In the past I worked at a shop that specializes in historic windows and doors. I decided to go out on my own and start my own shop. I'm about 4 months into it and the only thing I've really been having a hard time with is getting consistent results shaping thin TDL's (1/4 between glass). Right now I rip my rough stock wide enough to shape each side and rip it in half to shape the other sides (getting two bars out of one piece). This is where I run into problems. I made a jig with a cope cut along the edge to accept my work piece and a backer piece to prevent it from coming out the back of the jig. I power feed the jig and work piece through the shaper and always get dicey results. This includes considerable sniping, and variation in width along the length of the piece. I can't use an outboard fence, because my work piece wont stay in the jig, unless there is a way to fix it to the jig...
Does anyone have any suggestions? I'm relatively new to this so I'm try to get my mind wrapped around all that goes into it. So far all of my jobs have involved 3/4 bars, this is my first whack at 1/4.
If you need pics I can upload them.
Thanks ahead of time
Jack