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15th January 2014, 01:52 PM #1Senior Member
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New setup. Gate location advice please!
So here's the duct layout for my new shed. All ducting is 6" and the dust extractor will be outside in it's own shed with the inlet at the wall (at the AB junction ) I know the branch coming off at point A is less than a perfect situation but it's what I've got to work with. Branch BC is heading off to the combo machine (5" inlets for the thicknesser/saw and 4" to the saw blade guard).
Line D is running to a bandsaw (5" to the bottom of the cabinet, 4" to a duct at the top of the blade).
Line G will be a 6" general purpose line that can be set up on the workbench or router table (the whole workshop is going to be on wheels so I can move it around)
The dust extractor is a Felder AF22 (3hp 3phase with an 18" impeller) so should have plenty of suck at the source.
The big question is where do I put the gates and I'd love some advice from the learned folk around here! Am I ok just to put gates at points C,D and G? Any other arrangements people can see benefits in?
I'd originally decided to put gates at A and B as well so the run to the combo machine was very direct but I'm not sure it's required....
Thanks in advance!
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15th January 2014 01:52 PM # ADSGoogle Adsense Advertisement
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16th January 2014, 12:29 AM #2
If the gates are manually operated by hand you want them as high as possible but within reach to be able to open them, if they are to be operated remotely, (not by hand) then ideal location is as close as practical to the main line.
One thing to be aware of is that an unused, (gate closed) leg can/will fill up with sawdust and if it is a long leg that could be quite a bit of sawdust that the DC has got too move and it may not be able to, a solution to this is drill a small hole (1/4") in the gate, this breaks the vacuum.
I wouldn't be too fussed about putting gates at A and B.
Bringing the piping/hose into the combo is a bit of a pain, you need access pretty much all the way around it, basically the trick here is to be able to pick up each part of the machine without interfering with another operation, as a suggestion I'd come up the back of the saw somewhere close to the gap near that triangle table extension with a bit of solid but no higher than the table hieght and maybe low enough to get a bend on to take it out under the infeed on the planer, that really depends on if you will be cutting wide sheet material, then come down off the main with enough hose to be able to pick up planing/thicknessing/SM and saw by swapping hose as required.
Pete
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16th January 2014, 12:43 PM #3
Personally, if I was going for "minimal" gates I'd put them at B, D & F.
At B rather than C, to avoid the issue PJT mentions with long lengths that become "backwash zones."
At F rather than G for the same reason, plus it keeps the gates D & F together for easier switching. (You'd stand in one spot to set either/both.)
- Andy Mc
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16th January 2014, 06:09 PM #4Senior Member
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New setup. Gate location advice please!
That's good info about the 1/4" hole in the gate. I was originally going to gate at A&B to stop the buildup of dust but wasn't sure if it'd be a drama. I have zero experience with ducted systems.
I'm hoping to be able to leave the combo and the bandsaw open together as those are the 2 machines I'll be using the most.
I 'm planning on putting the combo with the planer table parallel to the wall that has the duct running down it. I was going to have the saw hood 4" connected above head height on a boom arm with flexi that drops down to the saw hood. The 5" that comes out at floor level I'll change between the saw cabinet and thicknesser/planer as I need it.
That's the theory anyway
The FDB option makes sense to me.
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