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Sean Troy
12-13-2007, 9:58 AM
Hello all, I'm going to add a 4" DC port to my band saw and was wondering if I should also use the existing smaller port already there in conjunction with the 4" or cap off the smaller one? Thanks, Sean

Jim Becker
12-13-2007, 10:02 AM
Can't hurt if you have enough air flow available to cover both ports. The OEM port, stingy as it may be sometimes, is located a a "point of creation", so even if it only catches some dust, that's better than none, even when you are adding a larger collection point elsewhere on the saw.

Tyler Howell
12-13-2007, 10:22 AM
I put a "Y" in my DC hose with a reducer and used them both.
Not pretty but it works.
TJH

Jimmy Williams
12-13-2007, 2:11 PM
Not to hijack this thread but this is something that I have been wanting to do as well. Assuming that I continue use the one that came on the bandsaw in conjunction with a 4", where is the ideal location to add the 4" port?

Sean Troy
12-13-2007, 3:11 PM
Not to hijack this thread but this is something that I have been wanting to do as well. Assuming that I continue use the one that came on the bandsaw in conjunction with a 4", where is the ideal location to add the 4" port?


I have the Jet 14" and don't have any choice but the front.

Thom Sturgill
12-13-2007, 3:17 PM
Not to hijack this thread but this is something that I have been wanting to do as well. Assuming that I continue use the one that came on the bandsaw in conjunction with a 4", where is the ideal location to add the 4" port?

Assuming whoever designed the Craftsman Pro knew what they were doing, on the back near the bottom. The saw also has a brush that keeps some trash from going up the blade to the upper wheel and cleans the lower wheel. I don't know how common these are as I haven't opened many other saws. :confused:

Steve Sawyer
12-13-2007, 3:43 PM
I too have the Craftsman pro, and the 4" port is on the bottom of the lower wheel housing, on the "back" (away from the operator) and immediately below the guides - right where the dust would tend to collect inside the cabinet. If you have a saw whose lower wheel cover is rounded on the bottom the port should go at the lowest point - again, where the dust is inclined to collect.

Note that the Craftsman Pro has two ports - the 4" port on the back, and a 2 1/2" port right below the lower guide bearings.

Like another poster above, I used a 4"x4"x2 1/2" wye. Plugged the wye directly into the 4" port and ran a short piece of 2 1/2" flex hose to the 2 1/2" port. Seems to get all but just a sprinkling of sawdust.

Jimmy Williams
12-13-2007, 6:27 PM
Thanks for the replies.
I just got home and checked my bandsaw (Hitachi CB13F) and the back is cast iron with a sheetmetal lower wheel housing cover. I am not going to attempt making a 4" hole in the cast iron so I guess I'll have to put the 4" in the door.
Sounds like using a 90 degree elbow on the door,to get the hose going towards the left hand side of the saw, followed by a 4"x4"x2 1/2" wye should work.

Thanks for the advice.

Alan Trout
12-13-2007, 6:35 PM
I just put a 4" hole in the bottom of the lower door of my Jet 14" band saw. I too had the useless 2 inch connection by the lower guides. I tried mine with a Y connected to the 2 inch and just with the 4" connected. With just the 4" connected the dust collection works just as well so I took the Y off.

Good Luck

Alan

Joseph N. Myers
12-13-2007, 8:33 PM
I have a 14" Jet without any DC and hence tons of dust. And I'm really clueless as to what to do!

So any additional information and pictures would really be helpful. In particular, how and where to cut to hole, size of hole, what part to put in the hole for the hose, etc.

TIA, Joe

John Thompson
12-13-2007, 10:22 PM
If I were going to put another port on my BS and I don't intend too as my current set-up is quite sufficient, I would simply look in the case and see where the dust accumulates most. And I would be willing to bet that is the lower rear corner.

So... I would cut thhe new port in the bottom rear corner if that indeed is where the most accumlates.

Sarge..

Alan Trout
12-13-2007, 11:07 PM
Here are a couple of pics of the dust chute that I installed on my 14" Jet. The DC on it has worked very well. A little is dust is left on the lower guides but that is about it. I hope this helps.

Good Luck

Alan

Wes Bischel
12-13-2007, 11:14 PM
Sean,
I have a 4" port on the bottom door as well. I used a toilet closet flange mounted on the door and a 90 degree elbow slightly modified to allow it to rotate in the flange so the hose can attach from either side of the saw. It works surprisingly well.

Wes

Bill Pentz
12-13-2007, 11:55 PM
Hello all, I'm going to add a 4" DC port to my band saw and was wondering if I should also use the existing smaller port already there in conjunction with the 4" or cap off the smaller one? Thanks, Sean

Air at typical dust collection pressures is more like water and will barely compress at all. Any small pipe, duct or port kills our needed airflow. The standard 1.25” port that comes with the Delta 14” band saws needs a good powerful shop vacuum to generate the more than ten times higher pressures than a typical dust collector needed for good band saw dust collection. My 1400 CFM cyclone will not move 50 CFM if I try to reduce enough to attach directly to that port.

I personally use the Delta port upgrade similar to that pictured in the SMC thread (http://www.sawmillcreek.org/showthread.php?t=5064). A better solution is to use that upgraded adapter plus a wye connection that allows you to also collect from above the blade. That makes it a lot easier to see your cutting line. A blade following brush is also a big help if you don’t already have one built into your saw.

Sean Troy
12-14-2007, 8:40 AM
Air at typical dust collection pressures is more like water and will barely compress at all. Any small pipe, duct or port kills our needed airflow. The standard 1.25” port that comes with the Delta 14” band saws needs a good powerful shop vacuum to generate the more than ten times higher pressures than a typical dust collector needed for good band saw dust collection. My 1400 CFM cyclone will not move 50 CFM if I try to reduce enough to attach directly to that port.

I personally use the Delta port upgrade similar to that pictured in the SMC thread (http://www.sawmillcreek.org/showthread.php?t=5064). A better solution is to use that upgraded adapter plus a wye connection that allows you to also collect from above the blade. That makes it a lot easier to see your cutting line. A blade following brush is also a big help if you don’t already have one built into your saw.

Good info, thanks Bill. I do cut some green wood with the saw, will the brush still work ok with that application?

Bill Pentz
12-14-2007, 11:51 AM
Good info, thanks Bill. I do cut some green wood with the saw, will the brush still work ok with that application?

Sean,

The brush will work if the wood is dry, but the wetter and more sap filled the more will clog in the brush and get to your band saw tires. I cut very little green wood, but I suspect there are turners on this forum that do and could share how well their brushes work when cutting green wood.

Todd Hyman
12-14-2007, 1:23 PM
Thanks for the replies.
I just got home and checked my bandsaw (Hitachi CB13F) and the back is cast iron with a sheetmetal lower wheel housing cover. I am not going to attempt making a 4" hole in the cast iron so I guess I'll have to put the 4" in the door.
Sounds like using a 90 degree elbow on the door,to get the hose going towards the left hand side of the saw, followed by a 4"x4"x2 1/2" wye should work.

Thanks for the advice.

Jimmy, I have that bandsaw as well. How do you like yours? I added a 2 1/2" port to the lower door in the middle and used a y fitting to get to the existing port. It works quite well. I have the hose coming from the rear out of my way.

Kevin Groenke
12-14-2007, 7:47 PM
I modified a DC adapter that I saw in a mag a few years back for our 14" bandsaws (delta).

This adapter fits directly beneath the table and pretty much surrounds the guides. The adapter rides very close to the lower wheel, so it captures almost all of the dust before it has a chance to get trapped between the blade and the tire. The teardrop shape allows full tilting of the table. There is enough volume in the adapter that is seems not to create too much restriction in airflow, obviously it introduces some turbulence, but it doesn't seem to be a problem

The adapter consists of 1/2 ply front and back held together with sheet metal screwed into the edges of the plywood. A 4" hose attaches to the back of the adapter so it doesn't get in your way.

The adapter attaches to the saw via a single 1/4" thumbscrew so it's easily changed for blade changes etc. The thumbscrew screws into a tapped steel plate which was added to the casting below the tabletop. The edge of lower door does need to be cut away to make way for the adapter.

g'luck
kg

Jeff Miller
12-15-2007, 12:01 PM
Here's how mines hooked up.


http://i44.photobucket.com/albums/f32/woodfarmer/shop/shop022.jpg





JEFF:D

Jack Hogoboom
12-18-2007, 5:34 AM
Dumb question, but how do you cut the hole in the bottom door to make the opening?

Jack

Alan Trout
12-18-2007, 8:18 AM
I did mine with a 4" hole saw in the drill press.


Good Luck

Alan