Thread: expanding foam and steel frame
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16-08-2013 #1
Hi,
I read somewhere if you fill the steel box with expanding foam it will helps a little to avoid vibration and everything else associated with it?
It is true or just a myth?, anyone tried it?
I am also interested in this one product :
Cheers
Gytis
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17-08-2013 #2
works on car bonnets and door skins so should work!
But I think its only low frequency noise that it works on.
Peter
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17-08-2013 #3
No it add's very little resonance dampening to thicker steel, ok on thin sheet and better than nothing but only just.!!
Best way I've found is to use kiln dried sand, the stuff they sell for brushing in top block paving.
Seal ends, (expanding foam works here.!) with plates and put large hole at top & bottom for filling/emptying quite easy and makes big difference to vibrations and resonance coming from machine, plus it won't try walk off when shit it''s fan. . Lol (Those that have built and got it wrong will understand. .)
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17-08-2013 #4
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17-08-2013 #5
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17-08-2013 #6
Hi jazz
Just remembered i had that bookmarked so posted it as it might have been usefull, it's a long while since i had a look @ it and as i recall it got a bit too involved and made my head hurt, the guys were experimenting with various aggregate and resins, i think it could be usefull to deaden the vibration in the main frame but think it would probably be a bit on the heavy side for the gantry
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