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Gues what and did it work?

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awemawson:
Use one of those hand pump water spray bottles to control the dust - works a treat - spray high and let the water mist settle downwards collecting the dust particles

PekkaNF:
Thanks for the spray idea, might try that one.

Wife said that I looked like a jeti when I appeared.

Living room is sort of a nook, two openings in one corner. I covered them plastic masking plastic on both sides and then the whole corner. Taped to the wall. I also had a duct (channel ??) fan mounted on a small window to create under pressure in the livingroom to keep the dust in there. I really don't like the concrete dust around the house.

My idea was to fit three wheels on extremes and mount the grinder in the middle, idea was that the wheels will hit the valleys and grinder will flaten the top of the hills. Worked pretty well. Build it pretty symmetrical to avoid gouging. Interesting thing was that moved the front arm mostly to one side on grind close to wall and it did work. I was afraid "outrigger" would tilt it excessively.

The dust extraction worked remarkably poorly. Maybe a brush on the perimeter or a floating ring would have produced better results. If I was going to use it more it would have need more though and experimentation but I set to finish grinding it yesterday.

Another thing was that even though I had a big shopvac the bag was clogging all the time. Better automatically shaking and filtration would be nice but those are expensive for sporadic use. My shopvack has a manually activated shake or you could block the inlet momentarily to kick it, but it is not that great. Maybe a Thien dust separator would be a good idea.

Pekka

efrench:

--- Quote from: PekkaNF on May 24, 2015, 03:11:22 PM ---
But dust removal did not work. Disk propelled debris out warp speed tangenttially, shop vac clogs and needs shaking all the time.

--- End quote ---

Why not add a hose to the outlet side of the shop vac and run the end outside?

AussieJimG:
Perhaps a cyclone on the input to the ShopVac?

Jim

Fergus OMore:
Call me a jaundiced old fart but this is a recipe for a rather nasty bout of silicosis.

Frankly, if you have to do it- get someone else to suffer. ( Sorry but some don't care)

Somewhere in the 'knitting' here, I said that I was brought up where men used water jets to win coal- and my generation of classmates is basically crippled or wiped out.

I hope my comments are constructive and that you don't join that dreadful, lingering  and choking existence that precedes premature death.

In a few days, I'll be 85. Of course, I did become exposed to a lesser degree and suffer a bit but I'm still here.
I moved on.

Norman

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