Calf exercise machine fabricated using pillow block bearings

[Tmate]

This calf machine was built using 3/4" ID self aligning pillow blocks. There are two assemblies that bolt to a couple of wall studs -- one at the top for the lifting arms, and one at the bottom for the weights. The cable attaches to the bottom section halfway in from the weights to the pivot. This doubles the effective weight in the exercise.