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Started By
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re: Decade old on this, but 3D printing is amazing
Posted on 11/15/23 at 8:42 am to tiggerthetooth
Posted on 11/15/23 at 8:42 am to tiggerthetooth
You’d be surprised by the strength you can get out of nylon or even PLA, but if you just have to have metal this is a thing:
LINK
You have to sinter it, basically bake it at high temps in an autoclave, but the printing part can be done with a cheapo ender 3 (~$200).
As I said though, metal is rarely necessary. I have printed semiauto .308 rifles that run more reliably than some of my factory weapons. If you aren’t printing your own guns in the year of our lord, 2023, what are you waiting for?
LINK
You have to sinter it, basically bake it at high temps in an autoclave, but the printing part can be done with a cheapo ender 3 (~$200).
As I said though, metal is rarely necessary. I have printed semiauto .308 rifles that run more reliably than some of my factory weapons. If you aren’t printing your own guns in the year of our lord, 2023, what are you waiting for?
1
Posted on 11/15/23 at 8:50 am to Ssubba
A company called "Relativity Space" is 3D printing rockets so they can custom fit a rocket to deliver your desired payload to orbit. They have sent at least one to space so far and it held up to the desired pressures 
Posted on 11/15/23 at 8:56 am to tiggerthetooth
quote:
Except it can't do metal.
Suppresors are being made by Primary Weapons System
Posted on 11/15/23 at 9:22 am to Ssubba
Can someone print a new dashboard for my 1996 Dodge Ram 1500?
Posted on 11/15/23 at 9:32 am to DownshiftAndFloorIt
quote:
turbine blades are "additive" manufactured now
Saw this (remanufactured, anyway) touring delta's rehab facility at Hartsfield ~20 years ago.
Not quite 3d printing, but basically added layers to existing parts like painting.
Except the paint is a titanium plasma that fuses to what's already there.
I can only imagine how much that's progressed since then.
Posted on 11/15/23 at 9:41 am to Tangineck
quote:when apple released quicktime in the early 1990s it was 160x160 pixels and played at 5fps on the top-of-the-line $10k apple iifx. I said "no way they can ever do rich video on a computer.
3D printing of metal is incredible, but an often overlooked aspect by hobbyists is that the finish isn't good enough for sealing or mating surfaces. In nearly all cases there is still required machining on the prints for usable parts. For very complex, one off parts it is viable, but it has yet to replace castings for mass produced parts because of cost.
Give it some time
This post was edited on 11/15/23 at 9:43 am
Posted on 11/15/23 at 9:50 am to Tigerrganz
quote:
Can someone print a new dashboard for my 1996 Dodge Ram 1500?
This guy did a lot of a lamborghini.
Youtube
Posted on 11/15/23 at 9:52 am to Ssubba
Just wait until it starts printing its own soldiers and Megatron comes to command his army…so
Posted on 11/15/23 at 10:01 am to CAD703X
quote:
when apple released quicktime in the early 1990s it was 160x160 pixels and played at 5fps on the top-of-the-line $10k apple iifx. I said "no way they can ever do rich video on a computer.
Give it some time
I agree with you, but there are physical limitations on materials also. Will it ever reach the ability to produce a less than 20Ra surface finish on 316L with no additives as required by biopharmaceutical use in vessels? Time will tell. I work in the metal manufacturing industry. Many of the applications that people think 3D printing will take over are certainly not guaranteed.
Posted on 11/15/23 at 10:01 am to Ssubba
I've been into the hobby from 2014 or so. I've had quite a few printers that I've built, but the last one I purchased was the Bambu Labs Carbon X1 and that thing is the fastest and most reliable printer I've owned. It also was the most expensive. Most of them were kits and were from $300 to $600. I don't think I could ever go back with because the speed difference in parts is crazy.
It's fun to design a little thing in Fusion 360 or Freecad like a replacement vent for a dryer and print it when done.
There is a lot of tinkering to get them set up for great prints. Although that new printer is the nearest thing to a plug and play experience.
It's fun to design a little thing in Fusion 360 or Freecad like a replacement vent for a dryer and print it when done.
There is a lot of tinkering to get them set up for great prints. Although that new printer is the nearest thing to a plug and play experience.
This post was edited on 11/15/23 at 10:03 am
Posted on 11/15/23 at 10:09 am to Ssubba
Additive manufacturing covers just about everything now.
Where the technology is lacking (and opportunity exists) is with regard to print speed/size.
Once they solve for that, the economics will sort itself out.
There is a LOT of potential for disruption in manufacturing once they're able to print bigger and/or faster. Think micro-factories scattered all over cities. Tie it into inventory management systems and you reduce the need to hold much of anything in inventory.
Where the technology is lacking (and opportunity exists) is with regard to print speed/size.
Once they solve for that, the economics will sort itself out.
There is a LOT of potential for disruption in manufacturing once they're able to print bigger and/or faster. Think micro-factories scattered all over cities. Tie it into inventory management systems and you reduce the need to hold much of anything in inventory.
Posted on 11/15/23 at 10:16 am to Mor Miles
@Mor Miles
What are printing? I'd be interested to see what you've come up with.
quote:
. I have printed semiauto .308 rifles that run more reliably than some of my factory weapons.
What are printing? I'd be interested to see what you've come up with.
Posted on 11/15/23 at 10:21 am to Tangineck
quote:
3D printing of metal is incredible, but an often overlooked aspect by hobbyists is that the finish isn't good enough for sealing or mating surfaces. In nearly all cases there is still required machining on the prints for usable parts. For very complex, one off parts it is viable, but it has yet to replace castings for mass produced parts because of cost.
The next big hurdle to overcome with metal printing is strength. Anyone who has taken a materials course learns that the strength of steel and other metals are gained by hot or cold working the steel to align the grain structure.
With interest in learning how strong is 3D metal printing the first link that popped up was this YT LINK.
Here is the summary of testing these clips to failure. The weakest was PLA, then Aluminum and then Stainless Steel.
> I would have expected the stainless steel to be MUCH stronger than Aluminum. The stainless steel used in 3D printing is stainless with the "L" designations indicating low carbon content. That is, it is weldable The low carbon content stainless will not rust after welding, via laser welding in 3D printing.
The tensile strength of ANSI 316L stainless is 74700 psi. About the same for 304L.
The tensile strength of Aluminum varies by grade but it is generally around 42,000 psi.
Under normal circumstances you would expect the stainless steel to be almost twice as strong as aluminum. However it appears that 3D printed stainless steels is only slightly stronger than aluminum due to the lack of aligned grain structure.
Posted on 11/15/23 at 10:22 am to eitek1
Nice try FBI
quote:
@Mor Miles
quote:. I have printed semiauto .308 rifles that run more reliably than some of my factory weapons.
What are printing? I'd be interested to see what you've come up with.
Posted on 11/15/23 at 10:25 am to eitek1
quote:
@Mor Miles
quote:
. I have printed semiauto .308 rifles that run more reliably than some of my factory weapons.
Why buy metal 3D printing equipment when it is much cheaper to buy metal lathes and milling equipment that makes a better and more reliable part?
Posted on 11/15/23 at 10:25 am to Ssubba
No it’s not
It takes like 24 hours to make some bullshite that looks like ramen noodles
It takes like 24 hours to make some bullshite that looks like ramen noodles
Posted on 11/15/23 at 10:55 am to eitek1
quote:
What are printing? I'd be interested to see what you've come up with.
I have printed a bunch of firearms, but the .308 specifically is called an Amigo Grande, designed by a guy that goes by NaviBoomhandia/Ivan. It uses the guts from a demilled Spanish CETME battle rifle. You just buy the decommissioned rifle guts and a barrel and print a receiver for it. OT jokes aside, all in for ~$350 on that build.
[url=https://postimg.cc/FYbwNvZJ] 
This post was edited on 11/15/23 at 10:56 am
Posted on 11/15/23 at 10:57 am to Ssubba
quote:
my local library's 3D printer
I didn't know this was a thing. Now, that's a good way to spend some money for the public.
Posted on 11/15/23 at 10:58 am to GumboPot
quote:
Why buy metal 3D printing equipment when it is much cheaper to buy metal lathes and milling equipment that makes a better and more reliable part?
All of my printed firearms are made with either PLA or Nylon. No metal printing needed.
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