I'm pretty sure my marines are going to be bigger than those.
Today I added a bit of a skirt around the bottom edge of the mold for the shoulder forms:
This extra material will make it possible to build up thickness when laying up fiberglass all the way to the edge of the shoulder plate. Then I can just trim off the excess.
I also reinforced the ends of two of the four thigh forms:
The thighs are the last pepakura parts that still need to be converted into forming bucks. Here's a shot showing the inside to give you an idea of how it's done:
Just like I did with the other parts, once the thighs were split in half, the next step was to build an MDF border around the bottom edge, glue cardstock over the open ends, then lay up more fiberglass inside to bond it all together. The thinnest parts are the end caps where I've built up at least 2 layers of 1.5oz fiberglass mat.
This should be adequate to resist the pressures from vacforming.
Once I get the other thigh parts put together, I'll have all of the forms I'll need for the hard parts. I'll still have to finish the sculpt for the waist and other rubber joint parts.
Stay tuned...