Re: Fly cutter on Sherline.

Hi Ballendo,

I haven't seen anything like what you describe run, but I can see how it
would be effective. Sounds a little like hobbing a gear, from what I've
heard (something I want to try).

They were cutting a gear with a profiled flycutter in the catalog. Fred
caught it:

Fred Hansen wrote:

>
> You got it Alan,
>
> Micro-Mark page 11 shows a Sherline Mill with a tilt rotary table
> cutting a bevel gear. Also shown is a Indexing Attachment that is
> set-up to flycut flats or other features on round stock.

Alan KM6VV

ballendo@... wrote:

>
> Alan,
>
> The table doesn't have to rotate fast... Backknife lathes used in the
> furniture industry "turn the blank" only ONE revolution. The tooling
> doing the cutting, on the other hand is spinning wildly fast... It
> looks like a cartoon hatchet war. The "back knife" is an assembly of
> blades positioned to cut the required shape as they spin in a
> parallel axis to the work , which is rotatiing relatively slowly.
>
> Anyway, I didn't look at the catalog, but you could easily set up the
> same sort of operation with a fly cutter in the spindle and a part in
> the rotary table, turning slowly...
>
> Hope this helps.
>
> Ballendo