ASSRA Forum - Making/modifying lathe-bored moulds

ASSRA Forum › General › General Discussion › Making/modifying lathe-bored moulds

(Moderator Group: Moderator)

‹ Previous Topic | Next Topic ›

Page Index Toggle

Pages: 1 [2]

Very Hot Topic (More than 25 Replies)

Making/modifying lathe-bored moulds (Read 13494 times)

J.D.Steele Ex Member	Re: Making/modifying lathe-bored moulds Reply #15 - Jun 5^th, 2007 at 6:46pm	Print Post
	Cat_Whisperer wrote on Jun 5^th, 2007 at 1:28pm: Jim_Borton wrote on Jun 4^th, 2007 at 8:21pm: Use kerosene on cast iron That makes perfect sense - it's commonly used when tapping CI ! Why didn't I think of that? (DON'T ANSWER!) Back when I worked the nuclear bidness, we called it having a DF Attack. The D stands for Dumb of course, the F stands for.............I can't say the word here........but I tell My Daughter it stands for Fool, to spare her the more explicit description............I have had many of these over the years and I know the feeling all too well..............it don't get no better, unfortunately. Regards, Joe


	IP Logged

DoubleD Oldtimer Offline Posts: 635 Location: Cut Bank Joined: Feb 14^th, 2006	Re: Making/modifying lathe-bored moulds Reply #16 - Jun 6^th, 2007 at 1:25am	Print Post
	Over on the British Militaris Forum they have a discussion on this topic going also. The approach is a little different. The are boring in a milling maching and using a rotary table. They have pictures of tooling and set ups. (You need to *Login* or *Register* to view media files and links) You may have to be registered to get on that board, they like this board and a lot of other boards have been hit by spammers. I do believe they do allow lurkers to look only.

	Douglas, Ret.
	IP Logged

Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3873 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Making/modifying lathe-bored moulds Reply #17 - Jun 6^th, 2007 at 6:07am	Print Post
	DD - thanks! (I have a mil and have considered using the rotary table for this type of operation - in addition to using a double acting vice and simply using a boring bar.)

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
	WWW IP Logged

RJM Full Member Offline Posts: 212 Location: State of Confusion Joined: Oct 15^th, 2006	Re: Making/modifying lathe-bored moulds Reply #18 - Jun 6^th, 2007 at 6:17am	Print Post
	Cat, Another suggestion: Get Guy Lautard's "Machinist's Bedside Reader" series of books. In one of them Guy discusses making molds, and a quicker setup for centering the cavity. Regards, Ron


	IP Logged

Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3873 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Making/modifying lathe-bored moulds Reply #19 - Jun 6^th, 2007 at 8:33am	Print Post
	Thanks, I'd heard of that book, so looks like I'll have to chase one down.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
	WWW IP Logged

DoubleD Oldtimer Offline Posts: 635 Location: Cut Bank Joined: Feb 14^th, 2006	Re: Making/modifying lathe-bored moulds Reply #20 - Jun 6^th, 2007 at 10:42am	Print Post
	Tim, don't we have a link to Guy Lautard on the cannon list?

	Douglas, Ret.
	IP Logged

38_Cal Frequent Elocutionist Offline Posts: 2247 Location: Montezuma, Iowa Joined: Apr 27^th, 2005	Re: Making/modifying lathe-bored moulds Reply #21 - Jun 6^th, 2007 at 12:48pm	Print Post
	Shameless plug for my employer here: Brownells, (You need to *Login* or *Register* to view media files and links), has all three volumes, and flat rate U.S. shipping. Enter "Lautard" in the Search block on the website. David Montezuma, IA

	David Kaiser Montezuma, IA
	IP Logged

Asst Ex Member	Re: Making/modifying lathe-bored moulds Reply #22 - Jun 7^th, 2007 at 7:09am	Print Post
	Buy the set of three, I did and will NEVER regret it. (You need to *Login* or *Register* to view media files and links)


	IP Logged

J.D.Steele Ex Member	Re: Making/modifying lathe-bored moulds Reply #23 - Jun 7^th, 2007 at 8:49am	Print Post
	What Keith said, and plenty of it! Regards, Joe


	IP Logged

Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3873 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Making/modifying lathe-bored moulds Reply #24 - Jun 12^th, 2007 at 9:28pm	Print Post
	I appreciate the endorsements - makes the decision to part with money easier knowing the reputation of quality! Still at a crude level here; fist pix is of home-made boring bar holder and second of FIRST attempts at making some lathe cutters for making a cavity. Boring bar holder (You need to *Login* or *Register* to view media files and links) Lathe tools (You need to *Login* or *Register* to view media files and links)

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
	WWW IP Logged

Paul_F. Ex Member	Re: Making/modifying lathe-bored moulds Reply #25 - Jun 12^th, 2007 at 9:46pm	Print Post
	Those lathe boring bars, and the holder, look very nicely done! Is that first boring bar a commercial holder? Carbide insert, I assume? I've been looking for one simillar that I can afford for a while... too cheap to pony up so far. Paul F.


	IP Logged

Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3873 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Making/modifying lathe-bored moulds Reply #26 - Jun 12^th, 2007 at 10:46pm	Print Post
	The carbide insert is in a heavy-metal 1/4" dia. boring bar (ebay purchase). The holders are 1144 stress proof 'rounds' which are scrap from work (read: free). The cutters are A2 3/8 diameter milled almost 1/2 way down, rotated about 5 degrees. And poorly heat treated in a 5C collet while turning with a tourch. (When I get serious about grinding one, I'll have it done professionally - but at this stage everything I do is a learning experience whether it succedes on the first or 10th try.) I did learn from the rounded one that I needed a bunch more clearance under the nose itself - might warrent a nose-tip only cutter and a cutter for the ogive. Still in the experimenting stage, piece with first cuts is still chucked up.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
	WWW IP Logged

J.D.Steele Ex Member	Re: Making/modifying lathe-bored moulds Reply #27 - Jun 12^th, 2007 at 11:14pm	Print Post
	Cat, I can tell from looking at your tools that you're the sort of fellow that will really enjoy Guy Lautard's books. I started buying them back about 20 yrs ago or more as I remember, and eagerly await each new one. The guy is not a gunsmith per se nor is he what I call a toolmaker, but his writing is the stuff of genius IMO. He takes an eminently practical approach to almost every challenge and shows and/or suggests ways for the average fellow to accomplish wonders using fairly unsophisticated methods and tooling. Among other things of interest is a description of how to color-case-harden, in a backyard oven, carbon steel such as the Sharps 1878 Borchardt action he describes barreling to 30-40. His reprinting of the famous J.M. Pyne stories by Lucian Carey have become modern classics and his own fiction writing is also entertaining, or at least it was for me. Money WELL spent IMO, regards, Joe


	IP Logged

Page Index Toggle

Pages: 1 [2]

‹ Previous Topic | Next Topic ›

« Board Index ‹ Board Top

Top

ASSRA Forum » Powered by YaBB 2.6.12!
YaBB Forum Software © 2000-2024. All Rights Reserved.

Valid XHTML

Valid CSS

Powered by Perl

Source Forge

Page completed in 0.5934 seconds.