Wanted to add a little bit weight to knife for more rotational energy and reduce printed parts to bare minimum. It is pretty rigid design.

Printed in PETG without supports.

Required parts:

• 2 x ball bearing 3x7x3  in my case 683 ZZ craft 
• 2 x  DIN 912 M3 x 8
• 2 x DIN 934 M3
• Optional for added weight:
  • 2 x DIN 912 M6 x 8-25 (length can be 8 - 25 mm for weight adjustment)
  • 2 x DIN 934 M6