Model Involute (ZI) worm in solid works
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This document provides instructions for modeling an involute ZI worm in 3D CAD using SolidWorks. The steps include drawing the worm's base diameters and tangent, adding a sketch plane through the tangent, drawing a line at the lead angle on the base diameter, drawing a helix with the worm's lead pitch, and using a surface sweep to create the involute helix flank surface of the worm. It notes that this creates a theoretical surface and an actual produced worm would have a root protuberance from the manufacturing tool not represented in this basic model.
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Model Involute (ZI) worm in solid works
- 1. How to model an involute ZI worm using 3d CAD. Example with SolidWorks. Spiralbevel.com
- 2. 1. Draw the base diameter, root diameter, outside diameter and tangent to the base diameter
- 3. 2. Add a new sketch plane through the tangent to the base diameter
- 4. 3. On the new plane draw a line at lead angle on the base diameter. You can calculate the lead angle on the base diameter from: Angle = atn(lead/Pi/base diameter)
- 5. 4. Draw a helix with pitch equal to the worm lead
- 6. 5. Use Surface – Sweep to make involute helix – the flank of the involute ZI worm
- 7. Note, that this is a theoretical surface. The real production worm will have a protuberance on the root generated by the manufacturing tool. Contact spiralbevel.com to get software for accurate 3d CAD modeling of the realistic production worm. Spiral Bevel Corporation. 2017. Spiralbevel.com