Re: helical


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Posted by BillS on September 15, 2008 at 23:39:37:

In Reply to: Re: helical posted by BillS on September 15, 2008 at 23:03:14:

Well, I calculated teeth as 40 from your gear lead.
I get a diff ratio of 0.10445112 and a gear set:
26/82 x 28/85

If you aren't seeing 30D helix, give that a try and we'll see what's next.

BTW, using a LH cutter to cut a high angle (30D) opposite hand gear is not recommended. Cutting action in your case is aiding workpiece motion, not against it as it should be. Think of it as climb milling. This could cause a rough tooth flank, and I suppose under the right conditions, cutting on one flank only.


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