The Ark

Originally posted by u/Objective_Care_9401 at 2025-06-30T23:59:45Z

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Has anyone seen or heard of a Fallout style combat rifle in the works? I’m a huge nerd and fallout is one of my favorite games. A replica combat rifle would be awesome to have especially bc I have a rifleman build in fallout 76

Originally posted by u/sandshark- at 2025-06-30T23:40:04Z

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Hello! If youre reading this and have a FMK 91C please hit me up. I need some reference photos of the frame. Kits for these are pretty cheap and I'd like to hop on Fusion and get one designed and printed. Please feel free to message me if you have one. TIA

Source: https://i.redd.it/53z6a6y8h5af1.jpeg

Source: https://b.thumbs.redditmedia.com/EBlIwJ2BDSqFWmLRh23mV5qGIhmf0yZHt8dYodxtqDM.jpg

Originally posted by u/sandshark- at 2025-06-30T23:36:37Z

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[deleted]

Originally posted by u/No_Swordfish7008 at 2025-06-30T23:36:25Z

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Source: https://a.thumbs.redditmedia.com/oIYyIX6iOzo3gE4DoJ_DHaVkNwWTCjb0IfGdJZ8wvH8.jpg

Originally posted by u/MrFartyStink at 2025-06-30T23:31:39Z

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Iv printed the scarab v2 totally fine but this keeps either disconnecting from the supports at the front or rear. Polymaker pla pro 220/65 80mm/s top z distance .26. I have it orientated at a 45° like the scarab v2 but this has less surface area with the build plate than the scarab v2. How did yall print it/ orient it?

Source: https://i.redd.it/8xw7jfr8g5af1.png

Originally posted by u/Apprehensive-Mix3174 at 2025-06-30T22:04:46Z

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Originally posted by u/Ok-Blood8662 at 2025-06-30T21:50:55Z

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Was hoping I got good enough layer adhesion here, and I may have, but cracks formed at the pin holes.

Fortunately did not have this happen while firing. I noticed the cracks when inspecting the gun at my desk, flexed it, and it completely snapped.

Figured I would share as an example to others. Filament choice is super important in 3D2A. Be careful.

Source: https://i.redd.it/cm8nb5w9y4af1.jpeg

Source: https://b.thumbs.redditmedia.com/Hvop_ukpbveaGUcW1rK6eqQQ2dwiHHpLgQBXvciEnEw.jpg

Originally posted by u/OddEquipment6109 at 2025-06-30T21:35:48Z

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Can you recommend completely diy projects like FGC-9?

Originally posted by u/deezy623 at 2025-06-30T21:10:11Z

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Modified files to fit in Hoffman AR-9 Super Lower. Original files fit mil-spec AR-15 lower just fine. Both function check good after minor break in.

Originally posted by u/Froyo-Special at 2025-06-30T21:04:58Z

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Im new and need help

Originally posted by u/Froyo-Special at 2025-06-30T21:00:39Z

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Im new to this, and i need an m&p 40 for defense and i aint got time for no license shit.... dont post no stupid shit just answer the goddamn question

Originally posted by u/BiggOskee at 2025-06-30T20:54:40Z

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Been sitting on this for a while. Finally got my Foxtrot Mike build kit. Rosco 14.5" barrel, just waiting for gas block, bolt and muzzle device.

Source: https://i.redd.it/ooud9ll8o4af1.jpeg

Originally posted by u/Froyo-Special at 2025-06-30T20:43:28Z

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I was wondering since google says its the strongest filament fir 3d printing

Originally posted by u/Pale-Awareness-6650 at 2025-06-30T20:41:29Z

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I see the kits for 40s and 9s, but no 45s. Is there a beta or did someone make one already?

Originally posted by u/Admirable_Scholar_36 at 2025-06-30T19:54:59Z

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Sorry for lack of updates, finished my degree. After making a few barrels I changed the trunnion mount, rather than using pins, you can use flat bar, and file the receiving channel on the barrel to fit them. Again, this uses no existing gun parts, and you can ECM the barrel. You will need a drill press to making the screw holes in the receiver plates, but I am also working on jigs with drill bushings and printed housings to make the drilling process repeatable and accurate. Feel free to ask any questions.

Source: https://b.thumbs.redditmedia.com/RM_q2Co7K7eyfQtHT0imzGTsKa9x6MUGQcFLsV-N26U.jpg

Originally posted by u/Substantial_Disk1312 at 2025-06-30T19:36:35Z

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I saw a whole ago you could upload an STL to them and they'd serialize and print the thing and ship it to an FFL. I guess that's not a thing anymore on the website. Is it still a possibility to do or are there any other places offering the same service?

Originally posted by u/ilovedogsandtits at 2025-06-30T19:02:37Z

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Hey squad - My KAK barrel for a Nylaug build is passing on both Go and No-go gauges. Is this normal for the KAK Nylaug builds?

Originally posted by u/binaryalias01 at 2025-06-30T18:43:54Z

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[removed]

Source: https://a.thumbs.redditmedia.com/QnlCyQ1XptvoP3xqOxJY7hJ6FMMALU8tfqlg9MhH7a0.jpg

Originally posted by u/Dude_I_got_a_DWAVE at 2025-06-30T18:32:57Z

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Im developing an Auto9 prop for my old 92S. A 0.75” OD steel tube will inserted into the hole and overlap the barrel with 1mm clearance. I’ll grind a lead-in and ports prior to press fit/gluing/(pinning?) it in place. The steel tube will extend ~10mm from the end of the prop assembly. The prop will be held in place by a cross screw inside the trigger guard…..and a shoulder bolt screwed into the tip of the aluminum recoil spring guide, tapped for M4. The shoulder bolt head will prevent the prop from rotating downward during cycling. Also considering putting a cross bolt through the front web of the trigger guard.

Originally posted by u/N3oxity at 2025-06-30T17:39:45Z

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Hello, I just wanted to start this post glazing u/Pfunk117 for introducing the wackmack, one of only functioning super safe mac11 builds I have found in the sea. I have tossed hundreds of dollars into other super safe mac11 DB9 derivatives all for them not to work and destroy my barrel.

My upper is a VMAC 11".

Now for my main issue, I was using my wackmack as normal on the range and dumped 120 rounds through it for 3 days. Keep in mind, the only range ammo I used when running this gun was Remington and Blazer FMJ's. I let one of my friends try out my weapon on the range and he loaded some Winchester Full Metal Jacket Flat Nose target rounds through my gun and it exploded leaving this.

Bullet Remanent

Bullet Powder ruminants

The bullet was stuck in the barrel and the rim of the brass shell was also stuck in the chamber. I asked the RSO for a push rod to clear my barrel and they pointed something concerning to my attention after clearing the barrel. The RSO pointed out that some metal chipping in my barrel that looked like my barrel liner chipped out and flaked but I'm not certain.

Chamber View

From of gun top down view

I was going to see if I could simply remove the material sticking up, but I think I may need to swap the barrel.

chambered sim rounds with burrs

Things that I hypothesize causing this issue:

1. My friend chambered this round wrong and babied the charging handle causing an OOB.
2. The Round was chambered correctly but the issue was Winchester QC.
3. VMAC QC failed me.

I would love assistance and feedback for my next steps on what I should do from here. I would also want to know how this issue happened and what I can do to prevent this from happening (like not letting other people shoot my guns).

Source: https://a.thumbs.redditmedia.com/FWnu8op7xWKo7g4E-2YK7actM-1ID0Dbj7Gh-goCNp4.jpg

Originally posted by u/Known-Garbage-6305 at 2025-06-30T17:38:43Z

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Update: It fucking eats! Need to invest in some 20 round mags asap. The only issue I was having was a failure to fully feed which I think was caused by not having the brace properly shouldered, could have also been I have heard it likes 73 gr rounds and I was only able to get my hands on some 71s for now.

Originally posted by u/Klutzy_Ear_3897 at 2025-06-30T17:06:07Z

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Anyone know if the hp22a ever left closed beta?

Originally posted by u/sponyta2 at 2025-06-30T16:52:05Z

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Originally posted by u/Happy_Conflict9667 at 2025-06-30T16:25:12Z

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Unable to replace my printer but wanting to get into nylon and similar filaments i want to upgrade my printer. Replaced hotend with this but am still limited to 260c please help!!

Source: https://i.redd.it/rbr1qpx5c3af1.jpeg

Originally posted by u/MasterPang89 at 2025-06-30T16:05:43Z

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BCA sells their big caliber uppers now (300 Win Mag, 30-06, and 270). We need a lower design for it that takes less expensive mags. Anyone else agree? I don't have the skill to do it. XD

https://preview.redd.it/2kvhc50n83af1.jpg?width=485&format=pjpg&auto=webp&s=6cfffdab9a6a196d4b65c436ba8d0c125f8e50d0

Source: https://b.thumbs.redditmedia.com/tzXmhKPf6Q3X2pCoobStsYDbz06I1M6fFElvutEac_A.jpg