Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I have usually bought the casting trees myself in the past. The problems I see with a jig is that the individual pieces aren't completely uniform,  thus requiring individual shaping to fit a jig. They are a pita to do & I usually ruin a few from each batch. I usually do most of one type part at a time( & I hate doing them).ai think tubal cain (Mr. Pete) did a video on machining these that I adhered to pretty well.