mike fuqua colby janisch ryan kobos steve opsitnick joey tordella
DESCRIPTION
SE-6000 Outdoor Safety Shower Shell. Mike Fuqua Colby Janisch Ryan Kobos Steve Opsitnick Joey Tordella. Sponsor Goal / Project Scope. Improve existing SE-6000 safety shower to be more appealing to market Reduce costs and labor Update/improve current design of SE-6000 Outdoor Safety Shower - PowerPoint PPT PresentationTRANSCRIPT
Mike FuquaColby JanischRyan KobosSteve OpsitnickJoey Tordella
SE-6000 OutdoorSafety Shower Shell
Sponsor Goal / Project Scope
Improve existing SE-6000 safety shower to be more appealing to market
Reduce costs and labor
Update/improve current design of SE-6000 Outdoor Safety Shower
Focus on improving shell and seal
Improve insulation
18 x 3’’ ID PVC pieces Long assembly time Difficult maintenance Custom made for
various options
Current Shell Design
Wants and Requirements
Speakman’s Requirements– Easy Access Shell– No painting– Modular– Weatherproof– Retain durability– Minimize cost
Customer Wants
Final Rate ofRanking Importance
12345678910
2.32.10.8
25.617.416.9
paintminimal piecesnon hazardous
easy accessaesthetics
16.39.95.23.5
costdurability
multiple optionsease of assembly
Wants
weather proofing
Key Metrics
Metrics % Target value1 Cost 14.32 $2502 Water tightness 12.16 1.03 UV resistant 11.59 1.04 Temperature range 11.51 -50 to 150 F5 Assembly time 11.47 15 min6 Thermal conductivity 10.59 = current7 Number of options 7.73 5.08 Number of pieces 7.58 6.0
Rate ofImportance
Benchmarks
ABS plastic shell Vacuum molded Clamshell seal
Pros– Easy assembly– Less costly than PVC
Cons– Clamshell seal– Not watertight
Forming Methods
Structural Foam– Very precise– High stiffness ratio– Very expensive
molding and tooling costs
Vacuum Forming– Accurate– Low cost– All necessary
properties are possible
Sealing and Fastening Methods
Gaskets– K profile EPDM– P profile EPDM– High density PVC foam– EPDM foam rubber– Polyurethane foam
rubber– EPDM, Neoprene, and
SBR foam
Fasteners– Latches– Slide Pins– Zip ties– Spring loaded clamps– Ratcheting ties– Compression pins– Bolt and Fastener
Concept Selection
Vacuum formed outer casing ABS plastic Internal gasket seal Reusable nylon rivets Pre-slit Armacell pipe
insulation
Incorporate all options into shell
Use rounded edges to avoid sharp corners
Part mating
Exterior Shell Design
Sealing Testing Gaskets and grommets
tested for water tightness under 4.5 GPM for 30 minutes
Gasket MaterialCost
(per foot) Width Initial ThicknessCompressed
ThicknessWater
Resistance NotesK-Profile EPDM $0.410 7/32" 0.125" 0.100" Passed rated to -40FP-Profile EPDM $0.410 7/32" 0.219" 0.080" Passed rated to -40FHigh Density PVC Foam $0.074 1/4" 0.188" 0.061" Passed rating not notedPolyurethane Foam Bubber $0.075 3/4" 0.125" 0.046" Failed open and closed cellEPDM Foam Rubber $0.288 3/4" 0.125" 0.068" Passed rated to -40FEPDM and Neoprene and SBR $0.146 3/4" 0.125" 0.074" Passed did not recover from compression
Water Sealant Testing
Sealing Selection
¾” wide by 1/8” thick EPDM Closed Cell Foam Strip– Temperature rating -90o to 257oF– Self adhesive backing: Temperature rating
-40o to 250oF
Rubber Lip Seal Grommet
Prototype
• Cheaper than existing shell by over $160/unit
ABS Shell
EPDM Gasket
Foam InsulationHeat Tracing Tape
Internal Pipe
3.25”
Prototype vs. Competition
Similar shell design New innovative sealing
method
New fastening method
Better sealing of protrusions
>
Fix problems with dimensions Test in outdoor environment Prepare assembly instructions to
decrease factory installation issues and reduce production time
Develop shipment method Begin production in spring 2006
Path Forward
Questions
?THE MOON
RULZ #1