|
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
|
With good planning the nordfab has the flexibility you’ll need. Don’t cheat yourself, do it right the first time. You’ll never look up at the nordfab and say gee I wish I had some pieces of junk in my lines.
Bill Belanger?
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
|
Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary.
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
|
Right. You plan on the long runs where you can use the slip adapters
Bill
Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary.
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
--
|
I assume you are running the main branch down the middle at the peak of the ceiling? Standard Y’s should get the branch running down the slope of the ceiling, it’s when you want to come off the slop and have a vertical run of pipe that the issue comes in, correct? Seems like a combination of two 45’s or 90’s at that point will get you any angle you want without resorting to custom fittings. I use spiral pipe and long sweep fittings, and have been known to cut one where I need to get whatever angle I want, then you rivet the short Nordfab rolled edge piece so you can clamp it to your other parts.
I have a lot of Nordfab “joiner” pieces adapted to my spiral pipe to act like quick changes.
toggle quoted message
Show quoted text
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
|
I am going to do a quick sketchup.? It’s not like that, the way it will be laid out.? Because of overhead doors and the footprint of the shop the collector
is on one side next to a 9 ft wall and I need to run the duct up the vault to the ridge.? Once there I can use standard parts.? The roof plane ?is 108.4 degrees to the side wall. Once running up the roof plane I need to get back to horizontal below the ridge
beam which extends about 10” below the ceiling.
?
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Show quoted text
From: [email protected] < [email protected]>
On Behalf Of Brian Lamb
Sent: Wednesday, June 10, 2020 3:10 PM
To: [email protected]
Subject: Re: [FOG] Nordfab rigid metal flex duct question #dustcollection
?
I assume you are running the main branch down the middle at the peak of the ceiling? Standard Y’s should get the branch running down the slope of the ceiling, it’s when you want to come off the slop and have a vertical run of pipe that
the issue comes in, correct? Seems like a combination of two 45’s or 90’s at that point will get you any angle you want without resorting to custom fittings. I use spiral pipe and long sweep fittings, and have been known to cut one where I need to get whatever
angle I want, then you rivet the short Nordfab rolled edge piece so you can clamp it to your other parts.
I have a lot of Nordfab “joiner” pieces adapted to my spiral pipe to act like quick changes.
?
?
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
?
|
On Wed, Jun 10, 2020 at 05:10 PM, Brian Lamb wrote:
I assume you are running the main branch down the middle at the peak of the ceiling? Standard Y’s should get the branch running down the slope of the ceiling, it’s when you want to come off the slop and have a vertical run of pipe that the issue comes in, correct? Seems like a combination of two 45’s or 90’s at that point will get you any angle you want without resorting to custom fittings. I use spiral pipe and long sweep fittings, and have been known to cut one where I need to get whatever angle I want, then you rivet the short Nordfab rolled edge piece so you can clamp it to your other parts.
?
I have a lot of Nordfab “joiner” pieces adapted to my spiral pipe to act like quick changes.
?
I would be interested in seeing pictures of what you mention above.
|
This is a drop I have kind of in the middle of the shop. I use it for my bandsaw and my drum sander, so I use a Nordfab rolled flange on all the pieces and I can quick change from one tool to the other by just undoing one clamp and rolling it out of the way. I have some more over by the KF, so I can swap from the overhead dust hose to the shaper hose.
Bandsaw hooked up 
Detail of clamp, I use the knurled knob on the blast gate to hold the clamp ring on the drop so I don’t have to fumble with that while I’m attaching the lower portion.
And swapped over to use the drum sander with separator I built… before the days of Dust Deputy and all of that.
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On Jun 10, 2020, at 5:12 PM, larry@... wrote:
On Wed, Jun 10, 2020 at 05:10 PM, Brian Lamb wrote:
I assume you are running the main branch down the middle at the peak of the ceiling? Standard Y’s should get the branch running down the slope of the ceiling, it’s when you want to come off the slop and have a vertical run of pipe that the issue comes in, correct? Seems like a combination of two 45’s or 90’s at that point will get you any angle you want without resorting to custom fittings. I use spiral pipe and long sweep fittings, and have been known to cut one where I need to get whatever angle I want, then you rivet the short Nordfab rolled edge piece so you can clamp it to your other parts.
?
I have a lot of Nordfab “joiner” pieces adapted to my spiral pipe to act like quick changes.
?
I would be interested in seeing pictures of what you mention above.
|
Nordfab has flexible pipe sections, not just rigid pipe. I think they are a bit more costly than a comparable length of the rigid Nordfab piping. Check their website to see if any of their flexible options will meet your needs.?
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Show quoted text
On Jun 10, 2020, at 2:56 PM, jmkserv@... wrote:
? Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary. My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
--
|
Google “pipe offset” and “rolling offset”, and there are calculators. ?With 45s and 90s you can make any angle you need, just “roll” it.?
That’s a 45 degree fitting that runs at 15ish into the dc. ?If you use 2 or more you can get shorter and fancier, but with dc longer runs between bends is better anyway.
 Sent from a device with less than stellar autocorrect
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On Jun 10, 2020, at 10:00 PM, Alex Bowlds <aabj@...> wrote:
? Nordfab has flexible pipe sections, not just rigid pipe. I think they are a bit more costly than a comparable length of the rigid Nordfab piping. Check their website to see if any of their flexible options will meet your needs.?
Alex On Jun 10, 2020, at 2:56 PM, jmkserv@... wrote:
? Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary. My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
--
|
Agree with Brian G on his points about rolling offsets - I have employed them with my Nordfab kit and they are a bit shorter and a good bit more efficient in terms of loss versus sticking to strictly orthogonal?layouts. Brian L, I love the garbage can separator, it must be the best dust collection bodge I have yet to see. It looks low- loss, suction will keep the lid on tight -- how does it do at separation effectiveness, e.g., what % does it collect? This looks very good for keeping fine dust from the far end where I'm thinking of adding the compression thingy to convert planar shavings into fuel pellets. Cheers Eric
On Wed, Jun 10, 2020 at 10:27 PM Brian Greene < Brian@...> wrote: Google “pipe offset” and “rolling offset”, and there are calculators.? With 45s and 90s you can make any angle you need, just “roll” it.?
That’s a 45 degree fitting that runs at 15ish into the dc.? If you use 2 or more you can get shorter and fancier, but with dc longer runs between bends is better anyway.
 Sent from a device with less than stellar autocorrect On Jun 10, 2020, at 10:00 PM, Alex Bowlds <aabj@...> wrote:
?Nordfab has flexible pipe sections, not just rigid pipe. I think they are a bit more costly than a comparable length of the rigid Nordfab piping. Check their website to see if any of their flexible options will meet your needs.?
Alex ? Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary. My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
--
|
I built the garbage can separator for the drum sander. I welded a rolled flange into the lid, added a cross beam and center bolt sticking down to attach a Cleanstream Hepa filter. Shortened a 5 gallon plastic bucket and pop riveted it to the lid to surround
the filter and create a bit of cyclonic effect and protect the filter from a direct stream of dust. Added the plumbing fitting off to the side to get the cyclone action and it works really well.?
I can run the sander and get through two filter cleanings before the can gets about 1/2 full of powder, then I have to dump it all and start over. Previously this all went into my Oneida 1.5hp cyclone, it's an early model that has the internal filter and it's
a royal pain to clean. So by using this separator, none of the sanding dust ever makes it to that filter.
=============== Brian Lamb blamb11@... Phoenix, AZ ===============
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Show quoted text
Agree with Brian G on his points about rolling offsets - I have employed them with my Nordfab kit and they are a bit shorter and a good bit more efficient in terms of loss versus sticking to strictly orthogonal?layouts.
Brian L, I love the garbage can separator, it must be the best dust collection bodge I have yet to see. It looks low- loss, suction will keep the lid on tight -- how does it do at separation effectiveness, e.g., what % does it collect? This looks very
good for keeping fine dust from the far end where I'm thinking of adding the compression thingy to convert planar shavings into fuel pellets.
Cheers
Eric
On Wed, Jun 10, 2020 at 10:27 PM Brian Greene < Brian@...> wrote:
Google “pipe offset” and “rolling offset”, and there are calculators.? With 45s and 90s you can make any angle you need, just “roll” it.?
That’s a 45 degree fitting that runs at 15ish into the dc.? If you use 2 or more you can get shorter and fancier, but with dc longer runs between bends is better anyway.
Sent from a device with less than stellar autocorrect
On Jun 10, 2020, at 10:00 PM, Alex Bowlds <aabj@...> wrote:
?Nordfab has flexible pipe sections, not just rigid pipe. I think they are a bit more costly than a comparable length of the rigid Nordfab piping. Check their website to see if any of their flexible options will meet your needs.?
Alex
?
Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary.
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
--
-- Brian Lamb blamb11@...? ?
|
Interesting on the garbage can separator I thought it might be a Thein design at first look. Used the Thein design on Shopvacs for good separation years ago. The filter was kept clean vacuuming drywall dust.?
toggle quoted message
Show quoted text
-------- Original message -------- From: Brian Lamb <bklamb1@...> Date: 2020-06-11 11:42 a.m. (GMT-05:00) Subject: Re: [FOG] Nordfab rigid metal flex duct question #dustcollection
I built the garbage can separator for the drum sander. I welded a rolled flange into the lid, added a cross beam and center bolt sticking down to attach a Cleanstream Hepa filter. Shortened a 5 gallon plastic bucket and pop riveted it to the lid to surround
the filter and create a bit of cyclonic effect and protect the filter from a direct stream of dust. Added the plumbing fitting off to the side to get the cyclone action and it works really well.?
I can run the sander and get through two filter cleanings before the can gets about 1/2 full of powder, then I have to dump it all and start over. Previously this all went into my Oneida 1.5hp cyclone, it's an early model that has the internal filter and it's
a royal pain to clean. So by using this separator, none of the sanding dust ever makes it to that filter.
=============== Brian Lamb blamb11@... Phoenix, AZ ===============
Agree with Brian G on his points about rolling offsets - I have employed them with my Nordfab kit and they are a bit shorter and a good bit more efficient in terms of loss versus sticking to strictly orthogonal?layouts.
Brian L, I love the garbage can separator, it must be the best dust collection bodge I have yet to see. It looks low- loss, suction will keep the lid on tight -- how does it do at separation effectiveness, e.g., what % does it collect? This looks very
good for keeping fine dust from the far end where I'm thinking of adding the compression thingy to convert planar shavings into fuel pellets.
Cheers
Eric
On Wed, Jun 10, 2020 at 10:27 PM Brian Greene < Brian@...> wrote:
Google “pipe offset” and “rolling offset”, and there are calculators.? With 45s and 90s you can make any angle you need, just “roll” it.?
That’s a 45 degree fitting that runs at 15ish into the dc.? If you use 2 or more you can get shorter and fancier, but with dc longer runs between bends is better anyway.
Sent from a device with less than stellar autocorrect
On Jun 10, 2020, at 10:00 PM, Alex Bowlds <aabj@...> wrote:
?Nordfab has flexible pipe sections, not just rigid pipe. I think they are a bit more costly than a comparable length of the rigid Nordfab piping. Check their website to see if any of their flexible options will meet your needs.?
Alex
?
Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary.
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
--
|
I built this back in maybe 1997, so it was pre-Thein. I’m sure I could improve on it, but it’s one of those things that you’ll always plan to get around to and rarely do.
toggle quoted message
Show quoted text
Interesting on the garbage can separator I thought it might be a Thein design at first look. Used the Thein design on Shopvacs for good separation years ago. The filter was kept clean vacuuming drywall dust.?
-------- Original message -------- Date: 2020-06-11 11:42 a.m. (GMT-05:00) Subject: Re: [FOG] Nordfab rigid metal flex duct question #dustcollection
I built the garbage can separator for the drum sander. I welded a rolled flange into the lid, added a cross beam and center bolt sticking down to attach a Cleanstream Hepa filter. Shortened a 5 gallon plastic bucket and pop riveted it to the lid to surround
the filter and create a bit of cyclonic effect and protect the filter from a direct stream of dust. Added the plumbing fitting off to the side to get the cyclone action and it works really well.?
I can run the sander and get through two filter cleanings before the can gets about 1/2 full of powder, then I have to dump it all and start over. Previously this all went into my Oneida 1.5hp cyclone, it's an early model that has the internal filter and it's
a royal pain to clean. So by using this separator, none of the sanding dust ever makes it to that filter.
=============== Brian Lamb blamb11@... Phoenix, AZ ===============
Agree with Brian G on his points about rolling offsets - I have employed them with my Nordfab kit and they are a bit shorter and a good bit more efficient in terms of loss versus sticking to strictly orthogonal?layouts.
Brian L, I love the garbage can separator, it must be the best dust collection bodge I have yet to see. It looks low- loss, suction will keep the lid on tight -- how does it do at separation effectiveness, e.g., what % does it collect? This looks very
good for keeping fine dust from the far end where I'm thinking of adding the compression thingy to convert planar shavings into fuel pellets.
Cheers
Eric
On Wed, Jun 10, 2020 at 10:27 PM Brian Greene < Brian@...> wrote:
Google “pipe offset” and “rolling offset”, and there are calculators.? With 45s and 90s you can make any angle you need, just “roll” it.?
That’s a 45 degree fitting that runs at 15ish into the dc.? If you use 2 or more you can get shorter and fancier, but with dc longer runs between bends is better anyway.
Sent from a device with less than stellar autocorrect
On Jun 10, 2020, at 10:00 PM, Alex Bowlds <aabj@...> wrote:
?Nordfab has flexible pipe sections, not just rigid pipe. I think they are a bit more costly than a comparable length of the rigid Nordfab piping. Check their website to see if any of their flexible options will meet your needs.?
Alex
?
Joe, without seeing a potential layout it's extremely hard to offer advice but in my delusional mind and see a solution that only relies on ready made pieces using tees and large radius elbows. No flex or custom made elbows necessary.
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
--
|
Joe,
The Nordfab custom elbow has very little flexibility during installation as far as changing the angle is concerned.? I chose this option when I ordered by ClearVue cyclone and Nordfab duct.? I ordered a custom angle elbow to connect the cyclone to the main run.? As a result, my duct is not as close to the ceiling as I'd like, but so far, it has not been a problem.? I have planned to buy the rigid flex duct from Nordfab so see if I can raise the duct up higher, but since my current set up is working fine, I procrastinated.? So, I can't comment on its performance.??
I designed my entire Nordfab ducting run using Sketchup.? I referenced Nordfab latest catalog, use the part number to search the 3D model database, pick the part, and build the run piece by piece (after I build a model of my shop/garage in Sketchup).? It is very precise.? Afterward, Sketcup generates a part list, plug it in Excel, and you have a quote bases on the catalog's prices.? I tried the design services of one of the Nordfab distributors, but gave up before I tried doing it myself.? The added benefit of this is that I now can change, extend, shrink the duct work in software before I make change in real time.
It was a little fun project.??
SW
|
On 6/10/20 8:55 PM, Brian Lamb wrote: Detail of clamp, I use the knurled knob on the blast gate to hold the
clamp ring on the drop so I don’t have to fumble with that while I’m
attaching the lower portion. I have one connection that I swap out with another.? I understand the? knurled knob? you have there.? My? way to skin that cat was to use pop-rivets to put a ring of sheet metal inside one of the components so they slip together and the? added material holds it all together while I mess with the damn clamp.
|
Good idea, might have to try that.
Brian Lamb
blamb11@...
www.lambtoolworks.com
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Show quoted text
On Jun 11, 2020, at 4:57 PM, Cliff Rohrabacher, Esq. <rohrabacher@...> wrote:
On 6/10/20 8:55 PM, Brian Lamb wrote:
Detail of clamp, I use the knurled knob on the blast gate to hold the
clamp ring on the drop so I don’t have to fumble with that while I’m
attaching the lower portion.
I have one connection that I swap out with another. I understand the
knurled knob you have there. My way to skin that cat was to use
pop-rivets to put a ring of sheet metal inside one of the components so
they slip together and the added material holds it all together while I
mess with the damn clamp.
|
Here are a few pics of the mess.? The pipe will go up from the right side of the pics, follow the ceiling until a horizontal can clear the HVAC duct
and go to the other side.? A branch will run each way along the left side of the I-Beam to the far wall where the RAS is, to the jointer and planer location, and then back the other way to the sander. Another branch will follow the ceiling back down the other
side to the saw/shaper and to other machines on? that side of the room.? The angle from the wall to the ceiling is 106 degrees.
?
I can use a standard 90 at the collector and not have the vertical pipe be plumb.? My engineer and builder OCD eye would not love that but I could live
with it. Where I transition from going vertical to horizontal near the ridge beam, I need slight bend (16 degrees) on each end.? I played with double elbows to get custom angles but that changes the pipe angles to the ceiling and it looks like the cost of
two standard elbows and clamps is more than a custom angle and clamps.
?
  
?
toggle quoted message
Show quoted text
From: [email protected] < [email protected]>
On Behalf Of Joe Jensen
Sent: Wednesday, June 10, 2020 4:20 PM
To: [email protected]
Subject: Re: [FOG] Nordfab rigid metal flex duct question #dustcollection
?
I am going to do a quick sketchup.? It’s not like that, the way it will be laid out.? Because of overhead doors and the footprint of the shop the collector
is on one side next to a 9 ft wall and I need to run the duct up the vault to the ridge.? Once there I can use standard parts.? The roof plane ?is 108.4 degrees to the side wall. Once running up the roof plane I need to get back to horizontal below the ridge
beam which extends about 10” below the ceiling.
?
?
I assume you are running the main branch down the middle at the peak of the ceiling? Standard Y’s should get the branch running down the slope of the ceiling, it’s when you want to come off the slop and have a vertical run of pipe that
the issue comes in, correct? Seems like a combination of two 45’s or 90’s at that point will get you any angle you want without resorting to custom fittings. I use spiral pipe and long sweep fittings, and have been known to cut one where I need to get whatever
angle I want, then you rivet the short Nordfab rolled edge piece so you can clamp it to your other parts.
I have a lot of Nordfab “joiner” pieces adapted to my spiral pipe to act like quick changes.
?
?
My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
?
|
Hi Joe,? No shag carpet o well. Custom elbows , two barrels under The cyclone if you have the height. Mac,,, Designing and building for 47 years
toggle quoted message
Show quoted text
On Jun 11, 2020, at 10:00 PM, Joe Jensen <joe.jensen@...> wrote:
?
Here are a few pics of the mess.? The pipe will go up from the right side of the pics, follow the ceiling until a horizontal can clear the HVAC duct
and go to the other side.? A branch will run each way along the left side of the I-Beam to the far wall where the RAS is, to the jointer and planer location, and then back the other way to the sander. Another branch will follow the ceiling back down the other
side to the saw/shaper and to other machines on? that side of the room.? The angle from the wall to the ceiling is 106 degrees.
?
I can use a standard 90 at the collector and not have the vertical pipe be plumb.? My engineer and builder OCD eye would not love that but I could live
with it. Where I transition from going vertical to horizontal near the ridge beam, I need slight bend (16 degrees) on each end.? I played with double elbows to get custom angles but that changes the pipe angles to the ceiling and it looks like the cost of
two standard elbows and clamps is more than a custom angle and clamps.
?
<image001.jpg> <image002.jpg> <image003.jpg>
?
?
I am going to do a quick sketchup.? It’s not like that, the way it will be laid out.? Because of overhead doors and the footprint of the shop the collector
is on one side next to a 9 ft wall and I need to run the duct up the vault to the ridge.? Once there I can use standard parts.? The roof plane ?is 108.4 degrees to the side wall. Once running up the roof plane I need to get back to horizontal below the ridge
beam which extends about 10” below the ceiling.
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I assume you are running the main branch down the middle at the peak of the ceiling? Standard Y’s should get the branch running down the slope of the ceiling, it’s when you want to come off the slop and have a vertical run of pipe that
the issue comes in, correct? Seems like a combination of two 45’s or 90’s at that point will get you any angle you want without resorting to custom fittings. I use spiral pipe and long sweep fittings, and have been known to cut one where I need to get whatever
angle I want, then you rivet the short Nordfab rolled edge piece so you can clamp it to your other parts.
I have a lot of Nordfab “joiner” pieces adapted to my spiral pipe to act like quick changes.
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My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
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OK, I understand better now. Does Nordfab make a 30? ell? Put a 45 and 30 together at the wall to ceiling by the DC, that’s within 1? of your 106? (16? more than 90). Do a fitting close to the beam with double Y and 45’s to get the horizontal run headed each direction along the beam. After that fitting you hook on a 30? ell and go down the other slope to the opposite wall, where again a 45 and 30 should get you vertical again.
You might have to run a short section of horizontal pipe across the top of your AC spiral pipe or slightly drop the pipe from following the ceiling perfectly at the centers to clear that beam. Most likely if you did the bends close to the sidewalls at 30? and dropped the run gradually along the ceiling it would just clear the I-beam, so all you would need is maybe a 3-4” spacer on the upper most piece of unistrut where it’s close to the lights anyway.
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Here are a few pics of the mess.? The pipe will go up from the right side of the pics, follow the ceiling until a horizontal can clear the HVAC duct and go to the other side.? A branch will run each way along the left side of the I-Beam to the far wall where the RAS is, to the jointer and planer location, and then back the other way to the sander. Another branch will follow the ceiling back down the other side to the saw/shaper and to other machines on? that side of the room.? The angle from the wall to the ceiling is 106 degrees. ? I can use a standard 90 at the collector and not have the vertical pipe be plumb.? My engineer and builder OCD eye would not love that but I could live with it. Where I transition from going vertical to horizontal near the ridge beam, I need slight bend (16 degrees) on each end.? I played with double elbows to get custom angles but that changes the pipe angles to the ceiling and it looks like the cost of two standard elbows and clamps is more than a custom angle and clamps. ? <image001.jpg><image002.jpg><image003.jpg> ? ? I am going to do a quick sketchup.? It’s not like that, the way it will be laid out.? Because of overhead doors and the footprint of the shop the collector is on one side next to a 9 ft wall and I need to run the duct up the vault to the ridge.? Once there I can use standard parts.? The roof plane ?is 108.4 degrees to the side wall. Once running up the roof plane I need to get back to horizontal below the ridge beam which extends about 10” below the ceiling. ? ? I assume you are running the main branch down the middle at the peak of the ceiling? Standard Y’s should get the branch running down the slope of the ceiling, it’s when you want to come off the slop and have a vertical run of pipe that the issue comes in, correct? Seems like a combination of two 45’s or 90’s at that point will get you any angle you want without resorting to custom fittings. I use spiral pipe and long sweep fittings, and have been known to cut one where I need to get whatever angle I want, then you rivet the short Nordfab rolled edge piece so you can clamp it to your other parts. I have a lot of Nordfab “joiner” pieces adapted to my spiral pipe to act like quick changes. ? ? My shop has 9 foot sidewalls and vaulted ceilings. I am going to run the Nordfab duct up on the ceiling to maximize clearance overhead.? I have 3 options as I see it:
1) order custom elbows.? slickest solution but they need to be fabricated pretty accurately as the Nordfab does not seem to have any forgiveness once clamped.
2) do flex pipe for the custom angles.? The Nordfab rigid metal flex pipe looks perfect.? I need 7" and the min radius is quite large at 50" but that's not really an issue for me.? with this approach it would fit well for sure.
3) Do spiral wire poly hose.?
Thoughts, and has anyone dealt with custom angles?? Accuracy of Nordfab custom parts?
?
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Joe Jensen
Bill Belanger
Larry