team clean machine final
TRANSCRIPT
©
Tara Finance & MS&E
Ben Mechanical Engineering [email protected]
Marcus Product Design
Chinmay Materials Science
Who We Are What We Do
For everyone who unavoidably uses dirty
sponges to wash dishes, the MainSqueeze is a kitchen appliance that sterilizes
kitchen sponges in-between uses.
©
Heated aluminum ribs accelerate drying UV light sanitizes the sponge
How It Works
©
How We’re Building It Spec Controlled Parts
Processes
Bridge/Rapid Process
• Selective Laser Sintering using ABS plastic for both the top and bottom plastic pieces
• Ultrasonic Welding to join the two parts
Dimensions
• Top Plate: 7.0” x 5.0” x 0.5” • Bottom Plate: 8.0” x 6.0” x 3.0”
Tolerance
• 0.05”
Focus on Plastic Enclosure
©
Picking Our Partners Target Vendors
High impact ABS-like material via SLA: • Qty 25 each (50 parts) = $7,050 • Qty 50 each (100 parts) = $12,800 • Qty 150 each (300 parts) = $28,200
Our Decision:
- Cost - Professionalism/Reliability - Customization
©
Putting the Pieces Together Process Maps
Bottom Case Subassembly - Stack the PCB assembly into the bottom shell and use 4 screws to fasten - Take the power cord, insert into bottom shell and connect it to PCB connector on the PCB - Fix and test rubber gasket seal between power cord and bottom shell for waterproofing
Top Case Subassembly - Take the individual aluminum ribs (2 x6) and insert them into the slots on the Top Cover���- Ensure contact with heating element on PCB Place Top Case Assembly on the Bottom Case Assembly and ultrasonically weld the two together. Conduct final Funtional Test & rework if needed.
©
Making Sure It Works Quality Control
FMEA & CTQ Points for the MainSqueeze: From the FMEA, we found that the two most pertinent features were waterproofing & heating/lighting issues (both consumer safety & product quality). We dug deeper to isolate the more specific CTQ points below. • Ultrasonic welding of top and bottom case
enclosure pieces (product performance) • Top case subassembly - fixing the aluminum ribs
into the plastic enclosure (product safety) • Top case subassembly - ensuring contact with
UV light & heat source on PCB (product performance)
• Waterproofing - rubber gasket seal between power cord and bottom enclosure (product safety)
• Final product test
©
How We’re Testing Final FT Leak Test
1. If needed, add distilled water the test fixture so that the water level is at the fill line.
2. Place the fully assembled MainSqueeze on the lid’s platform.
3. Place the lid and MainSqueeze into the test fixture, and lock it in place by tightening the highlighted nuts.���
4. Turn on the vacuum until the pressure has risen to 1.5 atm.
5. Lower the shelf, so the MainSqueeze is fully submerged in the water. Wait 2 minutes.���
6. Slowly release the pressure by lowering the lever on the side of the test fixture. This should take no less than 10 seconds.
7. While you are releasing the pressure, observe. If any bubbles emerge from the MainSqueeze, the assembly has failed the test. If no bubbles are emerge, the assembly has passed.
8. Close the valve on the side of the device by raising the lever.���
9. Unlock the lid of the test fixture by unscrewing the highlighted nuts, and retrieve the MainSqueeze from the fixture.
©
How We’re Pricing Unit Cost
Budget
MSRP $30
Sell to distributors for $22.85
Targeting COGS of $14.28
Prototype Cost $608.68/ea 25 units PCB $150 Heating Elements $150 Plug $50 Plastic Enclosure $258.68
©
Wrapping It Up Packaging
Distribution
Online
$22.85 60% margin
$1.14 5% margin
$6.00 25% margin
$30.00 Selling Price
$26.09 83% margin
$30.00 Selling Price
$4.91 15% margin (plus subscription fees not factored)
$30.00 110% margin
$30.00 Selling Price
COGS = $14.28
©
What’s Left Next Steps
Learning
• Will it work? – Lab testing • Finding the right vendor – sending
more RFQs
• Design of electronics – Finding and driving the correct light & heat sources
• UL certifications (wet environment + electronic device)
• Funding: • Kickstarter • Generous Relative
• Patents/intellectual Property • Working with Contractors – moving
past the start-up phase
• Timing & Having a Plan
• Product Start Ups
• Otherwise: • Take what we learned into
future projects