I use my computer to make patterns for every part in the kit before I build it. I have learned the adjustments that my system needs to make a perfect copy at 100% in the X axis, and the Y. I will copy all of the print wood, or take the laser cut parts and put them on a contrasting background to copy. Sometimes, the kit makers will change a part from the plan, so that you can't use the plan to make a working copy of the model. If you don't copy the part, it makes it impossible to repair or rebuild the model at a later date. I like eternal models, not throwaway ones. If wire parts are used, I copy them too. I usually copy or draw everything in the kit. After all, It's not like I've never had to repair a model... [:-]

Dave