really? wonder if its the type of paper? I use a matt (not glossy photopaper) card - so its a bit heaver then regular printing paper so it holds its shape better. also with this kind of paper folding its not like origami where you need to score every line hard. in fact unless you are making a robot/ or dragon teeth softer curves look better hope that helps in any way
I tried using card stock and drawing paper, and had the same problem with both, and wasn't scoring too much(I think). Could it be the printer? It was my school's printer, and its ink is exceptionally slick and shiny. Glue did stick to the ink either.
yeah sounds like it must be the ink that's a shame possibly a lazer printer rather than an inkjet? I know the ink is quite different in those types of printers.
hope you get the chance to try some more in the future with better luck. also make sure you use a nice tacky glue - some people try with glue sticks but i find that a waste of time. go for pva, or some kind of scrap book glue that drys clear