Surface grinder dust control

[JoeLee]

Edit:

I have always wondered about using plastic hose or anything flammable for grinder dust extraction. Have you ever had any issues with fire with that set up?

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No, I've never had a fire. The hose is supposed to be fire proof or flame retardent. If I do a lot of grinding where the dust builds up in the shoot every now and then I'll see a little glowing..... you know how that steel dust burns, but never any fire. I keep a close eye on things.

JL..............

[Mcgyver]

Does it mostly go forwards, or does it really go in all directions? I don't have a SG, but if I get one, I am thinking of putting it right next to the garage door pointing "out".

Pointing it out side would be a good idea - if you take the back plate off and open the door. The pattern is definitely oriented in the down wheel direction, but unlike the sparks its a broader cone and bounces all over.

the particles have enough velocity they will ricochet off of whatever they hit - ie the SG's backstop or whatever else is there, which is a big contributor to them "going everywhere"

My idea is a small metal box surrounding things with deflector and 'trap'. Position at the source of spray of grit the hope is it would capture the grit. Opening the garage door for me is not an option...climate aside it takes about 1/2 a day move all the stuff needed to open it

[pinstripe]

Except when dressing, when abrasive goes everywhere.

Does it mostly go forwards, or does it really go in all directions? I don't have a SG, but if I get one, I am thinking of putting it right next to the garage door pointing "out".

[Abaker]

+1

Looks like it was just uncrated

Very nice!

Sent from my SM-N910V using Tapatalk

Edit:

I have always wondered about using plastic hose or anything flammable for grinder dust extraction. Have you ever had any issues with fire with that set up?

Sent from my SM-N910V using Tapatalk

[Abaker]

+1

Looks like it was just uncrated

Very nice!

Sent from my SM-N910V using Tapatalk

[JoeLee]

This is the mount I made for the T&C grinder. It's a real tight fit as I have little room to fit anything in there.



I'm not sire if I'm even going to be able to hook the vac hose up to it.



I tried to make the mount as versatile as I could to try and accommodate the various positions of the grinder, but I think there is still going to be a few positions and set ups that I won't be able to use it on. As long as I can dress the wheel into it I wold be happy.



JL...................

[JoeLee]

This is the other one I've been working on..... for the past 4 years or so. I think this one was one of those dental vacs. It has a real Electrolux motor in it, has good suction. I modified the inside to take a dust bag. I used the bag cage from an old vac and made some mounts for it on the bottom of the compartment.







JL..................

[JoeLee]

This is the dust collector vacuum unit that I use on my SG. It's not really a vacuum, it doesn't have much pull. I think it originally was one of those tings that the nail salons use to wisk away the smell of the nail polish and nail filings, Ha, Ha.
It's not a good design for dust since it pulls all the abrasive crap through the squirrel cage blower and the motor bearings eat most of it. It does catch a lot of dust. I made a pre-filter out of some PVC pipe fittings that go in line. There are a couple filter discs that I made out of an old furnace filter. Most of the stuff gets stopped right there.




This is what the inside looks like. The remainder of dust that gets past the in line pre-filter stops here.
Hey.... it's easy to clean out.



Here is the pre-filter. If you look close you can see a couple filter discs sitting on the floor next to it. Those are what I put inside. I think I staked three of them in there.



JL.......................

[Danl]

I simply run a shop vacuum with a long hose connected to the hood mounted on the left side of the SG table. No problems so far. If I ever need to upgrade, I'd go with an ash vacuum cleaner.

I recently did this exact thing in my shop. I had to raise the inlet for the shop-vac to a height that wouldn't suck up the coolant, but I'm seeing and sniffing a lot less airborne particulates.

Dan L

[engineerd3d]

@JoeLee

That is one beautiful machine.

[n2xd]

What supplys the vacuum

That is the best way to control the dust, none better. But most of us HSM guys don't use coolant because our machines aren't used on a daily basis.

This is what I rigged up for my grinder. It catches about 90 % of the dust. Grinding isn't the big issue it's dressing the wheel.




I have a similar setup for my T&C grinder that I'm still working on. The problem there is there isn't much room for the shoot or funnel like there is on the surface grinder. If I re-position the head then I have to re-position the collection shoot and there isn't any room to play.

JL................

JoeLee,
What are you using the supply the vacuum and hold the dust?

[Mcgyver]

What comes off the grinder. From careful observation of grinding fines (yes, I know, living the dream) I'm of the opinion that almost all is chips with very little abrasive material. Except when dressing, when abrasive goes everywhere.

So, the best way to deal with the grinding fines is flood coolant. Best way to grind period - better finish, work doesn't grow and wheel is a lot less prone to clogging. That doesn't help much all with the spray of grit when dressing which is where the real potential damage to neighbouring machines comes from. I too suffer from lots of machines crammed together

This is in the idea phase, but I've been thinking of making some sort of removable sheet metal 'trap' to position around the wheel and dresser that captures the abrasive spray. With flood used during regular grinding, the only nasty bit is dressing....which such an attachment might address

[JoeLee]

The best dust reduction technique I have found is to grind wet.
Yes you have to scoop out the disgusting black sludge from the end tank and the suds resivoir but its better there than on your machines.

That is the best way to control the dust, none better. But most of us HSM guys don't use coolant because our machines aren't used on a daily basis.

This is what I rigged up for my grinder. It catches about 90 % of the dust. Grinding isn't the big issue it's dressing the wheel.




I have a similar setup for my T&C grinder that I'm still working on. The problem there is there isn't much room for the shoot or funnel like there is on the surface grinder. If I re-position the head then I have to re-position the collection shoot and there isn't any room to play.

JL................

[MrFluffy]

The best dust reduction technique I have found is to grind wet.
Yes you have to scoop out the disgusting black sludge from the end tank and the suds resivoir but its better there than on your machines.

[MattiJ]

Cyclone dust separator to collect most of the crud and extinguish possible sparks, followed by shop vac or good household canister vacuum with hepa filters?