Suppliers for Upholstery Sewing machinges Parts and Supplies

1. Ultimate Sew & Vac¹ has a large online listing of parts for both household and commercial sewing machines

Sewing Machine Repair

1. wefixit · Sewing Machine "Shade Tree" Mechanics. this is am email list for people who like to repair sewing machines. They exchange tips & tricks, advice, etc.
2. HowStuffWorks.com¹ has a page that shows How Sewing Machines Work.¹

Thanks

¹Thanks to Ted Howard of Howards Upholstery for supplying this info.