A simple Jig saw Jig

To cut a straight line with a jigsaw is remarkably easy. All you need is a simple jig made from a straight batten of wood, and a piece of 1/4" plywood.

First screw the plywood to the batten and counter sink the screws.

Clamp the batten down and saw along the batten as shown.

Place the plywood exactly along the line you wish to cut, and place a sceond scrap piece of the same plywood beside it to support the Jigsaw. Run the Jigsaw along the batten and it will cut your line exactly.

There are two caveats.

1) Always use it in the same direction, the distance from the side of the base plate of the jigsaw to the blade may be different on the left and right of the jigsaw.

2) If you want to cut a bevel, you need to make two jigs for each angle, one sloping away from the batten, the other sloping towards the batten.