The answer to that really depends on what shape you started with and which specific unfold tool you used.

the problem is that the other guy is not a good user of corel so it's really hard to edit the file. He can't deal with a dxf or dwg file format. In previous projects it was easy to copy paste the model from PDF into corel! Now the model have many curves and it's not working properly!

What size paper does your printer handle? Are you sure the model will fit within the printer's margins? Are you getting the model window to the correct aspect ratio? Upgrading to Pro could be a good option. As I described, the process for being able to print things like this to scale is much easier. If you have to do this more than once in a great while and you value your time, the cost of the Pro license isn't really a big deal. You could figure out how much time you've got invested in trying to get this one thing printed and add in the time for someone else to try to help you.

You can make it easier to see how to rotate a shape by drawing a flat plane to work on, make it a group so you don't stick to it. [image: EwxG_RotateFlat.gif]

Use the Move tool to move just what needs to be changed.