/diy/ - Do It Yourself

I'm trying to build a dummy gun, don't want to pay near 100 bucks. Its for Training class. I got the wood cut a bock of appropriate size. Now I want to cut out the shape of the gun. Glock 17 but I want it to be as accurate as possible, is there a way to print exact size on paper? There are accurate templates of the Glock 17 online, they're never 1:1 exact size, I could enlarge the template but is there a way I can measure it in the computer or in program that will preview how big it will print on paper before I print it, so I can get the exact dimensions I want and cut the shape in wood block?