A question about Stefan's plans...

Hi,

I’m about to be (attempting) to build a proton pack and I want to use Stefan’s plans. I was just wondering, are his plans drawn to scale? Like, if I need to make the pack slightly larger or slightly bigger, can I just print his plans to the proper size and take measurements from the print outs? Or will I have to do stuff like that the old fashioned way using fractions and (ugh!) math? =P

From what I know the drawings in the plans are in fact drawn to the scale of his measurements, of course you’d have to make them be able to print them out at 1:1 or whatever, but yeah that’s what they should look like.