Once you have a working Helical Gear Generator (whether in Excel/Matlab exporting DXF, or inside Blender), you can do cool things:
The generator uses these relationships to plot the tooth root, working profile, and tip diameter. The lead (L) of the helix—how far the tooth travels axially in one rotation—is calculated as: [ L = \frac\pi \cdot d_p\tan(\beta) ] helical gear generator
You input the following into your generator: Once you have a working Helical Gear Generator