[TheForge] machining degree wedges

Fri Aug 9 20:48:01 2002

        Bob,  Thank you.

        When your milling the wide plates to an angle, do you clamp them in
the vice in a set of angle blocks? or tag them to the table and mill in
between the dawg downs?
        The reason I'm asking is every tapered  key I've cut has a curve to
it like the grain has been disturbed and it curls up on the end.  Do you
flip keys or the wide plates when cutting them to split the distortion? or
control this curling?

Ralph


----- Original Message -----
From: "Bob Bergman" <[email protected]>
To: <[email protected]>
Sent: Friday, August 09, 2002 3:28 PM
Subject: Re: [TheForge] machining degree wedges


> Ralph, I find most keys to be 1/8th in. per foot or 1 degree. When wider
> ,I think it is from wear and I try to remachine the dovetail area.  I
> use .017" for 1 degree. I will machine a wide plate with the taper and
> saw off widths that I need.Bob
> ----- Original Message -----
> From: "Ralph Sproul" <[email protected]>
> To: <[email protected]>
> Sent: Friday, August 09, 2002 1:55 PM
> Subject: [TheForge] machining degree wedges
>
>
> >         On most of the die keys the taper of the key is 1,  1 1/2, or
> 2
> > degrees.  I was trying to figure out what the actual measure per inch
> is and
> > consulted a chart in the trigonometry book.  It looks like charts show
> a
> > proportionate ratio between parts of a triangle.......so is it the
> Sine or
> > the Tangent you are concerned with when setting up a wedge, ram, and
> > dovetail taper??
> >         I noticed the numbers are insugnificant(as far as a
> difference) in
> > the 1 & 2 degree chart, but which one is it when you get to larger
> angles?
> > Just wondering if anyone has any machinery layout experience in this.
> >         So is the bottom line  - a 1 degree angle should be .017 per
> inch,
> > and a 2 degree angle should be .035 per inch?..........is that what
> those
> > charts are saying?
> >
> >
> > Ralph
> >
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