Carry Your Weight: Cardboard Portfolio
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Posted by ReadyMade
Project by by Zachary Warwas,
A simple modification of the cardboard backpack, our cardboard portfolio was designed with an art or architecture student in mind. Slide sketches and blueprints in the slot, and they’ll be wrinkle-free for life.
Skill Level
Moderate
Active Time
Half a day
Cost
$
- Sheet of cardboard
- 2 2" x 18" pieces of 1 1⁄4" plywood
- 3/8" x 3/4" wood strip cut to the following lengths:
- 4 pc 1" x 16"
- 1 pc 3/4" x 28 7/8"
- 100" fabric strap
- 14 1 1⁄4" wood screws
- 2 1 1⁄2" wood screws
Materials
- Measuring tape
- Power drill and bits
- Utility knife
- Metal ruler
- Pencil
- Bone folder (optional)
Tools
In each 16" wood strip, pre-drill four holes: a hole 2" from each end, then one 6" from each end.
Mark a 29 1⁄4" x 47 1⁄2" rectangle on the cardboard, and cut it out with a utility knife and metal ruler.
Lay it down with the long side toward you, and mark vertical lines 18", 20 1⁄4", and 38 1⁄4" in from the left edge. Follow steps 4 through 8 from the backpack project, but note that there are no wood strips on the narrow bottom of the portfolio, so in step 6, just make sure the cardboard is snug. In step 5, omit the leftmost screw; in step 8, omit the middle-right screw
Proceed with steps 9 and 10, measuring up 2 1⁄4" and 6" up from the top edge of the portfolio for the folds in the lid.
To attach the strap, with the closed lid of the portfolio facing away from you, remove the bottom two screws in the right-hand wood strip. Slide one end of the strap beneath the strip and wrap it around twice to secure it. Make sure it exits to the left from beneath the wood strip. Reattach the screws. Remove the bottom two screws from the left-hand wood strip, and slide the strap under it, leaving the desired amount of slack. Reattach the screws. Flip the portfolio around so that the lid is facing you. Remove the bottom two screws in the right-hand wood strip and slide the strap under it. Reattach the screws. Pull the strap to the left side of the portfolio. Remove the bottom two screws in the left-hand wood strip and slide the strap under it, wrapping the strap around the strip a few times to secure it. Make sure the slack on this side equals the slack on the other side. Reattach the screws.
Go off the AutoCAD grid.


















