REASONS FOR MAKING THE CONVERSION:
I have a very small shop and I couldn’t move the dust collection system (dcs) where it would be out of the way. The cloth bag filter sat so high that it would hit duct work in my shop. I also didn’t like emptying the plastic debris bag. It was difficult to remove and once removed debris from up in the cloth bag would fall to the floor.
I searched out all of the information I could find on making dcs conversions. One conversion that intrigued me was from Fong the Tool Tutor, and his You Tube video is included here. You will see that I incorporated many of his ideas into my build. I took his advice on the size of the barrel and to that I added a Thien baffle. In this blog I will give you a detailed description of how i put my system together and hopefully it will help you in your conversion.
MY CONVERSION PLAN
- Remove the cloth bag filter and replace it with a Wynn Environmental filter. This will give me an additional 12” of headspace.
- Add a chip separator to keep the vast majority of debris in this collector and keep it from hitting the filter. And, minimize the times I have to empty the plastic debris bag.
- Add a Thien baffle to the chip separator to make it as efficient as possible.
MODIFY THE CART
First I removed the cloth bag filter and the plastic debris bag. I then set about to modify the cart so it could accommodate the chip separator. I started by screwing on a piece of angle iron to the middle support of the cart.
I then made a shelf of melamine coated hardboard and screwed that to the new bracket and the outside edge of the cart.
You do need some way to seal the filter to the dcs. I purchased the ETG-55 gasket through Wynn Environmental (http://wynnenv.com) and it slid in place easily after I trimmed it to size with a tin snips, as they had instructed. I’ve read where others have used foam insulation to make a seal, but knowing how well this gasket fits I’d strongly recommend buying it.
I then mounted the filter (#35A274BLOL) onto the dcs and attached it with the provided turnbuckles. Instructions can be found on the Wynn site (http://wynnenv.com/delta-50-760/), with thanks to David T.
For the separator, I chose a 15 gallon plastic barrel, as suggested by Fong, the Tool Tutor, on a You Tube video
I purchased the drum (#4319T665) through McMaster-Carr (http://www.mcmaster.com). The size is perfect for this cart!
I also purchased the Rockler (http://www.rockler.com) Dust Rite Components (#34367) and cut off the elbow on one of the components. These components simply screw into each other, there is no need to drill holes for individual mounting screws.
The Dust Rite kit includes two self-adhesive discs for use as templates when cutting holes into the drum cover. I wanted to mount the elbow as close to the edge of the barrel as possible and the other component as close to the center as possible. Be sure to take into consideration the shoulders on these components and the rounded edge of the barrel. You get one chance to cut this right!
I adhered the paper templates and made my cuts with a Dremel (http://www.dremelnewsroom.com) rotary tool and spiral bit. This cut through the lid easily and gave me fairly smooth opening.
Then just screw on your Dust Rite components.
MAKING THE CONNECTION
The inlet to the dcs is 5” and I needed to connect 4” hose between the barrel and that inlet. I bought a 4” to 5” adaptor (TAW1027) from Rockler, but how to connect the two 5” pieces? I found a connector at my local home improvement store. It’s a PlumbQwik P3000-44. I took out the rubber insert and the stainless steel connector then fit perfectly between the two 5” parts. And, the straps with worm-screws make for a very secure connection.
I’d never even heard of this until I started doing my research! The idea is to make the chip separator more efficient. The incoming debris rides on an extended portion of this baffle, then drops through an opening and down into the barrel where it can’t escape. For additional information on the Thien baffle check out this site: http://www.jpthien.com/cy.htm Here’s how I constructed mine:
I used 1/4” hardboard and cut a disc the size of the inside of the barrel. I then cut the baffle to create an opening for the debris to fall through. You will cut 240 of the 360 degrees of the disc (see photo below). The width of the cut is 1 1/8th”. I was able to find this dimension by following the instructions I found in this You Tube video:
I mounted the baffle to the barrel lid with 1/2’’ threaded rod. The most difficult of this build is to have the outlet of the elbow exit at the very beginning of the extended portion of the baffle, while keeping the extended portion of the baffle as close to the inside of the barrel as possible. I put a finishing nail through the center of the baffle so I could lower it into the drum. With the lid on, I reached through the center hole and again grabbed the nail pulling the baffle into position. With my other hand I marked the lid and baffle for the first threaded rod. I found that the first rod should be one holding the extended portion of the baffle in position. This will allow you to orient the baffle with the edge of the elbow and wall of the barrel. The other two supports are then easier to properly position.
THE COMPLETED CONVERSION
The Wynn filter greatly increased the airflow of my dcs and the chip separator works great! The new filter also improves the air quality in my shop as it filters down to 0.5 microns compared to the 1 micron of the bag filter. Total cost of this conversion was around $275. I think it turned out great and I’m very glad I did it!
You can see the separator in action in this video.
-- Jerry, Johnson Creek, WI "If it was meant to be different it would be."