Re: Making Stepper Pullys

Hi Bill,

If the calculations are available, then can be coded into a program. If
only "table" information is available, THAT TOO can be coded! Either
exported from an Excell spread sheet data set, as I've mentioned, or
simply hand-entered at the keyboard.

If the XL's are a true TRAPEZOID profile, it would make things easier.
And you're saying we don't have to make the three passes?

Can ya make me an XL 037 cutter? I'll have to work out a tool holder
(fly cutter).

Alan KM6VV
(Have rotary table will travel)


wanliker@... wrote:

>
> In a message dated 11/25/2001 4:27:18 PM Mountain Standard Time,
> KM6VV@... writes:
>
> > I think Bill wants to make multiple passes on the tooth profile,
> > starting before, on, and after centerline. I'll let Bill quote it from
> > the article. This, I'm told allows cutting the tooth profile with a
> > simpler cutter (I think).
>
> This applies to cutting involute gears, rather than cutting Stepper pulleys.
>
> Although it is stated in some catalogs that the shape is involute.
>
> Most of the stepper pulleys can be cut with a trapezoid shaped tool.
> The critical dimensions, are the OD of the blank, The angles of the > cutter, and the width of the tip of the tool, and the depth of the > cut. If we can input the number of teeth, and the pitch, hopefully > a program will compute these values.
> bill