1 minute ago, Vae said:I use 300 GSM white card and the boxes are pretty **** solid - Certainly give good protection when within a larger box. The gearboxes are also nice to keep all the stuff that the ship needs in one place. As Grumbleduke says make sure you print Actual Size otherwise it comes up slightly too small and the ships don't quite fit. Very frustrating when you only find out after having built it!
I print it, cut out the shapes and then score the back (I use a sharp small pair of scissors but craft knife would be best) of the shapes along the lines where I will be folding as it makes it fold a lot nicer. Then fold the box together and apply white PVA glue to the tabs which need it with a paintbrush as I stick it together.
thank you!