Piston crank Mechanism designed using solidworks 2022 the assembly is available in blender & fbx
( if the file doesn't open by double mouse click try to open the application and from the application open the assembly or the wanted files )
STL (Stereolithography, filesize: 5.15 MB), SLDPRT (SolidWorks, filesize: 5.15 MB), FBX (Autodesk FBX, filesize: 5.15 MB), BLEND (Blender, filesize: 5.15 MB)