Collapsible Light Box For Those Short On Space And Cash

Step 3 Label panels and draw tabs

With the joints touching I measured out 3" notches and drew my line across both panels to ensure that everything would fit together nicely. For someone who is less than precise when it comes to measuring, this is a great technique to ensure a good fit. I then shaded in the notches that I wanted to cut out with my exacto knife. I did this to keep from cutting out the wrong notch accidentally.