CAD Craft

A resource to CAD Craft specialists, and a showcase of my work — in both material and virtual worlds

Sewing machine with single internal feed bobbin

This close up shows the type of thread spool arrangement I spoke of in the previous post.  Of course, a mounting arrangement must be configured to hold the spool steady, allowing the thread to pull off, instead of the usual where the spool spins as the thread pulls off. However, you can see this arrangement minimizes potential snags, etc.  It also allows for the entire needle cartridge to be lifted up through the top — and threaded at eye level(!) — before being reinserted, and the bobbin/spool being replaced.

Sewing machine assy with single internal feed bobbin

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