dust collector problem

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Forum topic by sarahss posted 09-14-2011 03:55 PM 1024 views 0 times favorited 10 replies Add to Favorites Watch
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258 posts in 2073 days

09-14-2011 03:55 PM

I’m having a clogging problem with my dc and was hoping for advice. I’m using the HF 1.5 hp dc. I have one line connected to my table saw (with a blast gate) and the other line is connected to a cyclone can that connects to my jointer and planer—there’s a Y connector with a blast gate to close off either the planer or jointer when it’s not in use. The table saw and jointer work fine, but planing about 5 minutes leads to about 10 minutes spent clearing clogged lines. The dc is only about 10 feet from the planer, and is connected with 4” flexible hose. the blast gates are the cheap plastic ones, but seem to be doing the job. I’m taking a very light cut with the planer—about 1/4 turn (I think one full turn is 1/16 inch). It doesn’t matter if the board is 3” wide or the full 15” wide, it clogs and chips get impacted in the planer underneath the dust intake area just downstream from the outfeed roller. I have checked the manual for the planer and we have the chip deflector adjusted properly—we took it off and put it back on to be sure that the gap was right. We did find that the copper line that we used to ground it was hanging up on chips, so I got all the slack out of that so that the copper stays near the wall of the flex hose. Thickness of the board doesn’t seem to be a factor either as far as I can tell. A 1” thick board or 1/2” board does the same thing. There is a sweep of almost 90 degrees where the dust hose leaves the planer and turns to connect to the line, but that seems to be ok—the clogs are happening mostly near the Y connector. Is there some better type of hose that I should consider, or is there some adjustment I can make to my current setup? Any help would be appreciated.

10 replies so far

View Manitario's profile


2393 posts in 2307 days

#1 posted 09-14-2011 04:06 PM

I had similar problems with my Y connector; I eventually took it out and put in a wye which seems to work a bit better. The other thing that I’d recommend is using as much rigid duct in your setup as possible rather than the flex hose, the less flex hose that I used, the better the flow. As well, make sure you don’t have any leaks in your system, eg. connections, blast gates, etc. even small ones will be significant.

-- Sometimes the creative process requires foul language. -- Charles Neil

View shipwright's profile


7096 posts in 2222 days

#2 posted 09-14-2011 05:05 PM

This will sound a bit odd but try it with the blast gate to the jointer open or partly open. Sometimes the “dead air” in the closed off stub of the Y will cause a turbulence that with larger chips, may allow enough interference to start a clog. I have a big under floor system in my Cdn. shop and with some tools the DC works better with the tail end floor sweep open.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

View Sawkerf's profile


1730 posts in 2492 days

#3 posted 09-14-2011 06:56 PM

Is the jointer also connected with 4” flex? If so, how long is the run, and how many turns in it?

Ten feet is pretty far for 4” flex, and if there are sharp turns in the path, you’re killing off your flow pretty quickly. I would try a direct connection between your planer and DC to see if the problem persists. If it goes away, you can;

go to solid, smooth wall duct
shorten the length of the flex duct
eliminate as many turns as possible
if possible, use two 45 deg fittings instead of one 90 deg fitting. direction changes really lower flow rate, and sharp changes are the worst.

-- Adversity doesn't build reveals it.

View sarahss's profile


258 posts in 2073 days

#4 posted 09-14-2011 10:14 PM

jointer is also connected with same flex duct. about 14 feet away from dc. it’s a straight run, so never any clogs or problems there, just with the planer.

View mrg's profile


655 posts in 2423 days

#5 posted 09-14-2011 10:23 PM

Disconnect the jointer and hook the planer up and see if you get the same result. Sounds like the y is the problem.

-- mrg

View sarahss's profile


258 posts in 2073 days

#6 posted 09-14-2011 10:45 PM

@mrg—I feel silly for not thinking of that! I’m gonna give it a shot tonight. If that doesn’t work, I’ll try some of the other suggestions until it works better. thanks. :-)

View crippledcarpenter's profile


22 posts in 1870 days

#7 posted 09-15-2011 03:47 AM

first thing you should do is connect the to the planner and run the collector. check how much air is getting drawn in and where it is drawing from. if it is only pulling from around the cutter head, the air volume is restricted and will not draw for any great lenght through the flexable duct. the y connectors or any other connectors will only add insult to injury. a straight run hard pipe with no turns is better, a small seperator in the duct, right after the jointer would work the best. hope this is helpfull

-- haste makes firewood.

View Mark Shymanski's profile

Mark Shymanski

5300 posts in 3136 days

#8 posted 09-15-2011 04:13 AM

The y connector on my General DC had helpful bars across the openings to prevent large things from hitting the impellers. Hand plane shavings got caught up on those bars when cleaning up the shop and it took me quite a while to clear them out. I know you ae using a power planer but it may be something you want to check. Sometime the simplest thing can escape our notice an be a real pain in the butt.

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

View sarahss's profile


258 posts in 2073 days

#9 posted 09-15-2011 03:26 PM

I took MRG’s advice and tried to connect the flex from the cyclone directly to the planer, but the line clogged again. I’m gonna try CC’s advice and see how much air is going in.

Mark—impeller looks good—clog is between cyclone and planer, so not even making it that far.

we tried the suggestion by shipwright to slightly open the gate for the jointer, but no dice.

when it’s clear, the flex that is connected to the planer seems to have good suction—you can sweep from the floor right into it and it pulls it up. the clog keeps happening about 4 feet from the planer where we replaced the y connector last night with a straight connection. We have a flex line going from the cyclone to where we had a Y connector for the planer and jointer—now we have a straight connector there that’s connected to another (4 ft) piece of flex that goes to the planer. we moved the planer a bit to take out the bend that was in the flex going from the planer to the straight connector. The hangup seems to be at the connector. I’m not sure of any other way to connect 2 pieces of equipment other than a y connector and short lines with blast gates coming off them. I might try to hook the TS and jointer up with the y connector since they seem to play nice and put the planer on a dedicated line to the cyclone with no breaks in the line. I that doesn’t work, I’ll probably have to spring for rigid line….

rob—what type of connector did you replace your Y with? I’ve never heard of wye—can you tell me more?

View shipwright's profile


7096 posts in 2222 days

#10 posted 09-15-2011 04:33 PM

In my AZ shop I have a HF dust collector and I just have a single flex hose on it that I can quickly move from tool to tool. No connectors, no Y, no blast gates involved. It works on all tools and never plugs. Sometimes the KISS idea turns out to be a good one. You can of course upgrade to a canister filter and about double the air flow very easily.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

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