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91
Progress / Re: Firing Pin
« Last post by bruski on September 19, 2021, 04:57:10 PM »
Sparky,
 I tested this new bolt design by cutter and they worked great. The roll pin protrusion that was present in the making was machined off flush with the side of the bolt.

bruski
92
Progress / Re: Firing Pin
« Last post by Sparky_NY on September 19, 2021, 03:25:55 PM »
I'm no longer to run machinery so , I've been setting at my computer making design changes to the RG-G
This image shows a very simple firing pin modification that has tested well.
It's a 1/16 flat firing pin with a .030 chisel land


For some strange reason your drawing does not show most of the time.    I only seen the drawing appear once out of 4 times I looked.    I sent Dave a email letting him know of the issue.
93
Progress / Re: Firing Pin
« Last post by Sparky_NY on September 19, 2021, 02:29:31 PM »
 Nice to hear from you Cutter !

I used the flat , ruger style, firing pins in my .22 gat and they worked out well.    I like your addition of the roll pin,  I used a staking tool on the slot to retain mine, same as ruger.

No dimensions and I wonder if the firing pin will impact outside edge of the cartridge with the roll pin where it is located?
94
Progress / Firing Pin
« Last post by Cutter on September 19, 2021, 01:23:52 PM »
 I'm no longer to run machinery so , I've been setting at my computer making design changes to the RG-G
This image shows a very simple firing pin modification that has tested well.
It's a 1/16 flat firing pin with a .030 chisel land
95
Gunsmithing/Kit builds / Re: Gatling gun build
« Last post by bruski on August 04, 2021, 05:37:54 PM »
HI Sparky,
  Nice to hear from you again. I haven't done to much in the machine shop lately, but hopefully sooner than later.

bruski
96
Gunsmithing/Kit builds / Re: Gatling gun build
« Last post by Sparky_NY on August 03, 2021, 06:40:05 AM »
Welcome back Bruski !    Missed having you around.
97
Gunsmithing/Kit builds / Re: Gatling gun build
« Last post by bruski on August 01, 2021, 10:52:04 PM »
Nice work Jones. I have been away for a while and have some ketching up to do. The wife talked me into having a smaller new house built before the lumber prices went through the roof. It's finished now but the temperature outside is 117 degrees and to hot to do any moving.
bruski
98
Gunsmithing/Kit builds / Re: Gatling gun build
« Last post by Sparky_NY on July 02, 2021, 07:39:46 AM »
Very interesting, thanks for joining the forum.  I am learning a lot from your posts.  Thank you!


Frank

Yes, thanks much for joining !      All the info has been extremely interesting.
99
Gunsmithing/Kit builds / Re: Gatling gun build
« Last post by JonesL on June 30, 2021, 09:10:47 PM »
No Sparky, my Bruce feed cartridge pendulum has to be nudged over. If the detent spring is too soft it may not hold to one side or the other and cause feeding problems. We are after all, just holding the rounds in the "T"-slots by their rims and counting on gravity and small amount of shaking to keeping them dropping.
I think I read somewhere that some Gatlings shipped with Bruce feed mechanisms were eventually sent back to Colt and refitted with hoppers for the "straight feed case" (stick magazine).

All Gatling's gravity feed systems; Broadwell Drum, straight feed cases and L.F. Bruce gravity feeds were notorious for not working once they exceeded a point in muzzle depression or elevation. Accles solved that problem with a fully mechanical feed design but they're like a giant clockwork inside and sensitive to dents and dings anywhere in the outer surfaces "causing derangement of the feeding mechanism" as they say in one of my Ordnance Memoranda.
That and the large brass drum sitting on top made for a very inviting target for opposing marksmen.
100
Gunsmithing/Kit builds / Re: Gatling gun build
« Last post by JonesL on June 30, 2021, 08:46:46 PM »
Thanks for the welcome Frank.
I've only got one or two tricks I'd like to keep to myself but most everything else is stuff that was shared with me by old timers. I'm just passing along their kindness and generosity. Over the years I've picked up techniques on everything from patinas and weathering to set-ups and machining. As a result I seem to manage to figure out 5 or 6 ways of setting up or holding parts instead of the obvious 1 or 2. Opens up a whole bunch of associated tasks most people think are impossible for the average machinist.
I'm constantly amazed at the number of parts I'm told I can't make. I just wish the naysayers would have let me know before I made, installed and have the part working.

Another love is old Harleys. Here's a 1921 board tracker that I putt around on when the weather's nice. Bought the original bike in 1998. I got it out of storage and began what's been a 6 year restoration / build. All the original parts I took off have been preserved and put away.
I replaced the original pocket valve motor with one from a 1971 Harley Sportster but I did it by modifying the engine to fit the frame, not hacking up the frame to take the motor. Done that way, I can have the bike back to completley original condition in about a day.
Modern brakes let me get stopped. All new cotton-wrapped wiring keeps the vintage look along with details like using friction tape instead of plastic electrical tape.
Where I've needed extra room, like getting the drum brakes in the front end and working right, I duplicated the original fork castings, just with wider dimensions.
Knowing a trick or two about metal finishing and patinas let me keep an original "barn find" look that I find more interesting than the museum-grade restorations that some older bikes have gone through. Between its 100 year old frame and my 76 year old frame, we don't go very far or very fast but it definitely gets thumbs-ups and smiles whenever I take it out.

https://ibb.co/Yb2L3FS
https://ibb.co/PDwdNrz
https://ibb.co/NZPdJRd
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