You could try a slight redesign. Here you might try to bore the vise in a lathe with a flat seat where the head of the bolt would sit. That way you could use any end mill to cut the slot for the head. The key here is that the slot is cut above the seat for the head. The slot for the screw shaft is a little more difficult and needs to be sawn in some manner. Once you have a couple and the corresponding arbor, slitting saws can come in very handy.
You probably could mill the slots but that requires a very tiny mill in a relatively deep slot. Of course resizing the vice body would help here. Another possibility is to use this as an excuse to make an EDM machine. The problem then is that these vices are no longer beginners projects. If you are bull headed enough you could even use a thin file to cut your slot German milling machine style.
David A Frantz
websterindustro4at4mac.com
Sent from my iPhone.
On Feb 27, 2011, at 9:01 PM, Rick Sparber <rgsparber@aol.com> wrote:
> David,
>
> I agree. It is those small screws that need this clamp the most. It would be
> easy to scale the vise down to fit sizes below 6-32 if I could get a
> matching end mill.
>
> Rick
>
> -----Original Message-----
> From: gingery_machines@yahoogroups.com
> [mailto:gingery_machines@yahoogroups.com] On Behalf Of David Frantz
> Sent: Sunday, February 27, 2011 4:01 PM
> To: gingery_machines@yahoogroups.com
> Cc: valleymetal@yahoogroups.com; gingery_machines@yahoogroups.com;
> atlas_craftsman@yahoogroups.com; mill_drill@yahoogroups.com
> Subject: Re: [gingery_machines] new article available: A Different Kind of
> Screw Vise
>
> This is a nice one and is very close to what I would have done. You
> mentioned making such clamps for larger bolts but I might suggest that the
> real advantage is for smaller bolts and machine screws. A 3/8" bolt is far
> easier to handle at a grinder than a 2-56 screw. I'm only commenting at
> all because small screws are a real pain at the grinder.
>
> Thanks again for another article.
>
> David A Frantz
> websterindustro4at4mac.com
>
>
>
> ------------------------------------
>
>
>
>
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