Unwrapping via a surface is really the way to go for this specific application. It is much like a piece of paper on the outside of the tube. Surfaces can also be left with the model/layered off and layered on the drawing. There would likely be some t... View more

Here is how to substitute the feature name for the ID. This assumes you have user defined feature name where required to support the relations definition.   If you write a relation in the feature’s parent model (part or assembly) or in another featur... View more

It always would be better to attach the worksheet itself rather than just a picture.   The error you get is because of wrong usage of the function "matrix". The third argument of "matrix" must be a function in two arguments. If your intention was to ... View more