Anyone ever done this?
>>65261856you used metallic solder on a plastic print? no because it probably won't bond, and you can just filament solder print cracks. also don't print guns out of petg, it doesn't work well for them.
wtfdo they even make solder that melts at under 400F? that shit won't adhere to anything.why wouldn't you use some kind of two-part expoxy or actual PETG... i dont know anything about plastics or printing btw
>>65261856>PETG VZ61 LowerReally dude?
>>65262157>filament solder print cracksNot PETGCF the plastic doesn't bond while melting, and the solder does the job, glue is the nono from my exp
>>65262372Its really light but it feels solid as a rockPA6 was my other choice, but I dont have the printer yetIts PETGCF I think the solder only binded to the carbon fibers
>>65262235Bi52 solder has a flow point just below the boiling point of water, and there's a couple others that are in the 300F and under range. None of them will bond with plastic because that's not how solder works, tho.
>>65262402carbon or glass fiber makes the plastic weaker, it's required for nylon for dimensional stability but worse for everything else, you don't know what you're doing and may hurt yourself. it already broke. you're also doing it wrong if you can't fuse fresh plastic of the same type no matter what inclusions it contains but that's beside the point.
>>65261856No nigga solder only bonds to hot metal. you dumb nigger. Use epoxy or print a new one
>mfw print tards
Real talk: Why are 3d printerfags so fucking retarded? Like every time I google some 3d printing resource it directs me to an r/liberalgunowners or socialist rifle association post? It's like they have enough IQ to rotate shapes in their head but have zero common sense
>>65262485>it already broke.No it did not, there was a minor print error so I welded a small fragment of the same material with metallic solder. The flat piece is where the spring for the bolt stop sits.When the upper is on, most of the stress is on the steel upper. There is a possibility of cracking during fire stress, I will wear safety gear.
>>65262491Do you know how much cheaper it is than welding or casting/forging steelI could make 400 rifles that each last 1500 rounds for the cost of a few steel ones
>>65262546>I weldedNigga no. You did not weld anything. You have a fundamental misunderstanding of the processes you're working with. There is zero fucking fusion, penetration between those materials you're working with. >>65262557>I could make 400 rifles clearly not. You couldn't even make 1
>>65262557dude, just make a Luty... I'll drop the damn PDF right now. Also solder does not work on plastic.
>>65262557>I could make 400 rifles that each last 1500 roundsYou can not. If you could, you wouldn't be asking such a stupid fucking question. A functional rifle, even a 3d printed one has tons of steel parts, like fucking barrels. You've never made a rifle period, much less one that can fire 1500 rounds.>for the cost of a few steel onesA psa is 400 dollars. Are you 13 years old?
>>65262571>There is zero fucking fusion, penetration between those materials you're working with.I was using the term loosely>clearly not. You couldn't even make 1Nevermind you are retarded
>>65262577>solder does not work on plastic.Its literally holding the spring on my lower this second
>>65262512They're not allowed near real guns so they've never seen a real proper one that works properly.>>65262402>Petgcf and Cf6Uhhm I use nylon carbon fiber and anneal it without issue.>Too cheap to get proper printer.>Too retarded to print the parts to make the printer nylon carbon fiber capable>Can't do proper nylon carbon fiber.>Can't anneal.Yeah you're retarded.
>>65262613>>65262615Bro... I can't even. I literally cannot even
>>65262402The solder didn't bond to shit retard. Solder only bonds to metal
>>65262578>If you could, you wouldn't be asking such a stupid fucking question>have any of you ever done thisWhat the fuck are you babbling about
>>65262615I used to have a plastic container top that I would solder things on since I could clearly see when a bit was dripping off of whatever I was soldering (usually relatively bigger things like a switch onto a wire) and whatever hardened on the plastic I could scrape off with a knife. Solder does not work on plastic. Also post that spring in your lower.
>>65262512FOSSCAD is 1% people that can actually use CAD, 99% brown ancaps that can’t afford actual firearms
>>65262633
>>65262633The mag release is functional and the bolt stop is held in pretty firmly, but the spring is sitting properly. It seems to be holding the spring in, I will have to fire it later to be sure but "it only bonds to metal" doesn't seem totally true. (Previously I've only used solder to change blown capacitors on TV power boards).
>>65262633Better angle holding fine seems
>>65262740must be nice being retarded
>>65262624Thats why im asking if PETGCF maybe its the groves from the texture of the print or the carbon fibers it seems to be bonded, there's no stress on the part other than the bolt stop spring, so ill post after firing later if thread is still up then.Just seemed like a better fix than glue, glue near springs is fucking dangerous
>>65262750Explain please if you call me that just fucking explain what is the reason, damn this place used to have helpful people
>>65262624The mag release is springy and functional, okay so the post was just saying / asking that solder around my spring worked better than glue, and that it did stick to PETGCF but I have not fire tested the configuration yet. Ill wear safety shit when I test it.
>>65262686>FOSSCAD is 1% people that can actually use CADUsing CAD is high-school tier, designing CAD is Uni-tier. Human brains are all Grey matter anon
>>65262734>>65262738>>65262740What I'm seeing is that the solder is sitting on top of the plastic and only being held there by the grooves/layers of the plastic. It's basically only held on by friction, and it will probably break off with a few shots or a good enough bang on a table. Figure out how to properly install your spring or another way to retain the magazine inside the gun instead of relying on the friction of solder between what is basically the grooves on a record
>>65262806Maybe, ill report after firing. It really does seem bonded to the PETGCF
>>65262821>It really does seem bonded to the PETGCF
>>65262825I am just stating what it seems like, its not holding stress other than a tiny spring for the mag release. The mag is still held in by a metal lever, its basically keeping the button to release it operational.Ill test solder on other parts to see
>>65262754multiple people have told you the solder is not doing anything. you decide to ignore reality and claim eh its fine. you are a retard. you dont even comprehend what you are looking at but somehow think yep this is good.
>>65262839I just tested it on a jig of PETGCFITS FUCKING BONDED LIKE ITS PART OF THE PRINT, I tried scraping it with a knife its fucking 100% bonded Just something I discovered for quick fixes
>>65262839>the solder is not doing anythingLmao it does come off with a crowbar
Ok I melted a few inches to this, it melts to the part. So yes it is held in by friction >>65262806However melted into the plastic is not a terrible bond. The two are connected by the microscopic friction between them, which I don't think is bad considering prying it with a small "crowbar" can remove it, which doesnt seem that bad for a thing you want to be able to take apart and put back together
>ill report after firing>Just something I discovered for quick fixesIve been on reddit too long
This thread keeps on giving lmao
>>65262762>>65262831You're so retarded, I've reported this illegal sbr to the atf. Just quick guess on how hideous that is and you giving redditor vibes, you didn't do your free sbr paper work and took shortcut to do an illegal sbr.
>>65262734>Right side>>65262751>Left sideYeah both sides of receiver don't show your proper sbr markings. You're fucked mate.
>>65263085>illegal sbrNo such thing. The ATF is illegal, bootlicking faggot. I hope you get AIDS
inb4 op blows his hand off
>>65262754no it didn't.
>>65262754Holy fuck. You are being helped you're just too fucking stupid to listen. You cannot solder plastic. If you could then it wouldn't be used on circuit boards. There are proper epoxies/fillers for actual plastic welding. If you don't believe the dozens of people here, you can just google it.
>>65263473I do think he's coming back. He was retarded enough to think soldering plastic would work, not realizing how 3d printing added manufacturing works on bonding layers. That receiver also looks structurally unsound with good portion of left side of receiver missing near the fcg. He also posted all sides of his sbr showing it's not done properly. This thread's now an ATF evidence thread for OPs reddit rectum.
>>65263473Plastic welding is a fucking meme you try hard faggot. OP has done nothing wrong here. His solution will be sufficient enough. Are there better options? Yes. Is plastic welding one of them? Fuck no.
>>65263804Welcome back, OP.
>>65263810Not OP just a plastic enthusiast. Op has a sufficient friction fit but why not just spray epoxy over it? The receiver is a wear item. I made a tokrev frame out of basic green pla and it only exploded later which I suspect was due to me cracking the frame around the magazine release. It was otherwise fine. Light too.
>>65263804>>65263854The correct answer always was reprint or use epoxy. Solder isnt a good material for this.
>>65263863OPs missing a huge chunk of the left side of the receiver. No amount of solder or remelting plastic will fix it.>>65262751The back of the receiver is holding in the upper and recoil springs. The bolt is slamming into the back of it with the recoil springs. He's missing like 1/4 of the material in that section on the vz.61. OPs retarded. Let him post his sbr and try firing it with the bolt going through his already empty skull when the receiver fails and the bolt keeps going with the back half of the receiver into his skull.
>>65263863If we’re being honest filament isn’t a good material either, but we’re on the bleeding edge of science here. Yeah, it looks like ass but I actually don’t see much of a problem here. It could have been a worse print issue. The barrel pins in so easy that I almost wonder if a .22lr and printed bolt might hold.
>>65263877It’s not a big chunk tho. It will hold. Will it last? Probably not. You gotta have some faith in the plastic.
>>65262927>not a terrible bondinclude me in the collage lol
>>65262621he's EPOXYLESShe's BROKE!!!!!WHOAAAA BUDDYYYY
