[SEL] re: Gear making in brief - a question

[Reg Ingold]

It wont worry you! It will work as close as ever you will need.
Reg & Marg Ingold.
Newcastle, NSW, Australia.
randmingold at hotkey.net.au
http://www.oldengine.org/members/randmingold

----- Original Message ----- 
From: "Graham Harris" <ozengine at yahoo.com.au>
To: <sel at lists.stationary-engine.com>
Sent: Monday, January 31, 2005 2:23 PM
Subject: [SEL] re: Gear making in brief - a question


> Hi Rich and Tommy
> 
> N-i-c-e practical info on gears mates. I's even saved
> me a copy.
> 
> Got one question that no one seems to be able to
> answer for me. I would like to have a go at cutting a
> cam gear for my Novo 4. Needed is a 56 tooth gear, 10
> pitch and 14.5 PA I'd assume. I have a involute gear
> cutter here that cuts the 54-55 tooth range (or
> whatever is the standard teeth count for the numbered
> cutter). So the question is...can I use this cutter
> indexed correctly to do the 56 teeth? I mean, how much
> "out" would it be? My understanding is that the
> cutters are only exact for one teeth count and all
> others in the range are close approximations.
> 
> Thanks much
> 
> Graham in Oz
> 
> 
> 
> 
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