[TheForge] Krause/Nazel type air hammer

Sun Dec 1 10:56:00 2002

steve,

the idea is pretty straightforward but the transfer of idea to reality has not been so straightforward as one would hope. krause demoed his hammer over two years ago. if it was a workable idea and so much better than the kinyon you would think they (krausehammers) would be all over by now.

there has been a lot of talk over on the keenjunk site about this project. mark krause was posting about his effort to upscale his design to a larger size. also a guy named john larson has had some success. there is a search feature at the keenjunk site to search for their postings.

i'm surprised that none of the kinyon builders haven't responded to your comment about kinyons "just bounces between top and bottom". from what i hear the kinyon hammers are doing a fair amount of work as they bounce. also a "very large compressor" isn't needed unless you do very large work. check out larry zoellers downsized kinyon that runs off a fairly small affordable compressor.

bob (still using a 25lb LG)
_______

>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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