[TheForge] Krause/Nazel type air hammer

[Steve Smith]

The idea is pretty straightforward. You use a motor to drive a double 
acting air cylinder. This is connected to the ram air cylinder (also 
double acting) via the air ports. The air provides the give in the 
hammer that is done in a Little Giant with a spring and toggle arms.

The big advantage over the Kinyon style is control. The Kinyon hammer 
ram just bounces between top and bottom (or the top and the work). The 
Kinyon can only push the ram from one side at a time (assuming I 
understand how the Kinyon works...). The Krause/Nazel hammer applies air 
to both sides of the piston. The side with the most pressure dictates 
which way the ram will move. The pressure can be reversed immediately by 
changing the foot treadle position (and altering the balance of 
pressure). This makes it much more responsive.

It is also a way to avoid buying a very large compressor that I don't 
have a lot of other use for. Since I'm doing this for fun, I get to 
build it myself and mess around with something different.

Steve

mike wolfe wrote:
> 
> 
> Steve Smith wrote:
> 
>> I'm starting on building a Krause/Nazel type air hammer,
> 
> 
> 
> Steve:
> Tell me more about the Krause/Nazel type air hammer, I had seen it in 
> operation at the conference, and I had been waiting for Mark to go 
> further with its evolution, I also thought "Sid" was getting involved 
> with the project a while back.
> I have not heard anything for a while until you had talked of it.
> Are there new plans or new developments about the Krause/Nazel type air 
> hammer.
> Any info would be wonderful..
> 
> Thanks
> Mike Wolfe
> 
> 
> 
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