Thank you for the info Brother none of the craft stores had any that was 1MM, closes I found was .5mm. I went to 4 different chain stores here in the US I went to Office Depot nothing to be found. Walmart nothing. I checked the Net for it, but most places didn't have it or wanted me to buy a ton of it and that wasn't gonna happen, I'd just as soon roll the kit into a log and Heat the house with it in the fireplace lol For exactly 1mm thick the best I found was Slip Sheets Used for the Folk lift Industry. I work in that Industry and had customers who used to use those, but no longer do. A slip sheet is thick dense cardboard non corrugated its used as apposed to a pallet. a few places I used to service moved to the plastic ones as they were reusable, Slip sheets are exactly 1mm thick, but Id have to buy 5000 min. The stuff I found and am using is 1.05MM thick so no big deal as its used for the frame and bulkheads Heavy structural stuff that I have seen so far in the kit.
Usually I'm pretty demanding about using exactly what I'm supposed to, but in this case I was no longer willing to be stubborn since its not that far off. I do have exact .5 mm and I could double that up but I'm not into making more work for myself when I have something close enough. My wife isn't happy about the build as I have amassed a rather large supply of paper in all thicknesses rolls of non corrugated cardboard card stock chip board and anything else I could find in my travels to build this kit with. All of it donated by my customers to see if it was thick enough. it would have been better to just take my thickness gauge to work with me, but for some reason my brain wasn't working so as I saw what might work I asked for some of it. I have enough to build 10 ships no doubt about it. lol Its all good what I don't use for the ship I can use as fire starter for the fireplace. The board I found wasn't cheap was like $18 for 20 pieces 8.5X11" But I got tired of searching for the right stuff so I gave in and bought it. BTW do you have any links to the laser cut stuff