More on copper working. These are the basics and will get you going.
Here are the tools I will be using.
A regular claw hammer, a metal smithing hammer, a dapping stake, vise, wood block and a jewelers saw.
The first step is to anneal the piece of metal you are working with. Annealing is a process of heating the metal to rearrange the molecules making it softer and easier to work with.
I use an industrial heat gun for small pieces and a torch for larger pieces.
Heat it to a dull cherry red and let it cool down slowly in the air. Queching doesn\'t really do anything for copper but with other metals, it can harden it again.
This picture shows two pieces of copper from the same sheet. The one on the left has been annealed, hence the darker color. That is firescale and can be removed later.
I am using a dapping stake as a form so I have cranked it down in a vise.
First stage of forming: Lightly tap the metal around the form while rotating the piece. Try to use a hammer with a smooth face. Any flaws in the face of the hammer will get pounded into the metal. I am using a metal smithing hammer with a polished face.
Now, anneal the metal again. Forming compresses the molecules and makes it hard again.
Here, I am using a block of wood and a regular claw hammer to push the stake into the metal. This process is called chasing.
After the dome is formed, I carefully cut the part from the sheet using a jewelers saw. The edge of the pieces can be filed smooth.
If you have any questions, please post, and be careful.