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Author Topic: GB Mortar Contest Entry - CW  (Read 3170 times)

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Offline Cat Whisperer

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GB Mortar Contest Entry - CW
« on: August 30, 2005, 12:17:23 AM »
Here it is, loaded with golf ball #8, after firing the 7 rounds for competition.  (That was so I could concentrate on the pictures and not do something STUPID nor UNSAFE - like leaving the INFAMOUS Goex powder can near the mortar when firing it.)

Note the simplicity of lines and design - to accentuate the elegence of design and rendition of some of the others we've we've seen sneak previews of.

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More pix and details very soon.
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Tim K                 www.GBOCANNONS.COM
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Offline Cat Whisperer

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GB Mortar Contest Entry - CW
« Reply #1 on: August 30, 2005, 04:03:15 PM »
Here's the drawing of the tube and breech plug.
I'll replace this drawing with one with dimensions as soon as I get it dimensioned.

Breech plug slides into the tube from the muzzle.

1/4-20 set screw (breach plug is threaded, barrel has 1/4" clearance hole) puts pressure on one side of trunnion pushing it forward clamping breech plug between shoulder inside the tube and the trunion - locking assembly together.

Touch hole is drilled through tube and trunion.

more to come

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Tim K                 www.GBOCANNONS.COM
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Offline Powder keg

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GB Mortar Contest Entry - CW
« Reply #2 on: August 30, 2005, 04:21:45 PM »
Nice Job CW!!!
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Wesley P.
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Custom Machine work done reasonable. I have a small machine shop and foundry. Please let me build your stuff. I just added Metal etching to my capabilities. I specialize in custom jobs.
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Offline Cat Whisperer

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GB Mortar Contest Entry - CW
« Reply #3 on: August 31, 2005, 12:40:08 AM »
Thanks, Powder keg, but the real elegance of this one is in what I learned in the process.  (I really like George's design and rendition.)

I turned about 6 tubes of different lengths (one was one-caliber long and used fire crackers) and had at least 3 designs of breech plugs.  I can machine much faster and to a much better finish now compared to when I turned the parts shown - that's one of my gains in this contest.
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Tim K                 www.GBOCANNONS.COM
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Offline GGaskill

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Re: GB Mortar Contest Entry - CW
« Reply #4 on: March 02, 2009, 05:31:16 PM »
CW,
     Since we are saving this thread for the archives, can you repost the images somewhere they will stick around?
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Offline BoomLover

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Re: GB Mortar Contest Entry - CW
« Reply #5 on: March 02, 2009, 06:21:02 PM »
Since I'm more or less new to this forum, I agree, 'cause they aren't there now! I'd like to be able to go back in the old threads and see some of the stuff that has been posted, but can't open a lot of it. Thanks, CW. BoomLover
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Offline Cat Whisperer

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Re: GB Mortar Contest Entry - CW
« Reply #6 on: March 03, 2009, 12:12:14 AM »
I will look tonight (it's 6-ish am now); they're on another confuser.
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Tim K                 www.GBOCANNONS.COM
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