Posted by Ron V on July 22, 2014 at 16:01:28:
In Reply to: tracing a helical gear on hobber posted by steve green on July 22, 2014 at 11:11:57:
You'll need to learn how to transpose the diff equation for your machine.
I'll create an example using the diff equation from one of our hobbers.
Diff equation -
Decimal Ratio = (7.95775 x Sin Helix Angle) / (Module x Hob No. Starts)
Transposing this equation to work backwards from a pre determined gear train becomes -
Sin-1 of Helix Angle = (Decimal Ratio x Module x Hob No. Starts) / 7.95775
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