After all there are only four things you can do to metal.
How to shape sheet metal by hand.
These can range from anvils to blocks of various woods and even plastic materials.
A roller machine clamps the metal between a hard metal form usually a humped shape and a heavy duty roller.
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How can you go about shaping metal with hand tools alone.
In this video i show how to make a simple metal brake with a couple.
Create curves in the steel by using a hammer and form or a mechanical roller machine if you have one.
Shaped plastic mallets used with shot bag backing is a particularly effective hand forming combination.
Cut it bend it shrink it and stretch it.
Every autobody practitioner has some favorite backing surface for hammering metal.
With a combination of these manipulations you can create anything from flat sheet and you.