New Improved Mark 4 Helmet PDF

This is 2013 project, many viewer told me the download link no longer works, so this is an improved Mark 4 PDF, for details please read this old post first

- Cardboard
- Hot glue
- Masking tape
- Red, Gold spray Paint
- Acrylic paint

Free PDF:

Buy ready to print PDF from etsy:

how to make retractable back piece?

part 1

Part 1:
Part 2:
Part 3: