Spur-gear axial offset: measure finite face overlap beyond the 2D layout
An unchanged authored nominal in-plane layout does not establish finite axial overlap. Measure both face intervals before choosing spacers, shoulders or retention positions.
An unchanged authored nominal in-plane layout does not establish finite axial overlap. Measure both face intervals before choosing spacers, shoulders or retention positions.
With the same 30 mm horizontal input, the 10° ramp raised the shoe 5.29 mm and left 0.23 mm at the limiting edge; the 25° ramp raised it 13.99 mm and left 1.55 mm.
At ±20°, the 80 mm arm produced about 27.36 mm of tangent travel and 4.82 mm of radial drift, while the 50 mm arm produced 17.10 mm and 3.02 mm.
The same 10 mm across-flats head cleared a 10.2 mm rigid mouth when aligned, intersected both jaws at 30°, and regained about 0.13 mm clearance in an 11.8 mm mouth.
The center stayed fixed, but neck-rim separation fell from about 6.97 mm to 2.28 mm before the finite solids intersected at 35 degrees.
At a 50 mm center position, the carriage center remained inside the rail while the body overhung its end by 10 mm and retained 30 mm of overlap.
Three valid static closures put the same coupler midpoint near the reference at 90 degrees but on opposite sides at 60 and 120 degrees.
At the same 45-degree cam pose and follower height, a 20 mm face missed the support edge while a 40 mm face contained it with positive margin.
At one 35-degree bend, three compatible static phases changed the controlling fork pair and produced bounded clearances from about 2.54 to 2.88 mm.
At 6 degrees, the cable centerline remained about 1.68 mm clear while the full 6 mm cable envelope had a certified interior intersection with the flange.