I wasted a weekend on a "print-ready" helmet that was one solid 14-hour print with 0.8mm walls and the visor facing the bed.

That's the usual pattern with free armor STLs:

• Printed as one piece so it warps off the plate at hour 11

• Walls too thin for PETG, too thick for PLA (and nobody tells you which)

• Overhangs on the chest that your 0.4mm nozzle cannot save

• No split along the natural seam, so you sand for three nights

Print-ready, for armor, means something boring: pre-oriented, split where a human actually wears it, 2mm walls, and a note that says "0.2mm, 3 walls, no supports on this piece."

If your pauldron needs a tree support forest, it wasn't ready.

I started packing files that way because I was tired of reprinting shoulder caps. If you print props and cosplay on a Bambu or Ender, that's the bar. Don't buy a pack that doesn't tell you the nozzle and the split.