For controlling a sewing machine a foot pedal is used. As I want to control the foot pedal using stepper motor I developed a 3D printed vertical mechanism for pressing the foot pedal down based on the finger bending. I used the following components for the mechanism.
I designed and 3D printed the following parts. The .stl design files are attached in the attachment section. The left top is the stepper mount, the left bottom is the armature and the right big part is the base.
The following image shows the assembly of the stepper mount with the base using 4 M3x15 screws.
The assembly of the armature with the threaded rod and screw is shown in the following images.
The following photo shows installing the linear rail that helps to smoothly guide the armature vertically up and down.
The complete assembled pressing mechanism is shown in the following images.
Watch the working video below:
Attachment (3D stl files):
Accessible Sewing Machine Armature.stl
Accessible Sewing Machine Base.stl
Accessible Sewing Machine Bracket.stl
