How would you draft craft foam armor patterns?
The same way you draft anything – templates, mock-ups and tweaking before cutting your final piece!
My recommendation is to wrap your chosen limb in saran wrap, cover yourself in tape overtop, and then draw out the shape of your armor overtop.
I recently did a Google Hangouts session with @sheepskin to help them with their Sparrow-skin Genji armor. We tag teamed it online –– first they drew out the rough shape of their ideal pattern/scale/design on their arm, and then they drew out a digital version with scale. That’s this:
Then I made a clean version digitally:
Notice some shape changes? We made revisions as we went.
They printed it out on their end to test it in real life, resulting in this:
That was after 4-5 minor tweaks.
Because I have a digital file, I can easily drag apart the layers so I can have individual pattern pieces. Here they are screencapped from my WIP lasercutting file:
The next step will be a cut foam prototype. If we’re not happy with it, we’ll go back to the drawing board!