Over a year ago, when it was hard to get weight plates, I 3D printed molds and made rebar-reinforce, cement weight plates with urethane coating and a steel center ring. : r/3Dprinting
Gorilla Weight Mold Kit – Gorilla Weight Molds
DIY Olympic Barbell Cement Weight Molds For Sale - LCMOLDS.COM
DIY Olympic Barbell Cement Weight Molds For Sale - LCMOLDS.COM
weight plate mold" 3D Models to Print - yeggi
Cement Gym Weight Plate Molds 3D Printed Barbell or Dumbbell Pounds DIY Concrete LB Pound KG Kilogram - Etsy