[TheForge] Treadle Hammer Springs

[Peter Fels And Phoebe Palmer]

The argument for multiple springs is that if one of them breaks, 
no one gets killed, probably. Some fine tuning advantage too.
It's nice to choose a design that puts the springs on the far 
side of the hammer.
I use cable in the springs as they have a minimum of friction 
when working,while restraining the pieces of one if it breaks.
Bruce, i'd really like to see your grasshopper in action.
Just got Mike Porter's book on burners...WOW!
I even put aside a Dave Berry book to delve into it!..pf

Steve Smith wrote:
> 
> 
> Bruce Freeman wrote:
> 
>> Rumor has it that multiple small springs are better
>> than one large spring, and you see some treadle
>> hammers so constructed.  I haven't given this enough
>> though to explain why this should be true.  It MIGHT
>> be true because garage-door springs take a load to
>> even BEGIN to extend, whereas most small springs
>> don't.
> 
> This never made sense to me. Spring constant is spring constant, no 
> matter whether it comes from a bunch of small springs or one large one.
> 
> Changing the spring constant, however, is another issue.
> 
> Steve
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
> 
> 
> 
>