Free Energy from ambient heat by the Magnetocaloric effect

[Charlie Brown ARN]

The moving bar may be in frictionless reliable contact as a rolimite band and two roller in the rectangular channel. Rotation of the rollers as they translate back and forth makes the situation a little nore complex but mechanically improved. Rollimite is a band wrapped around two rollers roughly shown with keboard characters with the rollers at their rightmost limit:? ?__S the rollers are wrapped with overlap in the curves of the S.

A simpler method is to have a springy cantilever beam tied at one end like a diving board where the tip arcs over the surface curve of the yoke staying close but never rubbing  moving vertically instead of horizontally here:  ---)

Edit consolidated the second idea with the first one a few minutes later.

Aloha, Charlie