4 * 0.40

100%Total Score 5.00 5.30 5.80

RankContinue? Yes No Yes

Camera Structure Portability Function:

Allow for structure portability Must disassemble into 61” x

48”x 8” carrying case Priorities: minimize human

error, weight. ConceptsA B C D

OrginalDesign 0 Design 1 Design 2 Design 3

Segment Current TentPole Telescoping Hinges


Weight 25% 5 * 1.25 6 * 1.50 6 * 1.50 6 1.50Aesthetics 20% 5 1-10 1.00 6 1-10 1.20 6 1-10 1.20 5 1.00Stability 15% 5 * 0.75 5 * 0.75 5 * 0.75 5 0.75

Set up time 10% 5 5min 0.50 5 * 0.50 5 * 0.50 5 0.50Adjustablity 10% 5 Y 0.50 5 0.50 5 0.50 5 0.50

Functionality 10% 5 Y 0.50 5 0.50 5 0.50 5 0.50Cost 10% 5 * 0.50 5 * 0.50 3 * 0.30 5 0.50

100%Total Score 5.00 5.45 5.25 5.25

RankContinue? Yes Yes Yes Yes

Maintain Camera Stability Function:

Allow for Camera Stability Priorities: Minimize Camera Movement,

Minimize weightConcepts

A B C DOrginal

Design 0 Design 1 Design 2 Design 3Segment Current Tripod Base V shaped Base Connecting bars elevated


Weight 25% 5 * 1.25 5 * 1.25 5 * 1.25 5 1.25

Aesthetics 20% 5 1-10 1.00 6 1-10 1.20 5 1-10 1.00 5Tripping Hazard? 1.00

Stability 15% 5 * 0.75 6 * 0.90 6 * 0.90 6 0.90Set up time 10% 5 5min 0.50 5 * 0.50 5 * 0.50 5 0.50Adjustablity 10% 5 Y 0.50 5 0.50 5 0.50 5 0.50

Functionality 10% 5 Y 0.50 5 0.50 5 0.50 5 0.50Cost 10% 5 * 0.50 4 * 0.40 5 * 0.50 5 0.50

100%Total Score 5.00 5.25 5.15 5.15

RankContinue? Yes Yes Yes Yes

Solidworks Model

Comparison of Proposed vs. current

Specifications Setting Discussion

1/20 Design Review1/23 Concept Selection1/27 System Design Completion2/3 Material Sourcing Completion2/17 Detailed Design Completion

Proposed Schedule

Discussion/Questions?

Documents

Equilibrate System upgrade