Hi Mike,
Your idea will almost certainly work. When I installed my wood turning
lathe I initially had the same type of problem and so I made a stand out
of two lengths of 6" steel heating pipe with flanges welded onto each
end which I rag bolted to the floor and filled with a weak cement/gravel
slurry
mixture and capped off with a 1 1/2" thick wooden top. The vibrations
disappeared immediately.
Ian
Mike Romine wrote:
I am using aluminum and steel extrusions and box channel for
the frame. These hollow members are very underdamped in nature. 2 ways
to decrease the amplitude of vibrations is to either increase the
damping coefficient of the material, or increase the mass of the
system. But, I think I am going to try to fill my
hollow structural parts with a reinforced polymerized concrete. This
will make my machine heavy as hell, but should also decrease the
amplitude of the vibrations radically. I will let you all know how it
works.
Best wishes
Ian
--
Ian W. Wright LBHI
Sheffield Branch Chairman of the British Horological Institute.
Bandmaster and Euphonium player of the Hathersage Brass Band. UK.
See our homepage at:- or
'Music is the filling of regular time intervals with harmonious
oscillations.'
