Paul ( Skiing8 ) wrote:
"AlexW" wrote in message
...

Paul ( Skiing8 ) wrote:

I am going to be cutting through a wall with an angle grinder and I wish

to

cut down the dust as much as possible.

I have actually done this BTW ... consider carefully you could avoid the
dust by using a stone cutter and small amounts of water. See
http://tinyurl.com/48l3b.



I have an idea for a dust collection bin.

Here's how it works.....

I will get a drum of some kind (one that can be sealed) that is fairly
robust and will not cave in. In the top of the bin I will cut a hole

that is

the same size of the vaccuum hose. At the other side at the top I will

cut

another hole that I will insert a plastic waste pipe that extends down

to

the bottom of the bin. The bin will then be filled a 1/4 of the way with
water.

Another hose will be run from the waste pipe to a collector near where

the

cutting will be done. When the vaccuum is switched on it will suck air
through the system and filter the fine dust through the water.


I think you will need a very good vac with mega suction to capture the
all the dust!

... if you go this way there are various dust collection systems that
can be bought off the shelf. The Triton one I have (use for timber / mdf
mainly) works well from a std vac. See bucket in
http://tinyurl.com/5qlvs. The bucket cost about £30 IIRC and can be
bought from B&Q warehouses. How effective it would be in this
application, I am not sure as the operation really will create a hell of
lot of dust.

HTH,

Alex.


Forgot to really mention that I already have a grinder and disk and don't
really want to spend any extra cash at all. The bucket looks like what I
have in mind... maybe I will use one a bit bigger though, all the fittings I
have or can get from my dad for free. The main important difference is the
'water filtration' part, as the dust and air are sucked through the water it
should catch most of the dust and save the vaccumm from being clogged.

I think the problem is that the vacuum (even when not having to try to
pull a stream of air through water) can't create a strong enough/high
enough volume airflow to capture the sheer mega blast of dust an angle
grinder kicks out. For my next attempt at chasing a wall with an angle
grinder I think I might rig up a _big_ fan (30 cm dia or so) I aquired
from some old computer air cooling kit and see if it'll at least keep
the dust cloud from permeating the rest of the house I'm working in
(even if it covers the street outside in dust :-)