Making a Collapsible Light Box

Front of Light Box

The markup within this cutout is the stencil size that will fit onto the front of the light box.
I usually allow 2cm inside, and 1cm outside from where the stencil will sit.

Side Panels

* To cut the top and bottom panels – cut another solid square of cardboard which is the same size as the front window panel.
* Mark off centre point.
* Using the centre measurement, mark off the back of the box for the width of your flash unit.
* Now draw a line from outer corner (which attaches to the front window), to the side point at the back (where your opening will be for the flash unit).
* Note the measurement of this length.
* Now to cut the side panels – same measurement as the side of the front window panel.
* Its length is the measurement that you noted 2 steps back
* Mark off centre point.
* Using the centre measurement, mark off the back of the box to the side measurement of your flash unit.

Back of side panels

* Using some alofoil (the type that you cook with) cut out 4 pieces that are slightly smaller than your cardboard cutouts.
* Over top of this use some clear contact (this is the kind that you cover books with which is sticky on one side) to seal each piece of alofoil to the back of each cardboard cutout.

Sealing each of the side panels

* Using cloth tape seal each of the four side panels.
* Now seal the front window panel.

Your pieces will now look like this:

Putting it together

* Leaving a few millimetres between front window panel, and side pieces – run a length of tape down each of the 4 sides.
* Now turn over the box and do this again on the other side.
* Trim off excess tape.

Your light box will now look like this:

Outside:

Inside:

You now have a light box that will fold flat.

Final product

When you are ready to use, all you need to do is tape the sides together. Use a tape that will peel off easily (I use electrical tape).

Now, here is where you can alter the design to your needs. A handle, or velcroe can be added to assist in holding the box, or to keep the flash in place securely. Lips can be added to the front window of the box, which will assist with changing stencil designs quickly.

Now attach your stencil to the front, and insert your flash unit into the back.

You are ready to go!
Making a Collapsible Light Box

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