generally rectangular sections that are 25 mm x 100 mm x 1.6 m-
Overall To-do: -apply feedback to the confluence, detailed and clear manufacturing plain
Designed by: Ethan Sobkowich, Yanshen Zhou, Winnie Lin
...
Maximize number of specimens that can cure at the same time
Can be machined in-house
Minimize time required to manufacture
Maximize adjustability to different size
Minimize costs for materials and manufacturing
-constraints: needs, functional, non-functional
*can organize into checklist
Testing between:
Steel to steel
Composite to composite
Steel to composite
...
how often does the solution need to be replaced on the fixture
6. Degree of Obtrusion
How much the anti-stick solution will alter the dimensions of the fixture and specimen (how thick is the solution)
Parchment Paper | Wax Paper | Saran Wrap | PFTE Tape | Feasibility | ||
|---|---|---|---|---|---|---|
10/10 Ease-of-use -non-functional req. (use survey to evaluate) useWeighting: X2 | Use sheets to cover exposed areas some. Some openings will need to be taped up 7/10 | same *Same as parchment paper 7/10 | cling Cling wrap does not need tape works. Works fine 9/10 | needs Needs to be taped on to all exposed surfaces 6/10 | ||
Effectiveness Weighting: X3 | epoxy Epoxy peels off easily. 9/10 | slightly Slightly worse than parchment paper. 8/10 | same Same as parchment paper 9/10 | epoxy Epoxy needs to be chipped off of tape stickage. Stickage may occur. 5/10 | ||
Affordability | 12 in X 75 ft $4$7.99 CAD @ Canadian Tire | 75 in $4.49 CAD @ Canadian Tire | 25 m $1.79 CAD @ Canadian Tire | ½ “ X 480” $0.79 CAD @ Canadian Tire | ||
Maintenance | Remove tape and paper after each use 7/10 | Remove tape and paper after use7/10 | Remove wrap after each use8/10 | Can reuse multiple times9/10 | ||
Feasibility | Can be found in most retail/grocery stores | Can be found in most retail/grocery stores | Can be found in most retail/grocery stores | Can be found in hardware stores | ||
Level of Obstrusion | *Reference | Thinner than Parchment Paper. | Thinner than Wax Paper. | Thicker than Parchment Paper. |
Results:
Parchment Paper = 41 pts, Wax Paper = 38 pts, Saran Wrap = 45 pts, PFTE Tape = 27 pts
In conclusion, Saran Wrap is the best anti-stick solution because it is the most effective and easy to use, a well as being thinner than all the rest of the materials.
Source: https://www.youtube.com/watch?v=uLH1MsaHnX4
-create eng. design spec. chart
Characteristic | Relation | Value | Units | Verification Method | Comments |
|---|---|---|---|---|---|
Production Cost | < | 50 | CAD | Analysis | Keep track of materials receipts |
Mass | < | 8 | lbs | Test | Weight the tray and all ladders on scale |
Ease of Use | > | 80% | N/A | Test | Ask users to rate ease of use out of 10. Take average rating |
-define effectiveness
Overall: Saran wrap is the best material to use due to its ease-of-use and effectiveness. It is also one of the more affordable options and is easy to maintain.
-other factors: interference with test specimen (wrap thickness)
Assembly Procedure
Step 1: Printing
...
Align first specimen in a corner with the longer side of the specimen touching the shorter side of the curing fixture.
Wedge a support fixture along the specimen to hold the individual pieces in place. Correct placement shown in fig. 4.
Figure 4: The adhesive specimen is shown in blue. The support material is coloured in orange and labelled. They hold pieces on the same level in place.
Place three support pieces perpendicular to the first specimen at each joint to provide support for the next one. Continue placing specimens down until the tray is full or until you are satisfied with the number of specimens. If the tray is not full, wrap a flat piece of wood in saran wrap and place it flat against the last specimen. Put a weight behind the piece for support (i.e. a piece of steel, a block of MDF, a rock, etc.)
Place a flat board on top of the tray and specimens. The flat board should also be wrapped in saran wrap. Place a weight on top of the board.
Bill of Materials
-pictures with assembly
Item | Amount | Description of Use | Supplier | Total Price |
|---|---|---|---|---|
1/8” Fiberboard | 2 square ft. | Material for laser cutting. Creates tray. | UW 3D Print Centre | $4.00 + tax |
ABS Printing Filament | Support material in between specimens and within specimen pieces. | Amazon (if no sufficient supply in Bay) | ||
Saran Wrap | 900cmx30 cm | Prevents epoxy from curing to the fixture. | Walmart | |
3mm Birch Plywood | 20cmx30cm | Applies pressure from the top of curing fixture | E3 Machine Shop |
-bill of materials w/ quantities + descriptions
-some explanation for procedure (decision behind assembly process; why?)
Material Specifications