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During the Detailed Design Phase, our team planned to finish up base testing. In addition, we planned on ordering parts required to build a draft bedside table, and lastly, we intended to schedule a meeting with the Industrial Design team to finalize base design.
We were able to place an order and receive materials needed for the project (wood for our table top and casters). Our team met with the Industrial Design team and decided on final design for the base. We were able to update our bill of materials as well.
Progress Report
What the team plans to accomplish by the Detailed Design Review
- Choose a base design
- Choose a caster configuration
- Choose type of casters
- Bring a prototype of the chosen base
Accomplished Tasks
- Tested various caster configuration and base designs
- Narrowed our selection of designs
- Compared designs to existing bedside tables
- Discussed with the ID Team concerning their thoughts and input
Tasks that remain
Team Assignment
- Decide which casters we're going to use
- Test force on draft bedside table
- Test center of gravity and moments on draft bedside table
Kyle
- Write test plans for testing the draft bedside table
Stephanie
- Update risk assessment
- Work on feasibility for the supporting rod and table top
Kazi
- Update Bill of Materials (BOM)
Melanie
- CAD new design
- Work on feasibility for the supporting rod and table top
Mendy
- Update concept flowchart
- Work on feasibility for the supporting rod and table top
Decisions Made
- Base design
- Caster configuration
Feasibility Analysis
Complete Feasibility Analysis and Prototyping can be found [here]3D Models & Drawings
A 3D model of the bedside table base design was made using Computer-Aided Design software.Base Design 3: Bedside Table Base Design
Bill of Material (BOM)
As of this phase, 2 shielded-casters, and 2 sheets of poplar wood have been purchased. They will be used for prototyping in the Build & Test Prep phase.Test Plans
Purpose
Demonstrate objectively the degree to which the Engineering Requirements are satisfiedTest Plan 1: Ease of Maneuverability (Modified)
Objective: To test two different base configuration with different caster configurations and loads to further our understanding of a final base design.
Needed:
- Base(s) constructed out of 80/20 aluminum bar stock
- Static Casters
- Swivel Casters
- Weights
Experiment setup: Each team member will partake in this experiment. Each member will push the two different base models up and down a hallway with different caster configurations. Each of the two bases will be tested with the following setups:
- Two static casters in the back, one swivel caster in the front
- Two swivel casters in the back, one static caster in the front
- Weight will be applied to the base each time it is pushed (15 lb max.)
Test Plan 2: Caster Cleanability
Objective: Test casters' resistance to dirty surfaces and the ease of cleaning the caster wheels.
Needed:
- Casters
- Dirty surface
Experiment setup: Create a dirty surface
over tile. Run the casters through the dirty surface.
Document the wheel afterwards. Use a cleaning wipe to
clean the wheels. Notate the ease of cleaning and
document the wheel after cleaning. Test for:
- Office Chair Casters
- Rubber Casters
- Nylon Casters
- Polypropylene Casters
Test Plan 3: Caster Ease of Maneuverability
Objective: The ease of maneuverability of different casters on tile and the dirt resistance of each material.
Needed:
- Sheet of wood
- Casters
- Hex nuts
Experiment setup: Screw in the casters
to the sheet of wood. Each member will push the wood
plank with the different casters on tile floor. Notate
qualitative data.
Test for:
- Casters with Nylon Wheels
- Casters with Polypropylene Wheels
Future Test Plans for next semester:
- Ease of Maneuverability (Entire Table)
- Tabletop Loads
- Table Durability Test
- Base Disinfection Test
Design and Flowcharts
The customer requirements have not changed since the Preliminary Detailed Design Review Phase.Requirement --> Component --> Solution for the different parts of the bedside table.
Risk Assessment
No additional risks have been identified.Design Review Materials
LinksDates for the next reviews
- Detailed Design Review - December 4th, 12-1pm (Rochester General Hospital)
- Build & Test Prep Review - Date/Time TBD (location TBD)
Plans for next phase
The individual plans below show each member's tasks for the next phase (Build & Test Prep). The Build & Test Prep phase begins 1/14/18 and ends late January/early February.- Stephanie Chu individual project plan
- Mendy Yu individual project plan
- Kazi Rahman individual project plan
- Melanie Roy individual project plan
Kyle Chrysler will be graduating in December 2018. He will be a consultant moving forward.
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