I purchased a set of the Incra CleanSweep rings for my Incra/JessEm Mast-R-Lift II router lift. These have special cutouts to improve dust collection. I am very happy with the results. The first picture shows the 1" clean sweep ring in place.
I did a simple test - routing a 3/8" x 1/2" rabbet in some pine. I have the lift on a shop built table with under table DC. With the stock rings in place DC is fairly good though when pushing the work piece into the bit, a plume of dust and chips shoots forward. Most of this plume escapes dust collection and a lot of it goes completely off the table. With the clean sweep rings, the plume is mostly pulled into the openings. In the second picture, I gathered all the chips/dust from the test with the stock ring. The third picture is from the test with the clean sweep ring. All that was left were some larger chips. Amazingly good.
Note that I don't have a dust port in the fence. With the clean sweep rings, I really don't need one and am very happy not to have to monkey with a fence mounted hose.
Overall, I am very happy with these rings.
And a great customer support story here too. Several of the rings didn't seat properly in the lift plate but Incra very quickly responded that they are sending replacements. I continue to be a big Incra fan.
I did a simple test - routing a 3/8" x 1/2" rabbet in some pine. I have the lift on a shop built table with under table DC. With the stock rings in place DC is fairly good though when pushing the work piece into the bit, a plume of dust and chips shoots forward. Most of this plume escapes dust collection and a lot of it goes completely off the table. With the clean sweep rings, the plume is mostly pulled into the openings. In the second picture, I gathered all the chips/dust from the test with the stock ring. The third picture is from the test with the clean sweep ring. All that was left were some larger chips. Amazingly good.
Note that I don't have a dust port in the fence. With the clean sweep rings, I really don't need one and am very happy not to have to monkey with a fence mounted hose.
Overall, I am very happy with these rings.
And a great customer support story here too. Several of the rings didn't seat properly in the lift plate but Incra very quickly responded that they are sending replacements. I continue to be a big Incra fan.