Then use your bend allowance to draw your second bend line the intervening distance between your bend lines bend radius.
How to roll sheet metal.
The string should be.
How to roll a metal cone step 1.
Draw a line onto your sheet metal the same length as you want the slanted edge of your cone to be.
The sheet metal rolling process consists of passing metal stock through one or more pairs of rolls to reduce the thickness and to make the thickness uniform.
How to roll a round cylinder using a hydraulic roller.
Place the tip of your marker.
Now that you know your bend allowance take your protractor and draw a clear line with your marker across the point at which you will bend your sheet metal.
You ll need to be careful with your blows here as it s easy to ding the sheet metal and create divots and gouges.
Mark your bend lines.