Rick, I for one am glad you're not giving up on us newbies. My question is, however, what is this "no blood" thing?!? Around my house, the job ain't finished until I've bled on it! ;)
Not that I like it that way, but that IS how it usually works out!
Bill in OKC
--- In gingery_machines@yahoogroups.com, "Rick Sparber" <rgsparber@...> wrote:
>
> David,
>
> Given how difficult it is to hold a very small screw, maybe the user will
> put up with a bit more hassle with the vise such that we can side step all
> slots. The basic idea is a tiny cup with a hole in the bottom.
>
> Take some 3/8" diameter rod, cut off 1/2",
> face and set the overall length to 0.500",
> drill in 0.450" with a F drill to leave a minimum floor thickness of 0.050".
>
> Then drill through with the clearance drill for, say a 2-56 screw.
> Tap the larger diameter 1/4-20.
>
> The tiny screw would then be dropped down the hole, maybe needing tweezers
> to get it to point down through the clearance hole. The cone divot left from
> the F drill's tip would help guide the screw. If the screw is steel, a
> magnet under the tiny hole might help assuming the vise is made of aluminum.
>
> With the screw in place, use a 1/4-20 threaded rod to lock it down and be
> the handle.
>
> I'm not ready to "abandon" my newbie friends.
>
> Rick
>
> -----Original Message-----
> From: gingery_machines@yahoogroups.com
> [mailto:gingery_machines@yahoogroups.com] On Behalf Of David Frantz
> Sent: Monday, February 28, 2011 2:08 AM
> To: gingery_machines@yahoogroups.com
> Cc: gingery_machines@yahoogroups.com
> Subject: Re: [gingery_machines] new article available: A Different Kind of
> Screw Vise
>
> 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
>
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