Requirements

req_001: Create a three-hole mechanical connecting link with three hole centers on one straight line, adjacent center-to-center distances of 60 mm and 80 mm, hole diameters of 12 mm, a part thickness of 10 mm, and smooth continuous outer transitions around the three 32 mm outer circular regions.
- Assumption: Interpret the link as a single planar body extruded to the stated thickness.
- Assumption: Treat the three hole centers as collinear within one common plane.