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Dust Collection Hose and Fittings Assembly

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Forum topic by JK0702 posted 06-10-2016 03:15 AM 1287 views 0 times favorited 18 replies Add to Favorites Watch
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JK0702

131 posts in 1596 days


06-10-2016 03:15 AM

Does anyone have a trick or technique for assembling dust collection hose to fittings that are a very tight fit? It seems like everything I get from Rockler is the same diameter. The hose to blast gates are too tight of a fit, the hose to coupling (to splice two hose lengths together) is too tight of a fit, etc. It seems like the hose should be a touch bigger and these thing should go together easier. I struggle to get the hose pushed over the blast gates, dust ports on my DC, and over the coupling. Then it’s a struggle to keep them on while fastening the clamps. I thought about heating the hose slightly with a hair dryer or using baby power to slip the pieces together, but I thought I’d tap you guys as a resource first. Any ideas?

I’m using 4” hose, 4” couplings and 4” metal blast gates from Rockler. I have a Delta 50-850 DC and I also have the quick release fittings from Rockler on all of my machines and they all fit together very well.

Thanks

-- John - Huntington Beach, CA --- Growth occurs when we get out of our comfort zone.


18 replies so far

View MadMark's profile

MadMark

978 posts in 918 days


#1 posted 06-10-2016 03:36 AM

Fittings only connect to couplers or hose. Both hose & fittings are measured by ID, not OD! I had to X cut the couples and use SS band clamps. Some fittings I was unable to figure out and are connected by metal tape. It is not you, it is very confusing, and I wound up with an assortment of ‘extra’ bits. It took me 9 mo to get it finalized and drawing right.

Black plastic Rocker duct work, Penn State metal duct work & PVC do NOT easily interconnect as they all have different wall thicknesses for the same nominal ID.

M

-- Madmark - Madmark2150@yahoo.com Wiretreefarm.com

View JK0702's profile

JK0702

131 posts in 1596 days


#2 posted 06-10-2016 12:29 PM

Thanks, Mark for your input. The sad thing is that I listen to the guys at Rockler, buy what they suggest, do what they say to do, and it is still so difficult to put it together. I have noticed that my older black hose fits together with all the other parts very easily. It’s the new clear hose that seems so much smaller in diameter. Yet, both claim to be 4”. Also, this new clear hose is packed in 3’ lengths but says it’ll stretch to 10’, well currently it’s more like 6-8’. Maybe over time it will get to 10’. I have noticed the thicker walls and the ID being a difference, and that adds to the problem with the couplers and blast gates.

-- John - Huntington Beach, CA --- Growth occurs when we get out of our comfort zone.

View hairy's profile

hairy

2384 posts in 2997 days


#3 posted 06-10-2016 12:35 PM

I have used dishwashing detergent as a lubricant to do that.

-- stay thirsty my friends...

View AZWoody's profile

AZWoody

697 posts in 689 days


#4 posted 06-10-2016 01:25 PM



I have used dishwashing detergent as a lubricant to do that.

- hairy

Yup, dishwashing detergent or a silicon based lube helps a lot when putting those together.

View brtech's profile

brtech

903 posts in 2387 days


#5 posted 06-10-2016 02:25 PM

I have this problem with my SawStop and the Rockler Dust Right system. My SS has the overarm dust collection hose, and they supply a Wye adapter that goes on the port on the saw. Then I have the DustRight adapter on that, and then the quick connect handle on that. The joint between the Wye and the saw’s port is too loose, and it often comes off when I remove the hose with the handle. I’ve considered drilling into it to fasten it to the SS port, but I could put a couple cuts and use a hose clamp. The rest of the ports seem to work okay for me.

View USAwoodArt's profile

USAwoodArt

243 posts in 407 days


#6 posted 06-10-2016 03:17 PM

It would be great if all manufactures of dust collection related equipment had a universal standard…but unfortunately they all seem to design their products to work primarily with just their own products with hopes you will buy everything from them. 4” should always be 4” regardless of who makes the fittings.
I also have used liquid soap to help struggling fittings on to other fittings that all claim to be the same size.

-- Wood for projects is like a good Fart..."better when you cut it yourself"

View fuzzface's profile

fuzzface

62 posts in 1335 days


#7 posted 06-10-2016 05:29 PM

I had the same problem a couple of years ago while installing my DC system. I used a heat gun to loosen the flex hose, and it worked like a charm.

-- I'm a LumberJock and I'm OK.............. I sleep all night and I work all day !!

View JK0702's profile

JK0702

131 posts in 1596 days


#8 posted 06-10-2016 06:22 PM

Thanks, guys. I’m going to give the dish soap a try. Heat gun if that doesn’t do the trick. It’s good to know I’m not the only one that has had issues with this.

-- John - Huntington Beach, CA --- Growth occurs when we get out of our comfort zone.

View pintodeluxe's profile

pintodeluxe

4858 posts in 2278 days


#9 posted 06-10-2016 10:16 PM

I learned a trick back in my first job assembling bikes at a hardware store years ago. We used a squirt of Simple Green to install the hand grips on the bikes. They would slide right on the handlebars, and once dry they would hold tight.

Try Simple Green.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View JK0702's profile

JK0702

131 posts in 1596 days


#10 posted 06-10-2016 10:43 PM

Willie, thanks for the tip, I’ll remember that for down the road. The dish soap worked great. I got everything put together in about 20 minutes.

-- John - Huntington Beach, CA --- Growth occurs when we get out of our comfort zone.

View lrushing's profile

lrushing

12 posts in 304 days


#11 posted 06-11-2016 11:56 PM

Buy your hose from Penn State Ind. It is inside diameter. I have a shop full of DC fittings that I bought through Rockler and Woodcraft that does not fit anything. I learned the hard way about trying to build a DC system using stuff from Rockler and Woodcraft.

-- Larry, Georgia

View JBrow's profile

JBrow

818 posts in 385 days


#12 posted 06-13-2016 12:38 AM

JK0702,

Another option is a Quick Connect fitting that slips into the dust collection hose and the opposite slightly bell shaped end fits onto the machine port. However the bell shaped end can slip off a machine port. I suspect a couple of sheet metal screws could keep this from happening. There is also a splice fitting designed to fit inside two ends of flex hose. Perhaps this fitting would slip inside a dust collecting fitting. Grizzly also offers a wide assortment of dust collection fittings, a few of which might help out – if the dish soap fails.

Quick Connect fitting…
http://www.grizzly.com/products/4-Quick-Disconnect-Fitting/W1038?utmcampaign=zPage

Hose splice fitting…
http://www.grizzly.com/products/4-Splice/W1019?utm
campaign=zPage

I have not applied heat to a flex hose. I am not sure how much expansion one could achieve if the hose is reinforced with metal wire. I have used heat to soften and re-shape PVC pipe for my dust collection system. I ended up making an inside and outside set of MDF dies to get even shrinkage of the PVC. I have not tired this method with ABS fittings, which I think is the material used to make typical black ABS fittings.

View JK0702's profile

JK0702

131 posts in 1596 days


#13 posted 06-13-2016 01:51 AM

JBrow,
I have both the Quick Connect system and the splice fittings. Both were a huge problem until I used the dish soap. I currently have my problem solved, but I’m already considering a couple of modification. I expect more problems as I proceed, but the dish soap has been a huge help.
John

-- John - Huntington Beach, CA --- Growth occurs when we get out of our comfort zone.

View Kelly's profile

Kelly

1113 posts in 2409 days


#14 posted 06-13-2016 03:20 AM

I, essentially, have tubs full of fitting because you don’t know what you’ll need. Today, I decided I didn’t want to get covered in shaving from my biscuit machine, so cut up a multi-fit end to tie into my little Dust Deputy.

Over on my three horse, I use black tubing as couplers for my upper and lower on the table saw, or to join two pipes. For that reason, I keep pieces of green, black and while four inch pipe for projects.

View JK0702's profile

JK0702

131 posts in 1596 days


#15 posted 06-13-2016 05:45 PM

Kelly,
I tried fitting HD black 4” tubing and white 4” tubing, but both were much too big in diameter. I need to make a 90* turn at the back of my T/S and run it tight to the back wall of the saw. I’m having a hard time making it happen. If I use Rockler’s 90, I have to use a coupler also. Now it protrudes too far out from the saw and hits my out feed table. I just have to keep trying different things, I guess.

-- John - Huntington Beach, CA --- Growth occurs when we get out of our comfort zone.

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