Re: Work Stops Update: Photo in Dropbox

On Sat, 29 Nov 2003 19:36:59 -0500, Peter T. Keillor III
<[EMAIL PROTECTED]> wrote:

>OK, I was having fun, and went ahead.  I made a half dozen teenuts and
>a half dozen work stops.  Sorry, I forgot to use hard returns on the
>text  file.  
>
>Link below:
>
>http://www.metalworking.com/dropbox/Workstop.txt
>http://www.metalworking.com/dropbox/workstop.jpg
>
>I finished the ends on the stops by putting all six in the shaper vise
>at once.  It worked well.
>
>Pete
>

Nice work!

Looking at your stops with the locking screws has given me an idea about the
side clamping issue.

The obvious way would be to make the top part slide down a ramp on the bottom
part, but a less obvious way might be better and is ideal for manufacture on a
shaper.. Use multiple ramps.

Usual low quality ascii art, best viewed with a fixed pitch font.

This side        clamping    locking
to work            bolt       screw

        |=========|    |===============|
        |         |    |               |
        |/|/|/|/|/|    |/|/|/|/|/|/|/|/|

         /|/|/|/|/|     /|/|/|    |/|/|/|
        |         |    |     |    |     |
        |_________|    |_____|    |_____|


I just checked my shaper and found that the maximum horizontal feed per stroke
is a bit over 0.30". With a 60degree slope on the teeth, a height of 40 or 50
thou would be achievable for the teeth. The clamping bolt hole would either be
milled as a slot or drilled oversize. A brass or bronze washer would be used
under the clamping bolt to reduce friction. Once the position of the stop had
been fixed with the locking screw, the clamping bolt could pull the stop down
and, in the process, tighten it against the work.

The teeth would prevent rotation of the tops of the stops. I don't know
whether this would be a good or a bad thing.

I might try making some to see if they work.

Mark Rand
RTFM