Cutting Pipe into Post

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Re: Cutting Pipe into Post

Post by M.Magis » Wed Sep 11, 2019 8:12 pm

Silver wrote:
Wed Sep 11, 2019 9:37 am
I can't imagine cutting 4 1/2" drill stem with a chop saw, maybe there are better saws and blades than I have seen.
It’s slow going with an abrasive chop saw, but a cold cut saw is quite different. It zips through in seconds.



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Re: Cutting Pipe into Post

Post by Silver » Wed Sep 11, 2019 9:21 pm

M.Magis wrote:
Wed Sep 11, 2019 8:12 pm
Silver wrote:
Wed Sep 11, 2019 9:37 am
I can't imagine cutting 4 1/2" drill stem with a chop saw, maybe there are better saws and blades than I have seen.
It’s slow going with an abrasive chop saw, but a cold cut saw is quite different. It zips through in seconds.
Sounds interesting, I will have to look into them.

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Re: Cutting Pipe into Post

Post by Lucky » Thu Sep 12, 2019 7:04 am

We watched some videos on a cold saw at work a few weeks ago. I’ll have to see if they bought one or not. Looked much faster and quieter than an abrasive chop saw.

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Re: Cutting Pipe into Post

Post by callmefence » Sun Sep 29, 2019 11:53 am

Silver wrote:
Wed Sep 11, 2019 9:21 pm
M.Magis wrote:
Wed Sep 11, 2019 8:12 pm
Silver wrote:
Wed Sep 11, 2019 9:37 am
I can't imagine cutting 4 1/2" drill stem with a chop saw, maybe there are better saws and blades than I have seen.
It’s slow going with an abrasive chop saw, but a cold cut saw is quite different. It zips through in seconds.
Sounds interesting, I will have to look into them.
So I took a picture of Pete cutting post out of 27/8 oilfield pipe yesterday with a 15 amp Makita chopsaw on the ground and harbor freight STUD abrasive blades. Of generator power. He cut 80 post and bundled them in bundles of 20 by himself in about 5 hours. Including lunch.. And 1 1/2 blades. I don't like cold cut blades. The key is proper pressure and most importantly regular deglazing of the blade.


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Last edited by callmefence on Sun Sep 29, 2019 12:11 pm, edited 1 time in total.
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Re: Cutting Pipe into Post

Post by Nesikep » Sun Sep 29, 2019 12:11 pm

I've never had any luck with standard electric abrasive chop saws, especially on thicker walled stuff
My old workplace had a cold cut saw, very expensive blades but they last forever and they do cut fast (and quiet)

For a portable system, a gas powered abrasive chop saw is really nice.. also, don't just watch for your pant leg burning but any grass or whatever else is around! (the fuel can?) I was just given an old, bagged out saw (need to give it a rebuild) and it's still been handy.
Biggest problem with the electric ones on a stand is it's hard to rotate the pipe, they don't like cutting through thick pieces of metal (glazing, melting their way through, etc), the handheld gas powered one allows you to rock the cut back and forth reducing heat buildup in one area
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Re: Cutting Pipe into Post

Post by ohiosteve » Sun Sep 29, 2019 6:59 pm

callmefence wrote:
Sun Sep 29, 2019 11:53 am
Silver wrote:
Wed Sep 11, 2019 9:21 pm
M.Magis wrote:
Wed Sep 11, 2019 8:12 pm


It’s slow going with an abrasive chop saw, but a cold cut saw is quite different. It zips through in seconds.
Sounds interesting, I will have to look into them.
So I took a picture of Pete cutting post out of 27/8 oilfield pipe yesterday with a 15 amp Makita chopsaw on the ground and harbor freight STUD abrasive blades. Of generator power. He cut 80 post and bundled them in bundles of 20 by himself in about 5 hours. Including lunch.. And 1 1/2 blades. I don't like cold cut blades. The key is proper pressure and most importantly regular deglazing of the blade.


Image
Image
Callmefence how do you deglaze an abrasive blade? The only way I know is to cut a thin piece of stock that is standing up perpendicular to the blade. It seems like the cheaper blades definitely glaze up faster than the expensive ones
People are usually shocked when they find out I'm not a very good electrician.

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Re: Cutting Pipe into Post

Post by Silver » Sun Sep 29, 2019 7:49 pm

ohiosteve wrote:
Sun Sep 29, 2019 6:59 pm
callmefence wrote:
Sun Sep 29, 2019 11:53 am
Silver wrote:
Wed Sep 11, 2019 9:21 pm


Sounds interesting, I will have to look into them.
So I took a picture of Pete cutting post out of 27/8 oilfield pipe yesterday with a 15 amp Makita chopsaw on the ground and harbor freight STUD abrasive blades. Of generator power. He cut 80 post and bundled them in bundles of 20 by himself in about 5 hours. Including lunch.. And 1 1/2 blades. I don't like cold cut blades. The key is proper pressure and most importantly regular deglazing of the blade.


Image
Image
Callmefence how do you deglaze an abrasive blade? The only way I know is to cut a thin piece of stock that is standing up perpendicular to the blade. It seems like the cheaper blades definitely glaze up faster than the expensive ones
Might not be the correct way but I always just take a piece of flat thin-ish bar, get the blade spinning, let off the trigger and tap the edge of the flat bar against the cutting edge while the blade is still spinning.

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Re: Cutting Pipe into Post

Post by ohiosteve » Sun Sep 29, 2019 8:20 pm

Silver wrote:
Sun Sep 29, 2019 7:49 pm
ohiosteve wrote:
Sun Sep 29, 2019 6:59 pm
callmefence wrote:
Sun Sep 29, 2019 11:53 am


So I took a picture of Pete cutting post out of 27/8 oilfield pipe yesterday with a 15 amp Makita chopsaw on the ground and harbor freight STUD abrasive blades. Of generator power. He cut 80 post and bundled them in bundles of 20 by himself in about 5 hours. Including lunch.. And 1 1/2 blades. I don't like cold cut blades. The key is proper pressure and most importantly regular deglazing of the blade.


Image
Image
Callmefence how do you deglaze an abrasive blade? The only way I know is to cut a thin piece of stock that is standing up perpendicular to the blade. It seems like the cheaper blades definitely glaze up faster than the expensive ones
Might not be the correct way but I always just take a piece of flat thin-ish bar, get the blade spinning, let off the trigger and tap the edge of the flat bar against the cutting edge while the blade is still spinning.
Haha, that's what I do also, I was just wondering if there was any other way.
People are usually shocked when they find out I'm not a very good electrician.

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Re: Cutting Pipe into Post

Post by callmefence » Mon Sep 30, 2019 6:20 am

ohiosteve wrote:
Sun Sep 29, 2019 8:20 pm
Silver wrote:
Sun Sep 29, 2019 7:49 pm
ohiosteve wrote:
Sun Sep 29, 2019 6:59 pm

Callmefence how do you deglaze an abrasive blade? The only way I know is to cut a thin piece of stock that is standing up perpendicular to the blade. It seems like the cheaper blades definitely glaze up faster than the expensive ones
Might not be the correct way but I always just take a piece of flat thin-ish bar, get the blade spinning, let off the trigger and tap the edge of the flat bar against the cutting edge while the blade is still spinning.
Haha, that's what I do also, I was just wondering if there was any other way.
[/quote
We just pick up on the saw while starting a cut and kinda slap the blade against the pipe. Do it on nearly every cut. With a little practice you never break stride. You just develop a feel for how hard to hit it.
You can tell when the blade is starting to glaze.
As your Sparks get smaller and less of them.
Then it starts cutting slow and most people just push harder. Deglazing as soon as you see the sparks starting to change makes all the difference in the world.
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Re: Cutting Pipe into Post

Post by Lucky » Mon Sep 30, 2019 5:47 pm

Cut 28 more post today with the porta band. I’d guess it took 2.5 hours. Think it would have went faster but I made a few mistakes with the new setup I’ve been trying out. Pretty much I got the pipe on saw horses and cradle 1 piece on top of 2. Then I set the tractor forks up so I can pull a piece of pipe on top of them and have room to make the cut. Once cut they roll off the slightly angled forks into a not so neat pile.

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