Thunderstone Dragonspire Insert

thingiverse

This is a remix of szkryb's Marvel box organizer. I love the solution. I had to add 9mm to the length to fix Thunderstone's box snuggly. I also hexed the walls and base to save about 35% on weight. Much lighter now. I used a brim only to prevent curling at the corners. It might not be needed with the holes in the base.