ORIGINAL: Mr Cox
There is no need to cut and destroy any drawings, you can transfer patterns via a soft pencil on see-through paper or just punch trough the drawing onto the wood in critical corners using a needle and then connect the dots.
It isn't a cut and destroy, by having an extra set of plans made at your local Kinko's/Fedex you can cut one set and build over it so the originals are saved. A lot of us that build from plans trade with each other so having the originals is always a good idea. Kinko's can also put the plans on disc and we can trade back and forth on the computer. Also gives you a perfect sized and shaped part without a lot of work. With a copy you can also rub down the part over the wood with acetone and it transfers the ink onto the wood. Ziroli plans cost enough to make getting a copy a good idea.