A quality jigsaw and the correct metal cutting blade will make short work of sheet metal cuts.
Cutting sheet metal straight line.
To cut straight lines use an electric saw.
Step 5 optional if your project requires cutting a hole in the center of sheet metal draw it on the metal as you would any other cut line.
Shaving is a secondary process that can be used to improve edges of cuts that have already been made.
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Clamp or hold a straightedge or square along the cutting marks and score a line with the tip of a sharp utility knife blade.
It cuts metal almost as easily as a scissors cuts paper.
Start by taping both sides of the sheet metal directly over the line you want to cut and clamp the metal to a work station so it doesn t move.
As you cut one side of the sheet metal will ride up and over the.
Even in properly cut metal the fracture zone will be angled and rough.
If you need a straight cut clamp a straight edge to the sheet to act as a guide for the jigsaw footplate.
Edge surfaces of cut sheet metal are not typically smooth and straight.
And the long blades make it easy to cut straight and leave a smooth edge.
In sheet metal cutting the lower the clearance value the higher the edge s quality.
And you can use the same technique anytime you need a straight cut on aluminum or other light gauge sheet metal even steel.
Even so your cut will probably be a little ragged.
This same idea i decided to take to sheet metal when using the scissor shears.
An well known trick when cutting with your plasma cutter is to clamp a metal straight edge to the metal so the arc is directly over your cut line.
Then grip the saw with both hands and push the blade through the metal to cut it.
For thin sheets of metal you can use tin snips to cut through it.
