The first helmet I printed for a con looked perfect in the slicer and split on the table. The file was a single thin shell with no split planes. It was built for resin. FDM hates that.

If you print armor or props on a Bambu or Ender, three things matter more than the render:

1. Wall thickness that survives sanding. Under 2.4mm and the filler eats the part.

2. Split files that fit a 256mm bed without you guessing the cut.

3. Orientation notes so you don't bury the visible face in supports.

That's the bar for every file in the Cosplay Prop STL Pack. One payment, you keep the downloads.

If the file is fine and the printer is the problem, that's a different product: a 1-hour live session that expires 7 days after purchase. Not lifetime support.

Drop your printer model if you want a starter profile for helmets.