A $20/20min Commercial Quality Folding Light Box / Light Tent

Step 4 Install The Diffuser

Clean the frames thoroughly to prevent any dirt from getting on the fabric. Cut the fabric about 6 inches larger all the way around and iron it to remove wrinkles. Lay the fabric on the frame and roll spline into the groove on one end.

Stretch the other sides by hand and roll in the spline. If you press your fingers on each side of the frame as you roll the spline in you will create a little slack. If the fabric it too tight the frames will warp upward causing the frame not to lie flat. You want the fabric smooth but not tight enough to warp the frame. It might take a couple of tries, but keep at it. When you are done your fabric should be pretty wrinkle free. You can always touch it up with an iron.

Now you are ready to trim the excess fabric. Take your time and be careful not to cut the spline. I pulled the fabric taught and worked down the seam with an Exacto knife. Trim hanging threads with a pair of scissors.