On Sunday 03 January 2016 12:37:55 Kirk Wallace wrote:
> On 01/02/2016 10:02 PM, Cecil Thomas wrote:
> ... snip
>
> > Several years ago I wrote a program to "generate" involute gear
> > teeth by making multiple cuts of the same tooth from differing
> > angles with a rack shaped cutter. This
The book which has a selection of standards is Gears for small
mechanisms by W.O. Davis, it was reprinted by TEE publishing ISBN
1857610156
Note the correct form has a rectangular root which stops the end mill kludge.
We just used the Thornton cutters to get it right.
The cycloidal form has a
On 3 January 2016 at 17:37, Kirk Wallace wrote:
> I'm also working on a New Haven clock that seems to use custom screw
> threads (#3-40?) that don't appear in Machinery's Handbook or anywhere else.
I thought it might be a watch pendant thread, or Progress, but I
On 01/02/2016 10:02 PM, Cecil Thomas wrote:
... snip
> Several years ago I wrote a program to "generate" involute gear teeth
> by making multiple cuts of the same tooth from differing angles with
> a rack shaped cutter. This eliminates the need for the different
> cutters when making only one cut