I’m going to give credit to NBeener for this one as he was the first person that I knew who done this. I hadn’t even heard of the mod until he mentioned one day in a thread. So thanks Neil!
This mod is silly simple although you will need basic metal cutting tools. This is an excellent time to clean and inspect your collector if it’s not a brand new one.
DISCLAIMER – The dimensions given are the dimensions that I used for my modification. Check yours! Yours could very easily be different than mine!
Screwdriver for taking off the old hose
Something to cut sheet metal, I used an angle grinder
a File for de-buring the metal
A pair of Gloves
5” Stove Pipe. I got mine at our local farm / hardware store. I suspect that just about anyplace that sells wood stoves or the likes will have stove pipe.
(2) Adjustable 5” fittings
(1) 24” x 5” section of pipe
Foil Tape. Don’t cheap out on the foil tape, no substitutions here.
Step 1) Unplug the collector. and remove the discharge hose. This is a great time to use the shop vac to clean up.
Step 2) Cut a 3” length piece of pipe off of the the FEMALE end. The female end is the end that doesn’t have the crimps going around it.
This piece will be used to connect one of the adjustable fittings to the round cyclone type thing. I have no idea what it’s called. It’s the piece that the filter and bag are attached to. How’s that? The Male end of the adjustable fitting won’t fit into the piece that’s sticking out so I needed an adapter.
Step 3) Place one adjustable fitting on the discharge of the blower, male end up
Step 3.1)Place the other adjustable fitting onto the cyclonic do-dad using the 3” piece of pipe that we cut, Male end up. (I used a couple small pieces of tape to hold the 3” pipe and fitting in place.)
Step 4) Adjust the two fitting until they “line up.” This can be challenging but stick with it. I assure you, there is a place where both fitting will line up and you can get a piece of pipe between them.
Step 5) Measure the distance between the fittings. Remember that the pipe is going to slide over one fitting and into another. Make the proper allowances for this! My pipe was 10”.
Step 6) Cut the pipe, file the rough edges and snap it together. WEAR GLOVES! Sheet metal will cut you like a razor blade.
Step 7) Install the pipe between the two fitting, female end will go towards the blower and the male end will go towards the cyclonic do-dad.
Step 8) Tape ALL of the joints. You’ll know if you missed any after you use your collector. You’ll see the telltale traces of dust coming out where you missed.
That’s it. You can probably do this mod in about 30-60 minutes. You’ll spend twice the time putting the tape on that you will doing anything else.
Some other “Mods” that you can do while you’re here.
Cut that stupid guard out of the inlet to the blower. I thought that I had already cut mine out only to find that mine was still there and it was plugged! I FINALLY think that I have found the decrease in performance that I have been complaining about the past few months. Now that I think on it, if you’re not using a pre-separator, you may want to leave the stupid thing in there. Just know that it’s going to collect shavings and all sorts of detritus!
Tape EVERYWHERE! You can see, again thanks to Niel, that I have tape around the blower. This was already done on mine but it’s something that you can do if you haven’t already.
I noticed that my collector is leaking around the motor and the blower housing. Unfortunately I don’t have any caulk on hand or I would caulk that joint.
-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135