Re: ULTRON for Pepakura ** 5/9 FOAM HELMET TEMPLATE ADDED **
Finally got around to fixing the left forearm. Here's a more detailed process on how I did the raised details in foamcore. It's a little tedious of a process but I like the results.
First thing, I glued down the paper template to the foamcore using a glue stick. You don't want this to be a permanent bond, so don't slather it on. You'll be cutting out the raised detail from foamcore, and cutting out the spacers just out of the cardstock.
It might be easier to cut out the spacers before gluing, but if you do that then make sure you number everything and mark the direction they all need to face.
Once you have the spacers and raised pieces cut out, you want to arrange them on the foamcore that you'll glue them to. Here I aligned them against the table so you can see them more clearly.
I used this previously cut out part as a jig to make sure everything is lined up straight, and to estimate how much space I'll need to cut. I glue down the raised detail with superglue and slide off the spacers as everything is put down.
Once the raised details are all glued down, I cut about 1/2" extra space on the sides, 2" on the bottom, and let my previous cuts dictate the extra space at the top.
Once I have everything fit, I cut off the extra space at the bottom so there is a nice fit. At this point I peel off the cardstock template from the raise detail foamcore. Then it's just a matter of gluing the foamcore board piece to the EVA foam.
Rinse and repeat for the other side, and you have nice flat hard edges where they need to be, and flexible foam for the rest.