I built this jig for cutting 3D patterns with the scroll saw. I had been using clamps but they were a pain to use. If you would like to build your own jig I have included the material list and construction plans below.
The jig is very easy to build. You can buy the parts at Home Depot for a few dollars. The assembly only takes a few minutes and if you plan to cut 3D patterns I think you will be glad you have this jig.
You can resize the clamp to meet your 3d cutting needs.