How to deisgn INTERNAL HELICAL GEAR in SW-12

Can any one know how to make internal helical gear and pinion by using of EQAUTION?

if know pl help me, how to do it?

Thanks in Advance

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2 Answers

internal helical gear is not available in solidworks toolbox. the easiest way is using geartrax.
using equation is not a reasonable way. as you should know the exact equation for each gear. but if you want to test that insert your equation in
"Tools> sketch entities> equation driven curve"

 
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