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 krypto2000
Registered: 09/30/08
Posts: 87
Loc: Slightly off the Ground
Last seen: 11 years, 1 month
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 How to cut some metal ducting? 
#132770 - 10/15/08 04:01 PM (16 years, 1 month ago) |
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I'm making my own carbon filter following this tek. I've purchased everything, more or less. I still have a few pieces to get, but that doesn't matter. My question is how do I cut the 6" pipe? I got a roll of pipe that is a couple feet long (3' I'm guessing), and I need to cut it. I have a circular saw, a jigsaw, and a drill. I also have a dremel somewhere but I haven't been able to find it in over a year so I probably can't use that. I figured a dremel would work best, my second bet is on the jigsaw perhaps? I'm just concerned about fucking up the blade if it's not supposed to be cutting metal. On a jigsaw this isn't a big deal as blades are cheap, but just wanted to get some input before I attempt anything as I'm in no rush atm.
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NobodyImportant
Science Is Subculture
 
Registered: 05/03/08
Posts: 4,981
Loc: Jawjuh.
Last seen: 11 years, 7 months
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Re: How to cut some metal ducting? [Re: krypto2000]
#132775 - 10/15/08 04:08 PM (16 years, 1 month ago) |
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I would use just a normal old hand saw 
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Glass By: US Tubes, ZOB, Roor.de, Sheldon Black, Jerome Baker, Medicali, Kennaroo, Sand, Alex K, Local and Unknown Artists
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 FarBeyondDriven
Truthfully, I'm a bullshitter
Registered: 04/22/08
Posts: 13,834
Loc: Greenbow, Alabama
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i used to do duct work...use a saws all
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krypto2000
Registered: 09/30/08
Posts: 87
Loc: Slightly off the Ground
Last seen: 11 years, 1 month
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Oh, actually I just looked it up and I have a saws all. I have been calling it a jig saw this whole time. I looked that up to and that's definitely not what I have lol. Will do that, awesome. Thanks man. 
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Dr. Penguin
Registered: 05/19/08
Posts: 1,036
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Re: How to cut some metal ducting? [Re: krypto2000]
#132808 - 10/15/08 06:06 PM (16 years, 1 month ago) |
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Tin snips or a heavy duty pair of scissors worked for me when I built mine. I think they are a bit more precise then a sawz-all. Be safe, ducting is sharp.
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coda
Registered: 04/20/08
Posts: 4,736
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Re: How to cut some metal ducting? [Re: Dr. Penguin]
#132827 - 10/15/08 07:40 PM (16 years, 1 month ago) |
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yah, i was going to suggest a tin snip as well. If you use a saws all to cut your pipe, make sure to use a vise or some type of clamp to hold the ducting still. I would definitely suggest against using your hands, or legs, to hold the pipe still.
And yah, watch those edges, cut metal is fucking vicious.
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MFDoom666: sobriety kills my buzz every time.
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krypto2000
Registered: 09/30/08
Posts: 87
Loc: Slightly off the Ground
Last seen: 11 years, 1 month
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Re: How to cut some metal ducting? [Re: coda]
#132996 - 10/16/08 06:20 AM (16 years, 1 month ago) |
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Tin snips sounds like it might make a cleaner cut and they're cheap too. I'll try the saws all when I get home, but if it's giving me any difficulty I'll go and pick up some tin snips. Also, this might be a dumb question, but where do I add the carbon? I'm assuming on the outside ring between the 8" and 6" hardware cloth? I then cap the 8" end and hook up my exhaust to the 6" side correct?
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DungenessDank
Lord of the Flies
Registered: 05/05/08
Posts: 9,372
Loc: PNW
Last seen: 11 years, 6 months
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Re: How to cut some metal ducting? [Re: krypto2000]
#133011 - 10/16/08 10:47 AM (16 years, 1 month ago) |
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Check a pet store or maybe home depot.
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krypto2000
Registered: 09/30/08
Posts: 87
Loc: Slightly off the Ground
Last seen: 11 years, 1 month
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Re: How to cut some metal ducting? [Re: DungenessDank]
#133014 - 10/16/08 11:08 AM (16 years, 1 month ago) |
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No, I know where to get it from. Well, I was figuring a pet store, but I haven't gone looking for it yet. I just wasn't sure if I put the carbon in that outside ring or the inner tube. It makes the most sense to me that it'd go on the outside, but I'm not sure so I'm asking for clarification. 
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Dr. Penguin
Registered: 05/19/08
Posts: 1,036
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Re: How to cut some metal ducting? [Re: krypto2000]
#133017 - 10/16/08 11:48 AM (16 years, 1 month ago) |
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The carbon goes between the 6" and 8" rings. Make sure you add some batting at the intersection of the 6" pipe and 6"-8" adapter, the bottom of the outer ring where the carbon goes. No air will get to that part without already passing through some carbon so no need to waste it down there as it's pretty expensive stuff.
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