Whole object takes two extrusions… 1st Extrusion- take full thickness = 9/16”
Yoke: I chose 2D for the sketch; you could make this directly in 3D. Note I did not bother with the hole; do as point center in Inventor.
After extruding the sketch to full height, sketch on top plane and locate the point center. Finish sketch and use 3D Model Hole command to add a ½-13 UNC threaded hole. Be sure to select the thread option (circled in green).
Threaded Holes: To cover the vernacular: ½-13UNC-2A Translates to: : Diameter – Threads Per Inch – Class of Fit =½” Dia bolt –with- 13 threads per inch in the Unified National Course family –with- internal fit (i.e. hole is tapped)
Spreader Nut Two steps in Inventor
Revolve the sketch. When completed, sketch on the top plane and locate center with a point. Add a 3D Model Hole feature using same ½-13UNC-2A specs. Done!
Screw Sketch the full profile and then cut in half.
3D Solids Menu: Look for “Thread” under the Modify tab. Select the face to cut and total length of 3.125.
Need a work plane… Create a sketch on top of the object; need a line from center to quadrant. Create a work plane at the end point of the new line.
Sketch on work plane. Share geometry to get center axis. Locate a 11/32” dia circle and extrude through all.
Done! *Well almost… Got fancy and added a .0625 chamfer on the bottom edge to help “start” the threads.
Pin (Spring Pin) *Catch specs given on bottom of page 3.
Sphere’s Step 1: Sketch a 9/16” circle and bisect it with a line down the middle. Trim off half. “Knobs are 9/16” diameter spheres, with ¼” deep holes for press fit.” -Bottom left of page #3.
Share the sketch for Revolution 1 and create a work plane at the endpoint of the center line. Next, create a sketch on the new work plane.
Project Geometry of the center line onto the work plane and use that point as the center of the 5/16” hole, ¼” deep.
Handle: 5/16”x4” long. Sketch a 5/16” circle and extrude to 4” length.