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7/10/2025 6:48:29 PM EDT
[#1]
I found Chinn's volume 5 of the machinegun available on archive.org. Actually all 5 volumes are there.

This link is applicable.
https://archive.org/details/TheMachineGunVolume5ByGeorgeMChinn/page/n79/mode/2up
WhyTanFox : "the world is exponentially more complicated every decade, yet at the same time it has become increasingly simple to demonstrate your ignorance to a large audience. "
7/10/2025 9:47:25 PM EDT
[#2]
Quote History
Originally Posted By belted_guns:
Because I can, i tested getting a metal printed bolt. It works. I am gonna get 5 more.
Now I am going to work on the firing pin assembly. https://www.ar15.com/media/mediaFiles/256915/1000018337_jpg-3584086.JPG
View Quote

ooo thats sexy as all get out
TX_M1:
Boogaloo side quest:  Drink so much Monster energy and vodka you think your 1999 Camry is a time travelling Delorean and commit fashion crimes while shouting gag me with a spoon and totally way, way too often.
7/10/2025 11:19:12 PM EDT
[#3]
Quote History
Originally Posted By Fat_McNasty:
Where did you guys get your metal parts printed? I need to get the b3 cocking ramp made.
View Quote

I am using this Chinese company. In3dtec.com
I got the bolt carrier and cam pin done for about $60 each out of 316stainless glass beaded and polished. I think that is a pretty decent price.
7/10/2025 11:32:23 PM EDT
[#4]
not bad at all
TX_M1:
Boogaloo side quest:  Drink so much Monster energy and vodka you think your 1999 Camry is a time travelling Delorean and commit fashion crimes while shouting gag me with a spoon and totally way, way too often.
7/12/2025 3:56:59 PM EDT
[#5]
Welp, between the 1st metal print and my second,  that Chinese company put a gun print ban banner up. I wonder if I will get my order. I will let ya know next week.
7/14/2025 7:18:21 PM EDT
[#6]
Quote History
Originally Posted By Postal0311:
I have the whole thing made minus the bolt carriers.  I've been completely unable to get them to print correctly.
View Quote

@postal0311
You get the carrier et al completed?
7/23/2025 6:46:49 PM EDT
[#7]
No, I haven't really worked on it.

Found my micro-lathe doesn't have the power to turn the bolts down like I wanted.  And the private property I was going to shoot this on got sold.

Other than functional tweaking, all I should need to do is making the bolts/firing pins and cam pins.  But I have felt no motivation to do so as I don't know where I would shoot it.
WTB: Steel Bodied Surefire Trainer
7/23/2025 8:46:11 PM EDT
[Last Edit: efxguy][Edited] [#8]
Sorry, a little off topic, but are there any plans or anyone working on a pistol caliber version?

Of course, in light of the expense to fun ratio, .22 would be the hot ticket.

Well, I can dream, right?
7/24/2025 10:45:38 AM EDT
[#9]
Quote History
Originally Posted By Postal0311:
No, I haven't really worked on it.

Found my micro-lathe doesn't have the power to turn the bolts down like I wanted.  And the private property I was going to shoot this on got sold.

Other than functional tweaking, all I should need to do is making the bolts/firing pins and cam pins.  But I have felt no motivation to do so as I don't know where I would shoot it.
View Quote

@postal0311
I hear ya. I am waiting on the bolt carrier (which i am having printed out of polished stainless steel, and Nopal's striker set.)
I also agree with you on the where to shoot. If we had not moved "to the TX country" I probably wouldn't have started this. We used to live in an HOA.
I am probably about 30 days out from test firing mine.
My long term objective is to re-design the delinker for M27 links. It gives me some mental fun on the design.
If it ever finishes.
7/24/2025 10:50:29 AM EDT
[#10]
Quote History
Originally Posted By efxguy:
Sorry, a little off topic, but are there any plans or anyone working on a pistol caliber version?

Of course, in light of the expense to fun ratio, .22 would be the hot ticket.

Well, I can dream, right?
View Quote

True, but since we do not have the design files and only the print files, it will require a 100% ground up redesign, from scratch.
Nopal's ability to design, model, and test, is exceptionally remarkable. All done inside an animation only modeling program. Which does not even have a stp export function.
7/24/2025 5:37:36 PM EDT
[#11]
Quote History
Originally Posted By belted_guns:

True, but since we do not have the design files and only the print files, it will require a 100% ground up redesign, from scratch.
Nopal's ability to design, model, and test, is exceptionally remarkable. All done inside an animation only modeling program. Which does not even have a stp export function.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By belted_guns:
Originally Posted By efxguy:
Sorry, a little off topic, but are there any plans or anyone working on a pistol caliber version?

Of course, in light of the expense to fun ratio, .22 would be the hot ticket.

Well, I can dream, right?

True, but since we do not have the design files and only the print files, it will require a 100% ground up redesign, from scratch.
Nopal's ability to design, model, and test, is exceptionally remarkable. All done inside an animation only modeling program. Which does not even have a stp export function.
There is a ton of talent to be able to design even in CAD programs, much respect to Nopal.

I guess I may have to satisfy my retirtement project dreams with one of those .22 machinist drawings sets sold in the back of magazines.
7/25/2025 11:28:22 AM EDT
[#12]
Quote History
Originally Posted By efxguy:
There is a ton of talent to be able to design even in CAD programs, much respect to Nopal.

I guess I may have to satisfy my retirtement project dreams with one of those .22 machinist drawings sets sold in the back of magazines.
View Quote

Haha I remember those ads, along with the great shotguns news newspaper.  Used to spend hours digging through all that opportunity.
8/16/2025 8:28:01 PM EDT
[Last Edit: withoutremorse42][Edited] [#13]
Nopel agreed to an interview for an article on Thetruthaboutguns.  I've been following the m1337 for a while, absolutely love what nopel is doing.  I need one of these on my Hilux!

If any of you printers are in NW Oregon and need a private test range for yours, HMU
8/17/2025 1:49:51 PM EDT
[Last Edit: belted_guns][Edited] [#14]
Quote History
Originally Posted By withoutremorse42:
Nopel agreed to an interview for an article on Thetruthaboutguns.  I've been following the m1337 for a while, absolutely love what nopel is doing.  I need one of these on my Hilux!

If any of you printers are in NW Oregon and need a private test range for yours, HMU
View Quote

Is the interview available or forthcoming. I am close to being able to live fire mine. But still having an issue with carriers/bolts randomly locking up.
8/17/2025 1:55:37 PM EDT
[Last Edit: belted_guns][Edited] [#15]
Anyone else having random lockups of the rotating mechanism and carrier/bolts seemingly to lockup?

@jestertoo
@fat_mcnasty
@postal0311

I have found, trying different things, that it occurs 100% if I have the gun in a vertical up with barrels pointing up. It will rotate around and then one carrier assembly, randomly, will hard lock to rotation in the clockwise and a different position in the counter clockwise.  If I then turn the gatling so it is sitting vertical, on the barrels, then rotated, I can "unlock" the jam.
Is this happening to anyone else?
Picture of the assembly sans any strikers.
Attached File
8/17/2025 8:00:07 PM EDT
[#16]
Quote History
Originally Posted By belted_guns:
Anyone else having random lockups of the rotating mechanism and carrier/bolts seemingly to lockup?
View Quote


I had a similar issue.
I tried one bolt/carrier group at a time until I figured out which one it was. Then I slightly rotated the barrel in the cluster clamp slightly one way or the other until it quit doing it.

I have all my bolts/carriers numbered to the cluster so that they all stay aligned.
WhyTanFox : "the world is exponentially more complicated every decade, yet at the same time it has become increasingly simple to demonstrate your ignorance to a large audience. "
8/17/2025 8:02:30 PM EDT
[#17]
I blew apart the "long" muzzle ring, and didn't really like the shorter muzzle ring.
BUT
I'm kind of digging this

WhyTanFox : "the world is exponentially more complicated every decade, yet at the same time it has become increasingly simple to demonstrate your ignorance to a large audience. "
8/18/2025 10:01:32 PM EDT
[#18]
Quote History
Originally Posted By belted_guns:
Anyone else having random lockups of the rotating mechanism and carrier/bolts seemingly to lockup?

@jestertoo
@fat_mcnasty
@postal0311

I have found, trying different things, that it occurs 100% if I have the gun in a vertical up with barrels pointing up. It will rotate around and then one carrier assembly, randomly, will hard lock to rotation in the clockwise and a different position in the counter clockwise.  If I then turn the gatling so it is sitting vertical, on the barrels, then rotated, I can "unlock" the jam.
Is this happening to anyone else?
Picture of the assembly sans any strikers.
https://www.ar15.com/media/mediaFiles/256915/1000019213_jpg-3609184.JPG
View Quote

yup fighting the same thing, I'm swapping to a 1mm dia wire spring. I'm thinking the 1.5mm is just a bit much and causing the bolt to lift and jam the bolt bearing into the side of the track. Look into the receiver and check right in front of the removable ramp.
TX_M1:
Boogaloo side quest:  Drink so much Monster energy and vodka you think your 1999 Camry is a time travelling Delorean and commit fashion crimes while shouting gag me with a spoon and totally way, way too often.
8/18/2025 10:50:07 PM EDT
[#19]
Quote History
Originally Posted By belted_guns:
Anyone else having random lockups of the rotating mechanism and carrier/bolts seemingly to lockup?

@jestertoo
@fat_mcnasty
@postal0311

I have found, trying different things, that it occurs 100% if I have the gun in a vertical up with barrels pointing up. It will rotate around and then one carrier assembly, randomly, will hard lock to rotation in the clockwise and a different position in the counter clockwise.  If I then turn the gatling so it is sitting vertical, on the barrels, then rotated, I can "unlock" the jam.
Is this happening to anyone else?
Picture of the assembly sans any strikers.
https://www.ar15.com/media/mediaFiles/256915/1000019213_jpg-3609184.JPG
View Quote


What did the printed bolts set you back?

And I have a spare stainless steel ramp if some one needs one.

TX_M1:
Boogaloo side quest:  Drink so much Monster energy and vodka you think your 1999 Camry is a time travelling Delorean and commit fashion crimes while shouting gag me with a spoon and totally way, way too often.
8/20/2025 11:08:04 PM EDT
[#20]
I found the cause of the semi random crank lockups.
I was testing using carriers with uncut bolts, uncut fire pins, and no strikers. I did not want to accidentally fire a round. The lockups occur when the barrels are pointed up and the fire pins slide back far enough to let the cam pin turn. This will randomly catch going forward on part of the bolt assembly.
See the picture.
Attached File

The cure is simply to use cut bolts, fire pins, and strikers.
To make sure I can test the cycling I am going to use pins with the front ground off so no way to touch the back of a round.
I will let you know how it goes.
Oh, and I ordered and will have next week the Aluminum front spindle I had printed.
I am slowly ordering the parts made from metal. The next set will be the clutch parts. That is a design that hates any variance.
8/20/2025 11:13:10 PM EDT
[#21]
Quote History
Originally Posted By jestertoo:
I blew apart the "long" muzzle ring, and didn't really like the shorter muzzle ring.
BUT
I'm kind of digging this

https://www.ar15.com/media/mediaFiles/106939/PXL_20250815_211151375__1_-3609386.jpg
View Quote

I like that. I am videoing my first live fire. Part of me wants to see if I blow up the long front, but it makes more sense to do what you did just so I can at least see if it cranks without worrying about blowing the front.
Then after it works, definitely video slomo the front destruction.
Thanks for showing me. I am going to copy you.
8/20/2025 11:58:40 PM EDT
[#22]
Quote History
Originally Posted By Fat_McNasty:


What did the printed bolts set you back?

And I have a spare stainless steel ramp if some one needs one.

View Quote

About $60 per carrier and pin. If you order, use a generic name like test part because they state no gun parts.
8/23/2025 5:57:57 PM EDT
[Last Edit: belted_guns][Edited] [#23]
Hey, no more barrel locks. Got the bolts and pins cut and installed.  This set of pins are to test feeding and function and have the pin ends ground off so no touchy the live round testing.
Kind of neat hearing the strikers firing.
With metal carriers and such total weight is up 31.5 lbs.
Attached File
8/25/2025 10:18:23 PM EDT
[#24]
Got the AL front spindle today and installed it into the delinker.
No more double feeds and jams.
Tested a 42 round set. Easy crank, consistent spool.
Attached File
Attached File
Attached File
8/26/2025 10:04:29 PM EDT
[#25]
How much did the spindle set you back?  US or off-shore?
A firearm is like a parachute, if you need one but don't have one, you'll probably never need one again. IG @jimstagramguns
8/26/2025 10:32:14 PM EDT
[#26]
Quote History
Originally Posted By AFCarbon15:
How much did the spindle set you back?  US or off-shore?
View Quote

About $275 Chi-Na
9/2/2025 11:05:51 AM EDT
[#27]
Quote History
Originally Posted By Fat_McNasty:


What did the printed bolts set you back?

And I have a spare stainless steel ramp if some one needs one.

View Quote


@Fat_McNasty I will take it for what you have in it plus the ride, PM sent.
9/2/2025 5:52:46 PM EDT
[#28]
Quote History
Originally Posted By belted_guns:
I found the cause of the semi random crank lockups.
I was testing using carriers with uncut bolts, uncut fire pins, and no strikers. I did not want to accidentally fire a round. The lockups occur when the barrels are pointed up and the fire pins slide back far enough to let the cam pin turn. This will randomly catch going forward on part of the bolt assembly.
See the picture.
https://www.ar15.com/media/mediaFiles/256915/1000019267_jpg-3611076.JPG
The cure is simply to use cut bolts, fire pins, and strikers.
To make sure I can test the cycling I am going to use pins with the front ground off so no way to touch the back of a round.
I will let you know how it goes.
Oh, and I ordered and will have next week the Aluminum front spindle I had printed.
I am slowly ordering the parts made from metal. The next set will be the clutch parts. That is a design that hates any variance.
View Quote



Just spitballing here, would there be any way to use a bolt carrier cotter pin to retain the firing pin and bolt like it does in an AR15?  I would be nice to be able to tip the gun up for storage or transport without the bolts locking it up.
9/2/2025 6:44:38 PM EDT
[#29]
Quote History
Originally Posted By BusaBoy2009:



Just spitballing here, would there be any way to use a bolt carrier cotter pin to retain the firing pin and bolt like it does in an AR15?  I would be nice to be able to tip the gun up for storage or transport without the bolts locking it up.
View Quote


If you assemble the bolts completely, they don't lockup.
His was locking up because he didn't have all the parts in them.
WhyTanFox : "the world is exponentially more complicated every decade, yet at the same time it has become increasingly simple to demonstrate your ignorance to a large audience. "
9/5/2025 3:15:40 PM EDT
[#30]
Quote History
Originally Posted By belted_guns:

Is the interview available or forthcoming. I am close to being able to live fire mine. But still having an issue with carriers/bolts randomly locking up.
View Quote


Forthcoming.  It's waiting on me really, nopal is ready.  I'm catching up on a backlog of articles since I went commercial fishing for the summer, and need to finalize a list of quality questions
9/5/2025 8:20:16 PM EDT
[Last Edit: Alien][Edited] [#31]
I thought this thread was going to be about this project that I just saw an ad for.

https://moab-kit.gatlingtommy.com/


9/9/2025 1:58:23 PM EDT
[#32]
im really curious what it would cost to send each of the 3d printed pieces to chyna to have them made from steel
9/17/2025 9:09:06 AM EDT
[#33]
Quote History
Originally Posted By withoutremorse42:
im really curious what it would cost to send each of the 3d printed pieces to chyna to have them made from steel
View Quote


Or maybe lost PLA cast some of the large pieces out aluminum.
Even though it may seem that the OP is mentally disabled, calling him a "retard" is a personal attack. -DKProf
This is bud light marketing, meets Ocean Gate engineering with Sig public relations level of quality. -RC03
9/19/2025 3:28:43 PM EDT
[Last Edit: belted_guns][Edited] [#34]
Finally got everything together and tested.
Found a good spec for springs that will fire all types of ammo: 855, tracer, 193, 223.
OD0.420 x H1.250 x dia0.048in.
@fat_mcnasty
@jestertoo
Attached File
9/23/2025 12:34:51 AM EDT
[#35]
Quote History
Originally Posted By belted_guns:
Finally got everything together and tested.
Found a good spec for springs that will fire all types of ammo: 855, tracer, 193, 223.
OD0.420 x H1.250 x dia0.048in.
@fat_mcnasty
@jestertoo
https://www.ar15.com/media/mediaFiles/256915/1000019635_jpg-3626754.JPG
View Quote


You sir are a gentleman and a scholar, posts like this are why arfcom needs a like button.
9/23/2025 12:43:13 AM EDT
[#36]
Quote History
Originally Posted By withoutremorse42:
im really curious what it would cost to send each of the 3d printed pieces to chyna to have them made from steel
View Quote


I had the striker cam printed in cobalt-chrome (harder than stainless, cheaper than titanium) and for funziez I put the model for the main housing in there and it came to $3586 for one in stainless, $7465 for one in titanium.   This was before shipping, however if you get multiples of a piece the price drops due to the setup being a chunk of the cost, so if one was to order 2 titanium receivers, the cost drops to a very affordable $6819/ea
9/28/2025 5:11:39 PM EDT
[#37]
Quote History
Originally Posted By BusaBoy2009:


You sir are a gentleman and a scholar, posts like this are why arfcom needs a like button.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By BusaBoy2009:
Originally Posted By belted_guns:
Finally got everything together and tested.
Found a good spec for springs that will fire all types of ammo: 855, tracer, 193, 223.
OD0.420 x H1.250 x dia0.048in.
@fat_mcnasty
@jestertoo
https://www.ar15.com/media/mediaFiles/256915/1000019635_jpg-3626754.JPG


You sir are a gentleman and a scholar, posts like this are why arfcom needs a like button.



https://msdspring.com/stocksprings/pndetails.asp?pn=C420-1250-21250
Anyone want to go in on a set?
WhyTanFox : "the world is exponentially more complicated every decade, yet at the same time it has become increasingly simple to demonstrate your ignorance to a large audience. "
9/28/2025 10:23:22 PM EDT
[#38]
I finally made my first complete bolt carrier group.

Only 5 more to go.

WTB: Steel Bodied Surefire Trainer
9/30/2025 7:01:26 PM EDT
[#39]
Quote History
Originally Posted By Postal0311:
I finally made my first complete bolt carrier group.

Only 5 more to go.

View Quote

Excellent. They are tedious. You will need fairly strong springs.
I also made a set of dummy fire pins so I could work on the feeding issues without worrying about setting a round off. Of make a set of dummy rounds.
10/2/2025 6:11:54 PM EDT
[#40]
Quote History
Originally Posted By jestertoo:



https://msdspring.com/stocksprings/pndetails.asp?pn=C420-1250-21250
Anyone want to go in on a set?
View Quote


I bought them in bulk as it was the same cost as buying a much smaller amount.  According to the tracking number I should have them in hand early next week.  If anyone wants a set of 6 I can do that for $20 plus a small USPS envelope and the ride which should be less than half what they want for them. Anyone interested can PM me.
10/4/2025 2:45:40 PM EDT
[Last Edit: belted_guns][Edited] [#41]
I made a rail kit for my 1337. If anyone wants the step or alibre file let me know.
Attached File
Attached File

Also you can sort of see the stainless Safe ramp switch. With the heavy springs, you are gonna want a hard ramp switch.
10/4/2025 5:15:59 PM EDT
[#42]
Quote History
Originally Posted By belted_guns:
I made a rail kit for my 1337. If anyone wants the step or alibre file let me know.
https://www.ar15.com/media/mediaFiles/256915/1000020069_jpg-3635700.JPGhttps://www.ar15.com/media/mediaFiles/256915/1000020072_jpg-3635701.JPG
Also you can sort of see the stainless Safe ramp switch. With the heavy springs, you are gonna want a hard ramp switch.
View Quote


That's cool! I will take the step file if you don't mind
10/4/2025 6:16:32 PM EDT
[#43]
Has anyone found a printable feed chute link that could work with these?
10/5/2025 12:14:22 AM EDT
[#44]
Quote History
Originally Posted By BusaBoy2009:


That's cool! I will take the step file if you don't mind
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By BusaBoy2009:
Originally Posted By belted_guns:
I made a rail kit for my 1337. If anyone wants the step or alibre file let me know.
https://www.ar15.com/media/mediaFiles/256915/1000020069_jpg-3635700.JPGhttps://www.ar15.com/media/mediaFiles/256915/1000020072_jpg-3635701.JPG
Also you can sort of see the stainless Safe ramp switch. With the heavy springs, you are gonna want a hard ramp switch.


That's cool! I will take the step file if you don't mind

It will be up on thingiverse.com tomorrow. I will report here when it is live.
10/5/2025 12:15:28 AM EDT
[#45]
Quote History
Originally Posted By BusaBoy2009:
Has anyone found a printable feed chute link that could work with these?
View Quote

I think Nopel is working on it. He talks a bit about it on his website.
10/5/2025 1:00:12 AM EDT
[#46]
Quote History
Originally Posted By BusaBoy2009:
Has anyone found a printable feed chute link that could work with these?
View Quote


Answered my own question, here is a link:

Feed chute

Print at 98-99% scale for correct dimensions to fit the M1337 feed opening
10/6/2025 7:39:24 PM EDT
[Last Edit: belted_guns][Edited] [#47]
Quote History
Originally Posted By belted_guns:

It will be up on thingiverse.com tomorrow. I will report here when it is live.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By belted_guns:
Originally Posted By BusaBoy2009:
Originally Posted By belted_guns:
I made a rail kit for my 1337. If anyone wants the step or alibre file let me know.
https://www.ar15.com/media/mediaFiles/256915/1000020069_jpg-3635700.JPGhttps://www.ar15.com/media/mediaFiles/256915/1000020072_jpg-3635701.JPG
Also you can sort of see the stainless Safe ramp switch. With the heavy springs, you are gonna want a hard ramp switch.


That's cool! I will take the step file if you don't mind

It will be up on thingiverse.com tomorrow. I will report here when it is live.

Here is the1337 Rail mount thingiverse link to the stp, stl files. You should be able to open the step file and make direct edits, or just print it.Attached File
10/6/2025 9:06:12 PM EDT
[#48]
Quote History
Originally Posted By belted_guns:

Here is the1337 Rail mount thingiverse link to the stp, stl files. You should be able to open the step file and make direct edits, or just print it.https://www.ar15.com/media/mediaFiles/256915/1000020113_jpg-3637237.JPG
View Quote



10/18/2025 8:45:22 PM EDT
[#49]
Finally finished mine.  Passed a function check and fed and ejected dummy rounds just fine.
WTB: Steel Bodied Surefire Trainer
10/18/2025 9:37:54 PM EDT
[#50]
Quote History
Originally Posted By Postal0311:
Finally finished mine.  Passed a function check and fed and ejected dummy rounds just fine.
View Quote

Nice. When you live fire, try 6 rd belts to see if your fire pins are firing all six barrels.

The delinker fully loaded is around 12rds. That is where I am randomly having issues.

6rds seems fine.

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