You may need to make a part with bends such that a certain dimension is met after the bend occurs. You can do this easily using the technique shown below.
For example, suppose we design two parallel bends on a rectangular metal sheet to create a U shape and we want the outside distance across the U to be 1". The example below shows how to do this with each step corresponding to the respective numbered drawing.
- Place the bend lines 1" apart, knowing full well that it’s not quite that simple.
- Choose Job | Model Bends and move the computed bend model tangent to the leftmost bend line.
- Create the small "adjustment" rectangle to measure the error by placing it between the rightmost bend line and the rightmost edge of the U shaped bend model. Note that the horizontal size of the adjustment rectangle represents how much the outside of the U shape exceeds the desired 1".
- Remove the bend model and flip the adjustment rectangle to the other side of the bend line.
- Move the right bend line to the other side of the adjustment rectangle. Then rerun the Job | Model Bends command and check the numeric bar to verify that the horizontal size of the bend model is exactly 1". (Notice that one leg of the U is now longer than the other. This is easily corrected by drawing a horizontal line from the other leg and applying the intersect command. Also note that the same technique, with minor variation, can be used to target a specific length of each leg.)