I made a simple jig from scrap I'll try to describe it. I made a wedge 1 to 8 slope from maple,sawed it in half lengthwise,and glued them to a piece of scrap 12 or so inches long,separated by the width of the cedar strips. I glued some formica on the top of the wedges,to make a smooth ,non grabby surface.I clamp the cedar in the jig,and use a sharp 1 1/2" chisel,layed flat on the wedges,to pare the the scarf.For plywood,I made a scarfing jig 1 to 12 ,using wedges as above,and made a car(no better word occurs to me) that held my router,and just slid the car around on the wedges.I had to make 40 joints for a boat I built,some 48",and every scarf was invisible.It took time to make,but it saved even more in the long run .I made the car from angle iron and maple scrap.I have lots of maple ,as I pick up maple furniture from curbside-it is well seasoned ,free and the best thing for jigs and shop projects Hope I helped I found using a block plane to make a scarf fairly simple, the only
> challenge was keeping relatively even edges and then trying to glue the
> pieces straight. I understand that, due to difficulties in lining up the 2
> parts, CLC is now selling it's kits with "microedge scarf jts"
> (or something like that) that provide a small stepped edge that is easier
> to line up. I was considering using a router to form a single step
> ~3/4"-1" long (similar to a dado cut?), removing 1/2 the
> material from each side and then mating them together with epoxy.

> XXXXXXXXXXXXXOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXOOOOOOOOOOOOOOOOO

> - I thought this would be a simple joint to make and line up, plus have
> some of the joint overlap benefits of a scaft joint.

> (Concerns - ie. would this promote delamination?)

> Mark