Straight Hob Tooth Face location

[Paul FallertParticipant @paulfallert28101]

Sir John:

Right you are. It was in MEW #131.

Tony Jeffree's article is also reproduced at:

**LINK**

Drawings there illustrate how the incremental in-feed of the hob forms the involute teeth.

1) Tony "gashes" the longitudinal cuts in the hob with a Dremel tool.

2) For smaller gears, only 3 "lands" were required. Larger gears would require more "lands".

3) In a different article, another author relieved (backed-off) the teeth with a hand file, before hardening.

Very minimalist equipment, indeed.

Paul

[Author]

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