[TheForge] machining degree wedges

Fri Aug 9 15:33:00 2002

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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