This will actually impact my shopping list so here goes nothing...
And before it gets brought up, yes I am going with 5", already started the investment and am in process, and no it isn't idea, but neither is running a 2HP dust collector, or having my shop in an attached garage my wife can stow stuff in. It is a compromise I made given all the information I had available at the time. I feel I made the best choice for m situation. But now I need to determine just how far to take the 5" main.
As you may know, my DC is in the back right corner nook of my home workshop. This nook eventually will go away with a master bath remodel, but for now, it stays put. I come out with a 5" 45, a run of 5", another 45 at the wall. My plan is to go up with a 5x5x5 wye and a 45 up the wall, 2 45s accross to the ceiling. But lets look at the main branch before we went up the wall first.
My plan here is to run a 5" main all the way across, mid height along the wall, about 36" above the floor. 5x5x5 wyes aiming down into a 5" blast gate, then 5x4x4 splitter at the band saw, a 4x2.5x2.5 Y branch to the bottom of the saw, and a 4" with some sort of magnet rig as a pickup on the table, particularly when reswaing it pukes a ton of sawdust on the table that gets missed below the table.
Down 5' on the main and another 5x5x5 branch wye, and a 5x4 reducer, 4" blast gate and hose connection. This connection can be used as 4" or funnel reduced to 2.5". This will be right where the flip top stands will park. Down another 5' and another 5x5x5 branch wye. This time I need to figure out the lathe dust collection hood. I have been using a 4" blast gate, and epoxied on rare earth magnets to a 4x10 register box opened up in a surround fashion. VERY effective for what I use it for. WORTHLESS for anything coming off a chisel, but the way I sand, perfect.
Another 3' or so down and I need to do 2 45s to make a 90 degree turn. Here is where I kind of HAVE to use more hose than I want, and turn to the drill press. OR... Roll the drill press where the flip top stands pickup can be used, In that case leave out the lathe branch wye and just connect at a pair of 45s. This might be more sensible and help me keep the run shorter...
Okay back up to the wall / ceiling.
Once I am at the ceiling above the first branch wye.and made my 90 to the ceiling, another branch wye 5x5x5 to make a run to the table saw / workbench, and the miter saw / mortiser bench.
This is where I get twitchy.
Do I make my drops using 5", and neck down to 4" or split to 5x4x4 immediately before the tool or should I transition to 4" at the bend from the ceiling?
If I make the transition at the ceiling, I can use more of what I already have, and be necked down so I get greater vacuum, but less airflow.
As a reminder these connections are going to be...
#1. Router table. I need connections top and bottom. Top is 4", bottom can be 2.5",
#2. Workbench. I like having a 4" hose available above the bench, that I can neck down to 2.5"
#3. Table saw. 4" shark guard upper, 2.5" blade shroud lower. Don't care as long as air is flowing and working on the belly pan. I is presently fitted with a 4" port and fed off of a 4x4x2.5" branch wye after the blast gate.
And before it gets brought up, yes I am going with 5", already started the investment and am in process, and no it isn't idea, but neither is running a 2HP dust collector, or having my shop in an attached garage my wife can stow stuff in. It is a compromise I made given all the information I had available at the time. I feel I made the best choice for m situation. But now I need to determine just how far to take the 5" main.
As you may know, my DC is in the back right corner nook of my home workshop. This nook eventually will go away with a master bath remodel, but for now, it stays put. I come out with a 5" 45, a run of 5", another 45 at the wall. My plan is to go up with a 5x5x5 wye and a 45 up the wall, 2 45s accross to the ceiling. But lets look at the main branch before we went up the wall first.
My plan here is to run a 5" main all the way across, mid height along the wall, about 36" above the floor. 5x5x5 wyes aiming down into a 5" blast gate, then 5x4x4 splitter at the band saw, a 4x2.5x2.5 Y branch to the bottom of the saw, and a 4" with some sort of magnet rig as a pickup on the table, particularly when reswaing it pukes a ton of sawdust on the table that gets missed below the table.
Down 5' on the main and another 5x5x5 branch wye, and a 5x4 reducer, 4" blast gate and hose connection. This connection can be used as 4" or funnel reduced to 2.5". This will be right where the flip top stands will park. Down another 5' and another 5x5x5 branch wye. This time I need to figure out the lathe dust collection hood. I have been using a 4" blast gate, and epoxied on rare earth magnets to a 4x10 register box opened up in a surround fashion. VERY effective for what I use it for. WORTHLESS for anything coming off a chisel, but the way I sand, perfect.
Another 3' or so down and I need to do 2 45s to make a 90 degree turn. Here is where I kind of HAVE to use more hose than I want, and turn to the drill press. OR... Roll the drill press where the flip top stands pickup can be used, In that case leave out the lathe branch wye and just connect at a pair of 45s. This might be more sensible and help me keep the run shorter...
Okay back up to the wall / ceiling.
Once I am at the ceiling above the first branch wye.and made my 90 to the ceiling, another branch wye 5x5x5 to make a run to the table saw / workbench, and the miter saw / mortiser bench.
This is where I get twitchy.
Do I make my drops using 5", and neck down to 4" or split to 5x4x4 immediately before the tool or should I transition to 4" at the bend from the ceiling?
If I make the transition at the ceiling, I can use more of what I already have, and be necked down so I get greater vacuum, but less airflow.
As a reminder these connections are going to be...
#1. Router table. I need connections top and bottom. Top is 4", bottom can be 2.5",
#2. Workbench. I like having a 4" hose available above the bench, that I can neck down to 2.5"
#3. Table saw. 4" shark guard upper, 2.5" blade shroud lower. Don't care as long as air is flowing and working on the belly pan. I is presently fitted with a 4" port and fed off of a 4x4x2.5" branch wye after the blast gate.
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