It’s less than a kg, I’ll try to remember to weigh it for you later today
I’ve always preferred to make as much out of foam as possible for a few reasons:
-you will have a LOT more flexibility with foam armour than with printed
-foam armour bends instead of cracking, so if you do end up damaging it foam can be a lot easier to repair
-foam armour is lighter
-it allows you to make modifications and adjustments even after you’ve completed your armour. For example, I completed my shin armour and noticed it was the right diameter, but too short. Because it is foam I had no trouble just adding in an extra 5cm. If I had printed it, I would have had to remake it entirely.
Not to say that 3D printing doesn’t have its advantages. It will make very accurate parts. They can just be a bit fragile in my opinion. If I drop my foam gauntlets off the table and I’m to the ground that’s no trouble at all, but if my bump my helmet on a wall the paint can chip. I would say practice with the foam, make the pets that you for sure want to be foam, and then see what else you can make. If you like the way your 3D printer makes the pieces better, go with that. But if you’re able to make foam, I think you will enjoy wearing it a bit better.