Sewing Machine Husqvarna Viking 940 handwheel

thingiverse

This is a custom replacement hand crank wheel designed specifically for Husqvarna Viking sewing machines from the 80's. The original design was flawed in that it served as both the hand crank and timing mechanism for stepper motors, leading to mechanical failures due to brittle plastic components. Despite its age, this machine remains an incredible tool, and I needed to complete a pressing sewing project swiftly. Rather than investing in a cheap new machine or waiting several days for a $50 part to arrive, I opted to reverse engineer and 3D print the replacement hand crank wheel. The Solidworks design features additional textured elements to facilitate effortless cranking. For those seeking a high-quality, injection-molded alternative, an OEM knob can be purchased through the link provided: https://www.sewingpartsonline.com/handwheel-viking-4122222-03.aspx