J. Phil Thien's Projects

Ok great, thanks again for all your help Phil...

Hey Phil, I added about 2-3" of fines to the lower bag in this test at one time. I grabbed the fines with one had at a time, taken from my collection container from my
festool CT22. I added them very slowly about the same rate as they would come off my TS.

Of course my CT22 container is what I use for shop clean up.

I have a lot of ripping, jointing, planning coming up here. So I will post back to show how that works out.

I am still very impressed by the almost no scubbing action in the lower bag and how the chips/dust just came out in a stream to the bottom of the bag...

Hey Phil, Thanks again for all your help with my DC.

I added a chimney yesterday, or should I say attempted too. I only found one pic to give me a direction and read what I could about placement and size.

The hole diameter in my cone is 9.5". The two HVAC flanges I used were 10" flanges cut down to fit the opening. The chimney sticks up 3" into the cannister filter and down 3" towards the baffle. I did use foil tape to hold in place to see how this would work. Space between the chimney and the baffle is a tad over 1".

I assemble the DC back together and starting slowing adding dust to the running system. It was mostly fines from my CT22. I added the fines about the same rate it would come from my TS.

The scubbing was almost none existent in the lower bag. The dust dropped into the bag as most have said here like it came out of a hose. The pressure in the bag was high. I added about 2-3" of fines. Shut down, removed the cannister. You can see in the pics what fines made it over the chimney. The cannister/filter had a good amount of fines present.

So I am wondering if my baffle being 3/4" melamine could be causing the fines to go into the filter, or maybe the hole in the cone of this DC is way to large. I have to admit, the DC was really pulling a lot of air into the unit after adding this chimney, did seem like more than before.

Thanks again for all your help...

Perfect, thank you again...

I think I found the answer on the chimney:

http://www.jpthien.com/smf/index.php?topic=661.0

Thank you Phil, I am trying to find a picture of a chimney on your site.

Do you think the inside opening of the cone on my DC being 9 1/2" across is too large? So a chimney is a must?

Thank you again for your help...

I just tried the wok lid idea last night on my 2 hp Wilke DC with top canister. I will see if I can add some pics later on.

I purchased the 14" wok lid from Amazon for $12.00. I pretty much did what the link in that toolguy1000 posted. Except I only used one bolt and spacer in the same hole that was used for the handle, I just had to enlarge the hole a bit to fit the bolt. I did try the 1 1/2" spacer. Reassembled everything and run the DC for a few minutes and added about 5 or 6 large double handfuls of fines collected from the old DC lower bag. I took off the JDS top cannister, I did clean the filter before reassembly. The filter and the top portion of the DC had a ton of fines in it. I almost choked removing the cannister due to all the fines in the filter and at the base of the filter.

I decided to remove the 1 1/2" spacer and move the wok lid closer to the large hole in the DC. I did read on one thread here about Phil saying the hole was too large on some DC's. I used a smaller bolt, 1" and no spacer. Reassembled the unit and proceeded to add some more fines and small chips. I let the unit suck up another 6 or 7 double handfuls on dust, let the unit wind down, I did not touch the filter paddles. This time the filter was spotless and zero dust on the top of wok lid. I then put the filter back in place and this time kept dumping fines and small chips into the running system to fill the bottom bag about 10" or so. I took off the filter for the last time, and low and behold, no fines or chips in the filter, nothing below the filter either. I have to say the filter was a bit cleaner then when I cleaned it myself.

Now I must say the tornandic activity in the lower bag was a lot, I know this is not a good thing, but we will see how this works in the next week or so as I fill the lower bags usually once a week.

I did make one of Phil's baffles and installed it on this unit, but I am sure I did not design it correctly since my cannister was still getting a lot of fines in it. I think the hole is too large on this unit and I did use 3/4" plywood for the baffle.  I am sure my baffle placement was incorrect. I will make a new baffle using hardboard and maybe try a smaller slot.

I want to thank Phil and all the other members for their wisdom on DC in this forum. Even after all these years in this business, never to old to learn...

Phil, My DC model is pretty old from Wilke, 2 hp:

19 1/8" for the inner lower dia.

9 1/4" for the dia of the cone...