If you are using a hand jigsaw it is easier to cut across fibers. A jigsaw is a perfect tool for cutting into plywood straight curved and even at an angle if the material is thick enough.
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When making a cut with a jigsaw pay special attention to the blade.
How to cut a circle in plywood with a jigsaw. How to cut plywood into a circle. There will be a tendency for the lower part of a blade to pull to the outside of the circle giving a not square edge. Make sure your marks remain after youve drill the hole.
Cut it so that the jigsaw tightly fits in. How to cut a perfect circle with a jigsaw. When cutting a plywood sheet with an electric jigsaw try to do the main cutting lines along the veneer fibers.
Now make hole through the both sides of the jigsaw base so it could fit a threaded rod directly perpendicular to it base. Then make a second large crosshair mark on your jig. Make a large crosshair mark on the top left corner and drill out the center with the thin drill bit.
Put the jigsaw on in and outline it and cut the base. Some blades are designed to give smooth cuts without saw marks and others are designed for circles with a tighter diameter. This will not save you from chipping but a jigsaw will less likely get pinched or miss the marking line.
Thus the edges will be neat. Remove the soleplate at the bottom of the jigsaw. Now set your workpiece aside and pick up your thin plywood.
While no one is denying the usefulness of a jigsaw in these situations there is a lot of debate as to how to cut plywood with a jigsaw.
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