Designed by: Ethan Sobkowich, Yanshen Zhou, Winnie Lin
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Figure 7, seen below, is a side view of one test specimen, whose material may vary depending on the test. This is how they will be aligned in the jig. The rectangular jigs will be placed in the gap spaces.
*jig can be spring with boards on either side (will remove tolerance error)
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Fig. 7: A 3D model of the specimens glued together
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Source: https://www.youtube.com/watch?v=uLH1MsaHnX4
one design matrix per step
Assembly Procedure
Step 1: Printing
The pieces separate individual specimens and individual components within the specimen. 3D printing was chosen as the manufacturing method as they need to be thin (<1mm) to fit under the paces of the specimen.
Use this GrabCAD file tp print the pieces:
Use PrusaSlicer to print an array of support pieces on the tray. Two of the longer spacing supports are required per specimen and 3 of the spacing supports are required between two specimens.
You may need to change the dimensioning of the support beams to customize it to your specimen.
Print according to the number of specimens that are cured.
Remove the printed pieces.
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Measure and mark the area to be cut on the 3mm birch plywood. Ideally, each length and width should be 0.5cm less than the inner dimensions of the tray. For example, if the inner dimensions of the tray are 19cm by 24cm, then the dimensions of the tray are cut from the plywood should be 18.5cm by 23.5cm.
Use a band saw in the design center machine shop to cut out measured dimensions.
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Item | Amount | Description of Use | Supplier | Total Price |
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1/8” Fiberboard | 2 square ft. | Material for laser cutting. Creates tray. | UW 3D Print Centre | $4.00 + tax |
ABS Printing Filament | 1 kg | 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 | |
Wood Glue | 236mL | For gluing the layers of laser cut fiberboard together. | Canadian Tire | |
Total cost per one fixture (CAD, includes tax) | $51.63 |
generally less walls of text. pictures explain for you, just use the right pictures.