I was hoping to have something to contribute for my first post, but the only mods I've done have been other peoples', so here's this. Whenever I cut my brass tubing into a half-pipe for a breach, the brass seems to expand outward, making the other piece that slides over it move much less smoothly. Is this a problem that everyone has, or does it have something to do with my cutting method? Is there a way to fix it?
Expanding Brass Half-pipes
Started by BobRedshirt, Jan 10 2009 02:55 PM
9 replies to this topic
#2
TantumBull
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Posted 10 January 2009 - 03:02 PM
I've never experienced this. What tool/s are you using to cut it?
#3
CROW
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Posted 10 January 2009 - 03:10 PM
Yep, I've had that happen before, and I've always just used needlenose pliars to gently bring it back to its orginal shape.
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#4
Darth Tom
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Posted 10 January 2009 - 03:42 PM
What I do when this happens is to sandwich it between other sizes of brass until it fits. If the halfpipe is 9/16, sit a piece of 17/32 inside of it. Try to press the 9/16 around it, then slide 19/32 over all of it. Do it enough times and it'll bend back into place nicely.
#5
BobRedshirt
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Posted 10 January 2009 - 04:16 PM
I usually use a dremel with a cutting wheel to cut it.
#6
nerfnut23
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Posted 10 January 2009 - 06:08 PM
I usually use a dremel with a cutting wheel to cut it.
What cutting wheel are you using? If it is a wood/plastic, tile, anything other than a thincut metal wheel, you WILL have these problems. If it is, then the brass may be bad. Get it from Hobby People, they have wonderful brass.
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#7
BobRedshirt
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Posted 10 January 2009 - 06:19 PM
It's thincut metal, and I believe diamond tipped... I get my brass from ACE, mostly.I usually use a dremel with a cutting wheel to cut it.
What cutting wheel are you using? If it is a wood/plastic, tile, anything other than a thincut metal wheel, you WILL have these problems. If it is, then the brass may be bad. Get it from Hobby People, they have wonderful brass.
#8
nerfnut23
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Posted 11 January 2009 - 02:37 AM
Use a reinforced without the diamond tips. It will help. And while you're at it, get your brass from a hobby shop.It's thincut metal, and I believe diamond tipped... I get my brass from ACE, mostly.I usually use a dremel with a cutting wheel to cut it.
What cutting wheel are you using? If it is a wood/plastic, tile, anything other than a thincut metal wheel, you WILL have these problems. If it is, then the brass may be bad. Get it from Hobby People, they have wonderful brass.
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#9
slowguitarman
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Posted 11 January 2009 - 10:22 AM
Not everyone can get brass from a hobby shop. Also, most stores with brass sell K&S brand, so it will be the same anyway. Brass half-pipes always expand out for me, and I just gently push inward on the brass with my fingers. Using your fingers will keep from messing up the brass.
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#10
Quilan Fett
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Posted 12 January 2009 - 06:41 PM
I used a standard non-reinforced and it cut fine. By the time I was done with the breech, the wheel was the size of a mini-marshmallow though.I usually use a dremel with a cutting wheel to cut it.
What cutting wheel are you using? If it is a wood/plastic, tile, anything other than a thincut metal wheel, you WILL have these problems. If it is, then the brass may be bad. Get it from Hobby People, they have wonderful brass.
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