So, here is my personal cardboard folder. Let's go!
PS: sorry, but no notes on the pictures, for now. I don't know if it depends my ISP's or Istructables' issue, but everything else works fine, notes simply don't save.
Step 1: Materials and Tools
- a large piece of cardboard (medium-to-high weight)
- brush (to spreading the glue)
- 2 paper fasteners
- 20 cm of string
- candle or lighter
The colors aren't important, follow your taste.
Step 2: Measurements
First of all, start measuring from a corner this sequence: short side + 1 cm, 1 cm, 1 cm, short side + 1 cm, 1 cm, 1 cm, 2-3 cm. This allow some room for the sheets. From the same corner, but along the other side, measure: 2-3 cm, 1 cm, 1 cm, long side + 1 cm, 8-10 cm.
Fold the cardboard along the last mark on both sides and cut the creases. If you have a thick cardboard, the ruler may help.
Once you obtain the smaller sheet, fold in both directions from every mark. This will make easy the construction.
Step 3: Cutting
Then fold the extending parts like the fourth picture.
Step 4: Gluing
Step 5: The "lock"
Find a suitable place for bot disk, one of the body of the folder (near the center) and the other on the upper flap. Mark both center through the holes and punch another pair of holes like you've done before.
Use the fasteners to keep together the folder and the disks, then take the string and tie a sliding knot (see pics if you don't know how to do this). Tightens the knot around the upper flap's disk.
To lock the folder, simply wind the free end of the string around the main body's disk with 2 or 3 turns.