[TheForge] Krause/Nazel type air hammer

[Dan Rathburn]

----- Original Message -----
From: "Gladish Family" <gladish@cnw.com>


> I decided not to build one of these because of how much time I don't have,
> but after gazing at Mark's book and my sketch pad for hours, I concluded
> that the job could be done by a linkage that activates two ball valves.
One
> opens as the other closes.
> Times two, of course, for upper and lower air passages.
> Get the proportions of the levers right for the treadle travel, and you've
> got it with components you can buy at Ace Hardware.
> Simple, huh?
> Not as cute as Mark's, but it would work.
>
> Andy G.
>

I would be concerned that the ball valves that you would buy at a "Home
Depot" type store would nt hold up to the rate of cycling that you want from
a air hammer. Haveing build a few test fixtures that I had to run at cycle
rates 12 to 120 cycles/minute I don't think the valve stims could take it
for long.

Dan Rathburn
Elgin, IL USA