建立方向盘项目初始版本

models/turn_signal_cam_v2/geometry_check.txt

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+PRELIMINARY concept only, do not print.
+Shaft: 12x100; middle keyway only, shaft end details omitted.
+Body axial overall 20; cam corner radius 21.7706; total swept diameter 43.5412
+Clamping envelope including screw/nut and ears 33.4718
+key: 4 x 4 x 12 hypothetical; local keyway depth shaft 2mm and hub 2.3mm, width 4.2mm.
+clamp gap 0.4mm, bore 12.2mm nominal; M3 clearance dia 3.4; cylindrical 6.6mm relief (nut captured only visually, nut rotation restraint not modeled).
+Calculated positive-volume intersections (mm3):
+upper-lower 0.00000000
+upper-shaft 0.00000000
+lower-shaft 0.00000000
+key-shaft 0.00000000
+key-upper 0.00000000
+key-lower 0.00000000
+hardware0-upper 0.00000000
+hardware0-lower 0.00000000
+hardware0-shaft 0.00000000
+hardware1-upper 0.00000000
+hardware1-lower 0.00000000
+hardware1-shaft 0.00000000
+hardware2-upper 0.00000000
+hardware2-lower 0.00000000
+hardware2-shaft 0.00000000
+hardware3-upper 0.00000000
+hardware3-lower 0.00000000
+hardware3-shaft 0.00000000
+Fastener hex socket and actual switch/cam clearance unmodeled; proposed material, deflection, load and tooling clearance not validated.
+100mm shaft position is schematic, module, both bearings, motor connection and wheel are unmodeled; fit cannot be inferred.