DIY Olympic Concrete Weight Plates - In-depth guide in comments

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Reusable DIY Olympic Barbell Cement Weight Molds

Homemade concrete plates for the home gym. : r/homegym

Triumph MFG | 25-45 LB Concrete Weight Plate Molds, Mold for DIY Olympic Barbell Weights

Stix and Stone, Concrete Weight Plate Molds

DIY Concrete Weights, DPLATE Weight Molds, 10 Pound Concrete

GEN2 3-MOLD KIT: 45, 25, AND 10/5 LBS

DIY Concrete Weights, DPLATE Weight Molds, 45 Pound Concrete

Buy BETONEX 5 pcs DIY Concrete Weight Plates Mold Plastic ABS 2mm

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