FOAK: Sound-proofing.

If one wished to install a potentially noisy toy such as a milling
machine in one's (very big) garage, how would one go about keeping the
neighbours happy at least cost?

I presume building a sound proof(ish) room around said machine would be
the way to go, but out of what?

--
Krusty.

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Egg boxes. Without the eggs

 

Do they really work then? I have a limitless supply of catering sized
egg trays thanks to SO's cafe, so it would certainly be a cheap
solution!

--
Krusty.

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I don't know how true it is but they are supposed to work. The music
rooms at school[1] had a similar looking arrangement and they seemed to
work[2].

1 . This was a while ago.
2 . Couldn't hear any shite drums or guitars in the room next to them.

 

Egg flats will slightly improve the acoustics, but they'll do jack for
soundproofing.

At a guess, a lot of the sound will escape as vibrations through the floor
anyway.

 

Er, no.

This might help as a starter:

http://www.soundonsound.com/sos/feb98/articles/soundproofing.html

 

But the real question is do you like the neighbours? If not **** 'em.If
you do[1] then a mill in the garage won't be a to much trouble.

1. They supply the beer at the bbq.

 

Generally, mass is what you need for sound proofing. You could also look
at isolating mountings for the machine. What part is the noisiest, the
rumble of the machine running, or the noise it makes removing metal?

 

if it chatters "cut the speed and increase the feed"
(hopefully you know what I mean)

I mention that because it ain't just acoustics from the mill head you
need to consider, most of the annoying to neighbours stuff is likely to
go through the bed / mountings / floor.

if it was me...

railway sleepers, cheap and wood is hard to beat, especially if rubber
mounts are used between the sleepers and mill bed.

for acoustic insulation hard to beat two layers of foam with a lead
sheet suspended between them, the foam absorbs any movements induced in
the lead by the sound waves and damps it down, and lead itself doesn't
"ring" like a sheet of steel would.

a lot cheaper and prolly pretty damn good would be six inches of
builders foam, whatever you use make sure it's swarf proof

 

Just tell them that you have a milling machine and if they need any milling
done you'll give them discount.

What miller did you get?

 

Molly wrote:
them discount.

Home application? Miller Lite.

 

I do quite like them, yes. Plus the bloke on one side's a plumber who's
saved me a fortune in the past, so I /really/ don't want to piss him
off.

--
Krusty.

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I don't know tbh. It was the metal removing that I was worried about,
but the rumbling could be worse I s'pose.

--
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I was thinking of getting a bunch of engine mounts to attach it to.

Initial thought was ply walls & roof lined with a few inches of foam. I
s'pose a ply/foam/ply sandwich for the floor might help too.

--
Krusty.

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'02 MV Senna '96 Tiger '79 Fantic 250

 

"In space, no-one can hear you ream".

--
Krusty.

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I haven't yet. It's just a 'Plan B' at the moment. I'm having some
prototype widgets made as we speak, & if all goes well, they'll be
going into production. However if I've got the design a bit wrong, it'd
be easier to tweak things myself rather than sending stuff back & forth
to the fabricators.

More importantly it would be faster, which has become an issue as of
yesterday, as it looks like I'll be making an "and so the world turns"
post come the end of January.

--
Krusty.

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'02 MV Senna '96 Tiger '79 Fantic 250

 

Audible sound can be reduced by suggestions elsewhere, as Egg boxes etc.
Also the green underlay used under laminate flooring is quite effective.

Physical vibration can be an issue as various "rumbles" will affect
differing areas so isolation from the ground can be achieved by fitting.
A chat with these people may help

http://www.vibrationisolationproducts.com/


--



Robbo
Trophy 1200 1998
BotaFOF #19. E.O.S.M 2001/2002/2003/2004/2005
B.O.S.M 2003, 2004, 2005
FURSWB#1 KotL..YTC449
PM#7
..

 

Acoustic mounts are more than just any old rubber/metal sandwiches.
Well, that's all they are mostly, but ykwim.

You can get properly designed ones for the weight of the machine and the
expected vibration, off the shelf from various suppliers.

 

They're good, they are. I'm sure I dealt with them 20+ years ago for
genset mountings. Very helpful.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Krusty

You probably won't have too much of a problem. I run a Bridgeport in my
garage and you really can't hear much from outside when it's running.

--
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