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Post by DamnJeep on Feb 26, 2012 19:15:10 GMT -4
Inspired by that "other" thread! For those of us who prefer to make our own tools (which really means I'm plain old broke and can't afford good stuff ) For the most part I still use a grinder to notch pipes but have made this notcher a few years ago but thought I would share for those that want to make their own. Uploaded with ImageShack.usUploaded with ImageShack.usUploaded with ImageShack.usGo to Metals r us. Get some big ass flat bar, a piece of angle, a bolt for adjusting angle. The bushings are from Kinecor. A chunk of cold rolled for the holder. THe hard part was threading the 1/2" fine thread bolt to hold the hole saw on. I did it on my drill press. Not super accurate but it works.
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rue
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Post by rue on Feb 26, 2012 20:25:15 GMT -4
I like....think I might try and build a new one.Mine is getting beat!What brand is that saw?
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Post by DamnJeep on Feb 26, 2012 22:56:42 GMT -4
Its a Starrett hole saw. Works fairly well.
I was going to make it adjustable for off-sets but took the easy way our.
If I had to make another I would change the clamp. This one was made from scraps. I thought of a better way as I was building it.
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Post by chefted on Feb 28, 2012 20:57:50 GMT -4
Cool, how long does a hole saw last?
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Post by DamnJeep on Feb 28, 2012 21:37:39 GMT -4
Cool, how long does a hole saw last? I made all the copes on the kids buggy with one saw. Of course I'm not gentle with stuff so I need a new one now Sparks were flying the last cut I made! ;D
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Creepy
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Post by Creepy on Feb 28, 2012 22:00:43 GMT -4
Where did you get the holesaw?
Starrett = big bucks in measuring tools.
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The Garagemahal
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Post by The Garagemahal on Feb 28, 2012 22:28:43 GMT -4
Jan , try Schooner . You can try Greenlee saws ( this is what Most of mine are ) Milwakee as well Also can buy them at any electrical / plumbing shops in burnside . Lots of places to look to buy them at
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Post by DamnJeep on Feb 28, 2012 23:13:52 GMT -4
I believe Schooner in Burnside. I'll check receipts. I tried alot of places because I was looking for a constant pitch saw. All I could find were variable pitch locally. I was told there is "no such thing as a fine constant pitch hole saw"..... I hate shopping here in the HRM However a buddy who make air plane parts out of thin walled 4130 bought some constant pitch saws from this place for his notcher www.medfordtools.com/metalworking/holesaws.htmlIts been a while since I got mine so maybe you can find better saws now.
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Creepy
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Post by Creepy on Feb 29, 2012 1:37:17 GMT -4
Ok, i'll try Schooner.
Now where are the holesaws? haha Just joking, should be easy to find.
I'm just doing pipe with relatively thick walls, the 4tpi with variable pitch should be fine, as long as I get a good one. Good link there Rico - some tips and tech there.
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Big G
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Post by Big G on Feb 29, 2012 9:40:29 GMT -4
Constant pitch saw supposed to work better the variable?
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Creepy
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Post by Creepy on Feb 29, 2012 14:47:12 GMT -4
For thin wall aircraft tube, yeah. Read the link? I'm mostly doing sch40 pipe.
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Post by theonlybull on Feb 29, 2012 21:16:53 GMT -4
we get most of our saws from KBC tools www.kbctools.com/can/main.cfmi can't say enough good about the carbide ones too :-) i should have built one of these notchers, i've just used my 80th length of tubing from handrails......
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Post by DamnJeep on Feb 29, 2012 22:18:22 GMT -4
For thin wall aircraft tube, yeah. Read the link? I'm mostly doing sch40 pipe. Yup. Way better for the thin stuff. Even thick stuff. Even contact surface less chance of that odd tooth causing grief. The other thing you have to take into consideration when buying a saw is find the deepest you can. Most saws are somewhat shallow so what ends up happening is if you are making a long (small or large angle depending on you look at it) cut the saw won't make it all the way through. So you either have to flip the tube or take it out to cut the first piece out and then continue the cut. Sometimes you can't avoid this (pipe size) but getting a deep saw helps.
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Creepy
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Post by Creepy on Feb 29, 2012 22:22:19 GMT -4
you find the tighter pitch better on pipe too, eh?
Guess I'll have to experiment a little.
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Post by DamnJeep on Mar 1, 2012 15:02:21 GMT -4
you find the tighter pitch better on pipe too, eh? Guess I'll have to experiment a little. What I mean is a constant pitch "seemed" to work better. But not a fine tooth saw if you know what I mean. I think it was something like a 6 teeth/inch. Seemed less grabby.
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