Bending sheet metal can be done in a few different ways depending on the thickness and type of metal you're working with, as well as the desired shape and angle of the bend. Here are some general steps to follow:

  1. Determine the type and thickness of the sheet metal you're working with. Thicker metals will require more force and may need to be bent using specialized equipment like a press brake, while thinner metals can be bent by hand or with a simple tool like a bending brake.

  2. Mark the location where you want to make the bend using a straight edge and a marker or scribe.

  3. If you're using a bending brake or similar tool, adjust the clamps or stops to the desired angle of the bend. Make sure the metal is securely clamped in place.

  4. Use a hammer or mallet to gently tap the metal along the marked line, creating a slight crease or indentation that will help guide the bend.

  5. If using a bending brake, use the handle to apply pressure and bend the metal to the desired angle. If bending by hand, use pliers, vise grips, or other tools to slowly and carefully bend the metal to the desired angle.

  6. Check the angle of the bend with a protractor or other measuring tool, and make any necessary adjustments.

  7. Repeat the process for any additional bends or angles as needed.

Note: Always wear appropriate protective gear when working with sheet metal, including gloves and eye protection. Additionally, be aware that some metals may produce sharp edges or burrs when bent, so use caution and file down any rough spots as needed.