[TheForge] Wanted suggestions on hammer tooling.

Andy Vida [email protected]
Sun Jan 18 14:34:00 2004


Andy Vida wrote:
> 
> [email protected] wrote:
> >
> > Ive been
> > thinking of making a bottom die with about a 1.50 hole in the center.  Drilling
> > from the side of the die and putting in a 1/2" acme lock set up to hold whatever
> > tooling.  Turning a relief on the 1.5 die "post" and drilling a dimple to
> > locate it.  I am curious as to what others think.  The shoulders of the die above
> > the post would normally be supported by the flat part of the bottom die.  I am
> > worried about whether a 1/2" acme screw hole will get flattened to the point
> > of the screw not working.  I would drill and tap on the bottom side of the die
> > block.
> 
>         
>         The force of the blow
>         will be concentrated on a relatively small, ring-shaped area
>         defined by the hole and the shoulder of the tool you have
>         inserted. 

	DUH... I was assuming a round footprint on the tooling, which
	is of course not necessarily the case.

	One other thing:  If you are worried about the 1/2" hole staying
	round, which I don't see as a problem with the right material,
	you can also relieve the mating durface of the tool where it
	sits over the hole such that there is no chance of force being
	applied directly over the screw, like so:


                                      _____
                  ___________________/_____\___________________________

                                        0  <screw hole

	The relief need be big a few thousandths deep.  Just enough to 
	life from the die face.  I don't see this as being necessary,
	though.