Wish I'd thought of this sooner

Mike, would plastic bags ...

Clem Wixted Jonesboro, AR

>...work with the standard Baby Dough Boy original equipment bags?

Clem

don't know, why not try?

Mike Schwing from Md.

>The huge bags from AFF provide a much greater airflow than the standard bags that came with mine, though the principle is the same. The bottom bag of my replacement bags is very thick, heavy canvas, and it couldn't have provided much airflow surface. The original equip Delta bottom bag was pretty thin.

Let us know how it works. I can't be the first guy to give this a shot. Cyclones generally, from what I've observed, use a can instead of a bag - same concept. I may not have reinvented the wheel but the garbage an instead.

I once reinvented the toilet. Thought I was absolutely brilliant with my wave action device I invented for my salt water reef tank. I described on a very early Compuserve forum my little reservior tank that had an overflow built into it that if I dumped enough water quickly into it would empty the whole contents at once into the main tank. I was returned a reply from someone who said "congratulations, you just invented the toilet. DOH!

Re: Wish I'd thought of this sooner

Ron Sardo in PA

>Here is what I do.

Here is the inside of the lid

Place a cardboard sleeve inside the bag to prevent it from collapsing.

This works like a cyclone, and all the chips fall into the can. Just pull out the sleeve, pull out the bag and your done.

Re: Wish I'd thought of this sooner

Chuck Ludwigsen

>Yep, that shouldn't be a problem. I have the Shopsmith dust collector and it uses and plastic bag on the bottom. It is a very thick mil bag. Are you just using standard Hefty's?

I'm 1 bag away from needing to order more. If standard bags work, you could have just saved me a good bit of money.

Chuck

Re: Wish I'd thought of this sooner

Mike Schwing from Md.

>Standard 2mm bags from Home Depot. They're big, clear bags at 80 gallons. I think they're about 25 cents each, and even though I try to reuse them, if they catch something and split on the way to and from the chip dump, its still money well spent. Now that I can fill them with the dust collector they're even more useful - and they're not single purpose things. Need a big plastic sheet to put over something - cut one in half. I cut them in half and lay them on the table saw when I need a flat surface for painting blanks with Anchorseal.

Re: Wish I'd thought of this sooner

Chuck Ludwigsen

>Cool!!!

Thanks, Mike. Needed an excuse to go to HD anyway ;-)

And I bet the bags work much better than Newspaper for doing the anchorseal. I sealed a piece I was donating to the last club meeting here and set it on a piece of newspaper. When I pulled it off, you could read the text backwards :-P

Chuck

Re: Some Considerations

Lyn J. Mangiameli

>If you have the typical Taiwanese dust collector with upper and lower bags, there are a couple of things you might want to ponder with your current setup.

One is that all chips pass through the impeller (fan blades) on the way to your lower bag. This means that those chips smack and grind their way through eroding the blade (possibly even taking chips out of it) and overtime reducing its efficiency considerably. The way to avoid this is to have the chips removed prior to reaching the impeller. The Onieda has a cyclone seperator built in prior to its impeller, but most of us achieve it by using a free standing garbage can cyclone before our dust collector. You see a home made model earlier in this thread, or you can purchase a commercial top for not that much money.

The second problem is filtering area and the suction losses due to the resistance of the filter. You can reduce those suction losses by either increasing the filter area or decreasing the filter resistance. By adding your impermeable bag, you have reduced the filtering area, creating more back pressure, and have decreased suction at the inlet. You can compensate for this by either adding a larger top bag, or changing to a bag or cannister that offers less filtering resistance for the same volume. The new Jet canister filter dust collector is an example of this.

Re: Wish I'd thought of this sooner

Peter Teubel

>I tend to produce ALOT of shavings and I really don't like to stop and shovel every couple hours. Not because I'm a neat freak, but after a couple hours of turning I simply cannot walk in my shop.

I happened upon a huge dust collector from a woodworking shop locally. The impeller is 24" in diameter and made of 1/4" thick steel. Very heavy duty. I attached a old 2hp motor that originally came with my big lathe.

I built a collection chute, of sorts, and its connected to 9" duct.

After some tests, I had to boost the speed on the impeller because the motor I installed didn't seem to be fast enough (1750rpm). So I have an 8" pulley on the motor driving a 4" pulley on the main shaft.

I then cut a hole thru the wall of my garage/shop and fabricated a pipe so I could mount some flex hose.

All the shavings then go into my 4x4x8 trailer for a quick 1 mile trip to my town's local recycling area. I just have to remove one hose clamp and its selerated from the building....ready for travel. I cut a 20" hole on the side and attached an old DC bag for the exhaust.

Now it takes me about 60 seconds to sweep up the shavings into the chute and...POOF....they are gone. Back to work in a jiffy.

NOTE: I do have to sweep the shavings across my shop to the chute. I originally had it ducted around the back wall and the chute was closer to my big lathe. But the 9" duct pipe would pick the worst time to collapse under the load from the collector. Granted it was only HVAC duct, not industrial duct work, but the idea was to do it on the cheap. The short duct now in place handles the suction with no problems.

The only issue is the fact one has to wear ear protection when its operating. VERY LOUD!

Clean shop=sick mind

Darryl Hansen

>Mike didn't you know a clean shop is an indication of a sick mind?? I have a 30 gal trash can with a "cyclone " lid between the lathe and d/c. I line it with a trash bag. Makes clean up easier but my shop is still a mess so I must be well :>)

Re: Wish I'd thought of this sooner

Mike Schwing from Maryland

>I could hardly be more envious of anything! Nice job Peter!

Very cool Peter!!

Dave Peebles Lyons, Ohio!

>Hello Peter,

Man, I love that set-up. A great solution to a common problem. Now all I have to do is find a used collector with a 24" impeller.:) For now, I am stuck with the snow shovel. But you have givin me food for thought.

Thanks for the pics,

Dave

Re: Very cool Peter!!

Peter Teubel

>FYI: I bought the complete unit minus the motor for $45.

Your killing me here :)

Dave Peebles Lyons, Ohio!

>I have been the lucky recipient of those kinds of deals on occasion. But my Dad was the master. He only had one rule.... Always keep your eyes open, and always have a blank check in your wallet.

He could buy and sell with the best. And I don't remember him ever loosing money on any deal.

Dave