Now I just got to get around to building me a light box
Very easy project and took about an hour or so at MAX. All you need is a hacksaw or mitre box, one sheet of sandpaper and pvc glue. I realized that the entire frame hinges on the corners. This is what you make and glue up. Once that is done you just cut lengths of pipe for the legs and the "crown" or top of the frame. That simple.
Here is a pic of the corner. It is composed of a TEE and and ELBOW (both the non-threaded kind, just smooth on the insides) and a 3 or 4 inch length of pipe. The TEE and ELBOW are oriented at 90 degrees. The elbow is for the legs, and the tee is for the crown.
Here is how all four corners will finally look. CAUTION HERE...remember that each corner is unique and has a different way for the TEE to face. Make sure you get it right BEFORE YOU GLUE IT UP !
Now you just use the straight lengths of pipe for the crown (4 pieces) and the legs (4 pieces). Realized that you can cut any length you feel comfortable with. I cut 2 ft and 3 ft lengths. You will want to just run the edges and inside of the cut over with the sandpaper to clean it up. If you want you can buy two more TEEs (like .36 cents each at HD) and you can EXTEND the crown and make a huge rectangle of it. I put the 3ft sections together and got a box of 6 ft x 3ft x 2ft. So it turns out to be a very flexible design. Plus you can take it all apart in seconds and store it in the garage or a closet.
Finally I just arranged the 4 lights I got from HD. One on each side and two on top. The lights are the clamp on aluminum reflector stuff 8 1/2 inch diameter for like 8 bucks. The bulbs I got were on sale, 4 for 12 bucks (CF Daylight bulbs). So the lights were THE most expensive part of the deal. The tees and elbows as I said are .36 cents each, a 10 ft length of 3/4" pvc pipe was $2.40 (used 3 of them). The glue was around 3.50.