[TheForge] Power hammer questions

[theforge@mailman.qth.net]

On Fri, 21 Mar 2003 18:06:59 -0900, you wrote:

>How about a self contained power hammer?
>
>I've been making drawings and hashing through details with Steve Smith
>recently and I haven't run into anything that'd be a deal breaker.
>
>The big problem folk seem to be having is the control valving but =
there's a
>very simple system to be found in the Massey pneumatic power hammer, =
patent
># 707,246.
have you managed to find an off the shelf valve that will work (and be
big enough)? What size air passages and valve do you need. an off the
shelf valve solves the major stumbling block fo rnon machinist types.
 Geoff