megalomania
June 26th, 2003, 03:25 PM
Digital-Demon
A new voice
Posts: 38
From:
Registered: SEP 2000
posted March 16, 2001 04:39 PM
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I went to the local plumber supply shop and bought 1 piece of 30" long 2" pipe and one end cap. Now here’s the problem it has a small bump in the tube all the way down on the inside, how do I get rid of it?
Acid wont work because it will also eat the rest of the tube.
Any other ideas?
Thanx
ALENGOSVIG1
Moderator
Posts: 766
From: Vancouver, Canada
Registered: NOV 2000
posted March 16, 2001 06:54 PM
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If you want a REAL mortar i recommend you buy Rgnar Bensons Homemade weapons book Or read the OCR'd version in nbk's file.
BoB-
Frequent Poster
Posts: 657
From:
Registered: SEP 2000
posted March 16, 2001 10:11 PM
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Its called a seam, its formed because a machine rolls the metal into a tube, buy seamless.
SMAG 12B/E5
Frequent Poster
Posts: 61
From:
Registered: FEB 2001
posted March 16, 2001 10:32 PM
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BoB is correct. Buy seamless tubing. It is called mechanical or hydraulic tubing. The inside can be pollished, if needed, with a power drill, drill extension and tube poilisher (lookes like a sandpaper "flapper cylinder"). A cylinder hone will also polish the tube. An improvised one can be fabricated easily. I have a set of plans for a 60mm mortar but no way to efficently post pictures (still learning). Be sure to proof test your barrel before using. Live rounds must be bore safe.
A new voice
Posts: 38
From:
Registered: SEP 2000
posted March 16, 2001 04:39 PM
--------------------------------------------------------------------------------
I went to the local plumber supply shop and bought 1 piece of 30" long 2" pipe and one end cap. Now here’s the problem it has a small bump in the tube all the way down on the inside, how do I get rid of it?
Acid wont work because it will also eat the rest of the tube.
Any other ideas?
Thanx
ALENGOSVIG1
Moderator
Posts: 766
From: Vancouver, Canada
Registered: NOV 2000
posted March 16, 2001 06:54 PM
--------------------------------------------------------------------------------
If you want a REAL mortar i recommend you buy Rgnar Bensons Homemade weapons book Or read the OCR'd version in nbk's file.
BoB-
Frequent Poster
Posts: 657
From:
Registered: SEP 2000
posted March 16, 2001 10:11 PM
--------------------------------------------------------------------------------
Its called a seam, its formed because a machine rolls the metal into a tube, buy seamless.
SMAG 12B/E5
Frequent Poster
Posts: 61
From:
Registered: FEB 2001
posted March 16, 2001 10:32 PM
--------------------------------------------------------------------------------
BoB is correct. Buy seamless tubing. It is called mechanical or hydraulic tubing. The inside can be pollished, if needed, with a power drill, drill extension and tube poilisher (lookes like a sandpaper "flapper cylinder"). A cylinder hone will also polish the tube. An improvised one can be fabricated easily. I have a set of plans for a 60mm mortar but no way to efficently post pictures (still learning). Be sure to proof test your barrel before using. Live rounds must be bore safe.