Ricky Joe Bishop has just come out with a jig press he calls Lil Jiggy. Jig, tools and enough material to make 20 calls is only $56, I think. He makes the jig on a 3D printer. It's pretty neat. I have a feather ridge that works very well, but is also expensive, but is very precise, and worth the money. There are some plans on the internet on how to make a jig for hardly nothing. You are doing the right thing, find out if you enjoy making them before you spend a lot of many.