[TheForge] Cylinder Size

[GHS]

While I was in the process of convincing myself to part with the money for
my Bullhammer 90, someone I do not remember who. (perhaps Mark Mondloch or
Bob Schade) asked me two very good questions.

Why so heavy? (The 90 is 30 times the weight of  my normal "heavy"
hammer.)

Why so fast? Why do you want a hammer that works faster than you can
think?
Again at 250+ BPM  is a whole lot faster than I could ever swing my 3#
much less a 90# hammer. It can do some magnificent things before I can
react. Like the sign on the side says "Engage Brain  Before Operating".
There is definitely no room for a brain fart.

These are good questions both. The only problems that I had learning to
use the hammer was in learning to mitigate both its weight and speed. It
is a lovely tool just had to learn the proper eye / foot coordination.

I am thinking if I was just setting up or helping someone else to set up a
small weekend warrior shop, that I would think of something in the 80 to
160 bpm,  20 to 40 lb. range. You couldn't form railroad track with it,
but most of us do not anyway.

Mike Graf

Mike Linn wrote:

> I'm running a 5 way dual pilot with a 2.5{quot} cylinder and my hammer
> hits HARD....
>
> half a dozen hits absolutely splinters a 2x4....
>
> mike
>
> At 06:43 PM 7/11/2003 -0500, you wrote:
>
> One of the problems I've noticed is
> the relatively soft hit if the Kinyon
>
> style hammers.
>
>  I suspect the automatic reversing switch in the single pilot
> control is
>
> valve is the culprit, since the piston switches direction before the
> hammer
>
> hits the billet. This also reduces dwell time of the hammer on the
> billet.
>
> A double pilot control valve will eliminate this problem but the
> bottom
>
> pilot valve must be adjusted for the billet thickness.
>
> Is there any brave soul out there who has played around with stroke
>
> completion sensors to maximize hammer dwell time and automatically
> adjust
>
> for stock thickness?
>
> Chuck
>
>            Mike
> Linn
>
>      Artist Blacksmith
>          McCalla, AL
>        AFC Webmaster
> http://afc.abana-chapter.net
>
> Some people are like Slinkies...not really good
> for
>
> anything, but you still can't help but smile when you
>
> see one tumble down the stairs.
>
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