Cam Gear for Kenmore Sewing Machines - Compatible with 39453 Variants, 3D Printed Engineering Resin Tougher Than Original Plastic

Cam gear part number 39453B or 39453M or 39453P. This is the zig-zag cam gear for Kenmore sewing machines and possibly some others. Note the reversed gear direction as compared to the widely available metal gear.  Known model numbers for compatible Kenmore machines: 158.12271, 158.12272, 158.12370, 158.12470, 158.12471, 158.12472. This is a 3D resin printed part utilizing a special engineering resin that has an incredible toughness compared to the plastic that originally came on these machines. The shaft has been reamed to the specific diameter to fit your machine. Please see my videos on the development of these parts. Here is a link to the playlist 3D Printing Related
https://www.youtube.com/playlist?list=PLw0p8hmocBYvjworQOXdBqt5KvbilElWP