I've been doing some unfolding with Pepakura Designer and have recently discovered the 'mirror point' or 'pick symmetrical edge' function (I think the name is different depending on the version of Pepakura Designer). I have found that sometimes the function works and other times does nothing. When working in the 3D window, the function allows for an edge to be opened automatically if its corresponding symmetrical edge is opened manually. The mirror point function allows for saved time and the easier achievement of symmetrical unfolds since you're able to open edges on both sides by only working on one side.
When it hasn't worked I've tried a number of things to get it to, all to no avail. I've used the mirror modifier in Blender to ensure that I have a symmetric model exported to OBJ but when I import the OBJ with the symmetric model into Pepakura Designer the mirror point function doesn't work. I've searched goggle and the 405th but only found one passing reference to it that only mentioned that it was finicky.
Does anyone know the special incantation that must invoked to get the mirror point (or pick symmetrical edge) function to work?
