Like a boss! I love how the orca looks like damn it’s looks better than an original ar15. Super nice design there Hoffman and I can’t wait to build one :)
Could be interesting to see a similar test with a recently used Orca while it's still warm. Might deform more than cracking? Of course the heat would be localized, so that would also be a consideration. Could also look at extreme cold testing. All in due time, I suppose.
My guess as to what'll happen is the upper will keep trying to unhinge from the lower, and the lower part of the stock by where you shoulder it will sort of wear and warp, (edit just heard there's no buffer tube in there, so that's probably a weaker point to wear) possibly the pistol grip will bend Maybe some breaking of the printed area around the barrel and gas tube If it's PLA, which I believe that one Either that or nothing will happen I'd have a better guess, but I haven't had the time and inclination to print and build an Orca *yet* so I'm probably way off But I love this channel and want to engage with it to hopefully have RUclips show this channel and videos to more people
Something I recommend is rapid accelerated trauma, something like an impact, something I’ve never seen a youtuber do is try to use their rifles like some kind of axe and hit it against a solid object
i've seen all the tests, and actually the el cheapo carbon filament does the worst in the tests as far as tensile strength, and that's what you need with the clips. really impresses me that you couldn't break it!!! Amazing...
Prediction: If the barrel is jammed into the dirt while you are doing pushups, the buffer tube will become the fulcrum. Permanent deformation to a sudden snap. If the buffer tube stock is jammed into the dirt, the handguard will become the fulcrum (especially around where the hose clamp is). Deformation until the handguard touches against the barrel.
Amazing. I am thinking of Edison's experiments with lightbulb filaments. One day you'll have the right blend to eliminate POI shift. Then, game over. Cannot regulate what we can make at home.
I'm not proficient in 3d modeling or firearms design, but how much effort would it take to turn the Orca into a "featureless" rifle, given the modifications you've already made to the AR platform design? Is it possible to merge the pistol grip into the existing stock design?
Have you thought about a rubberized coating and apoxy enamel over the tower and stock well to help give it more reinforced elasticity to deter cracking.
It would take a fairly thick coating of epoxy or rubber to strengthen the lower. The PLA is cracking throughout the lower so a thin coating on the outside isn't really going to help with that.
Tim you opened yourself up to some embarrassing edit potential here lol. Amazing work you’re doing bud. Weapons have always gone through phases where the average human can make them. We’re almost there with firearms
Just had a crazy idea, What if you 3-D printed under pressure so that all the individual filler spaces are pressurized… think that might help strength? Regididy? Maybe not with this build but ingeneral?
@@HoffmanTactical Plastic deformation of layers could result in the cracking you are seeing. Its been a while since I did engineering trenchwork on composites, but I vaguely recall some creep failure modes being crack propagation, but I could be wrong. Of course it would be dependent on exactly how the load is being applied relative to the build orientation/layer bond orientation. Unlikely if it is a compressive stress. Interesting phenomenon you have come across none the less!
could you make the receiver longer? as in chop the front end of the stock off and put it on the buffer tower end of the receiver. thicken it up a bit and move the boundary of the parts away from the stress concentration?
Let God bless you for all good and develop in this project, you are a good and good wave of the American people and pray to God to keep you away from every evil.
I understand tests for strength, but in reality if im banging my firearm up that bad or falling quite frequently, then maybe i shouldn't be carrying a rifle..
Just print or buy a thumbhole stock from Hera or from Vism. The connection from the grip to the buttstock adds a massive amount of strength. You guys should be smart enough to figure that out. Good grief.
@@docternoblex dude wtf are talking about. That is the best way to reinforce 3d printed or polymer lower. Unless you like your shit breaking in your face. Hera is also German made and if you know any american thumbhole stock makers im all ears.
@@AllFallBeforeMe german made is bullshit, it’s german *designed*, made in china, even if it did mean anything, it’s still crap. If you want a quality thumbhole stock, you print a lower with metal inserts to prevent cracking
hey brotha, new sub for ya here, i am a u.s. marine vet here 93' to 97' active ! , only have email here , would love to talk more + i am tracking down some tacticaL stuff for trade/swap , thanks n talk soon > tom !
I think Tim just does this to show off how many push-ups he can do
Also without having looked too much at the orca I feel the lugs that hold the upper and lower together will be the failure point
Flexing
This I believe is where it would fail, it got close.
@@HoffmanTactical ha 😂
Push up difficult is x2 with button up shirt I heard
Hard to believe that it's been a little over 10 years since the start of 3d printed weapons!
Yeah remember when people were freaking out about 3D printed liberator pistols? Now we have shit like this, most dope for sure.
You’re genuinely honest because you’re genuinely curious about your design
Like a boss! I love how the orca looks like damn it’s looks better than an original ar15. Super nice design there Hoffman and I can’t wait to build one :)
Oh man, that PA6 Orca looks so good. Great work Tim
An excellent and very clear improvement. IMPRESSIVE!!!
Flex that 2A. Prints have come a long way
Could be interesting to see a similar test with a recently used Orca while it's still warm. Might deform more than cracking? Of course the heat would be localized, so that would also be a consideration. Could also look at extreme cold testing. All in due time, I suppose.
Interesting about that PC cracking issue, I'm seeing that on a 3 year old pair of my favorite sunglasses around the nose area
This is awesome thank you, the future of private firearms manufacturing.
Congratulations 🎉!! Now imagine trying to do that with the all CF one…your arm would break before the firearm
My guess as to what'll happen is the upper will keep trying to unhinge from the lower, and the lower part of the stock by where you shoulder it will sort of wear and warp, (edit just heard there's no buffer tube in there, so that's probably a weaker point to wear) possibly the pistol grip will bend
Maybe some breaking of the printed area around the barrel and gas tube
If it's PLA, which I believe that one
Either that or nothing will happen
I'd have a better guess, but I haven't had the time and inclination to print and build an Orca *yet* so I'm probably way off
But I love this channel and want to engage with it to hopefully have RUclips show this channel and videos to more people
Throw it out of a gas balloon and accomplish two dreams at once
Hope to support the project soon!
I suspect it will break through the lower. Now for the show! Thank you!!!
You where close! If it was going to break, that's where it would go. I'm just not heavy enough.
@@HoffmanTactical great design work! I sincerely appreciate your real world approach.
“Come one, break!”
Random guy enjoying the park:🫥
i dont think that was a guy
Wow! That is crazy impressive!
It’ll probably underperform in its chosen field and disappoint its family
Something I recommend is rapid accelerated trauma, something like an impact, something I’ve never seen a youtuber do is try to use their rifles like some kind of axe and hit it against a solid object
i've seen all the tests, and actually the el cheapo carbon filament does the worst in the tests as far as tensile strength, and that's what you need with the clips. really impresses me that you couldn't break it!!! Amazing...
Yes. The cheap filaments tend to use less fiver, and hence lower stiffness. Better adhesion though.
At the lugs... I'm going with your prediction
Hoffman’s demi-godesque biceps will give out first I predict
Edit after watching the whole video: I was right and I win. Yay.
Yes! Though it's really my weight that is insufficient.
So would this one shoot after the "break/Stretch"?
Yes.
@@HoffmanTactical fantastic. The orca has got to be the best 3D2A ever made.
@HoffmanTactical when would you not shoot one based off damage?
Seriously impressive job with your creations. But I really want to know what shirts you buy, they look hella comfortable.
siiick! are the full kits back in stock yet?
Very soon.
Prediction: If the barrel is jammed into the dirt while you are doing pushups, the buffer tube will become the fulcrum. Permanent deformation to a sudden snap. If the buffer tube stock is jammed into the dirt, the handguard will become the fulcrum (especially around where the hose clamp is). Deformation until the handguard touches against the barrel.
Push up testing must always be conducted with a single point of ground contact ;)
Amazing. I am thinking of Edison's experiments with lightbulb filaments.
One day you'll have the right blend to eliminate POI shift. Then, game over.
Cannot regulate what we can make at home.
My Ubolt is still going strong after thousands of rounds. I believe youll get it. My X1C cant wait to test.
Oh, we got it. The Orca has been out since Jan.
@HoffmanTactical the newest 9m version? I'll have to go look!
@@camontwo3200 No, not the new SL-9.
My dumb@ss thought this was going to be 9 minutes straight of push ups 😂
I'm not proficient in 3d modeling or firearms design, but how much effort would it take to turn the Orca into a "featureless" rifle, given the modifications you've already made to the AR platform design? Is it possible to merge the pistol grip into the existing stock design?
Very nice! Maybe it would break with a bit more weight? How much do you weigh out of curiosity? Anyway, very impressive💯
Yes, I weigh around 145. Definitely need to rig it up with more mass. Or a longer stock.
gonna put my super lower together on memorial day and then this will be my next build
Have you thought about a rubberized coating and apoxy enamel over the tower and stock well to help give it more reinforced elasticity to deter cracking.
It would take a fairly thick coating of epoxy or rubber to strengthen the lower. The PLA is cracking throughout the lower so a thin coating on the outside isn't really going to help with that.
I think the rear clips..... But I'm not sure
I can do plenty of push-ups but I’ve tried to do this and can’t even balance for one. Your core strength must be insane
Hit it against a hardwood tree like a bat
I'll do that next time. It's sure to get a failure at the layers somewhere, as they are more brittle.
Where did you get that shirt
Thoughts: For people with simple machining capabilities, would making the clips and barrel clamshell thing out of aluminum be an improvement?
Clips yes, but not the mount. Would transfer heat the the upper much too quickly.
really love the content bro
Make auto sears an call them clothes hangers 😂😂😂
I think you should hold onto a fence post and hop on it with your feet. Did it shoot afterwards?
That would do it I think! It would have shot, but I just moved the parts over to the camo print instead.
Could you do a stream/video on annealing your parts? I train pla+ but can’t get the dimensions correct on the slicer to match the shrinkage per axis.
This reminds me of a really ghetto weld bend test.
I think the failure would be around the rear of the grip
The clips seem so small and fragile, but I would guess the PLA interface between the clips will fail first.
Tim you opened yourself up to some embarrassing edit potential here lol. Amazing work you’re doing bud. Weapons have always gone through phases where the average human can make them. We’re almost there with firearms
That happened for swords? I feel like I would really struggle to make a sword
I hope the Orca fails before your arms, otherwise you might lose teeth on the optic!
That my friend is fore sight. Most don't have some.
Rick James could've broke it
This comment is just to boost the video
Just had a crazy idea, What if you 3-D printed under pressure so that all the individual filler spaces are pressurized… think that might help strength? Regididy? Maybe not with this build but ingeneral?
Can you describe your idea in further detail?
I think the term you are looking for is "Creep" rather than constant stress cracking.
Almost, it's similar to creep. Creep is plastic deformation, this is fracturing. A distinct deference.
@@HoffmanTactical Plastic deformation of layers could result in the cracking you are seeing. Its been a while since I did engineering trenchwork on composites, but I vaguely recall some creep failure modes being crack propagation, but I could be wrong. Of course it would be dependent on exactly how the load is being applied relative to the build orientation/layer bond orientation. Unlikely if it is a compressive stress. Interesting phenomenon you have come across none the less!
could you make the receiver longer? as in chop the front end of the stock off and put it on the buffer tower end of the receiver. thicken it up a bit and move the boundary of the parts away from the stress concentration?
Yes, and I may do so at some point. There are other advantages as well.
My pre thought is it’ll tear around the stock joint to the receiver
Let God bless you for all good and develop in this project, you are a good and good wave of the American people and pray to God to keep you away from every evil.
I’m more worried about the barrel attachment point melting. That’s a critical failure point, not the tower which you shouldn’t be doing push-ups on.
That's a separate issue, which we have tested extensively.
7:40 The person that walked by and seen what you were doing said F this and turned around was hiliarious.
Great job bud
Great video do you still use Push plastics carbon fiber nylon?
No, I use Polymaker mostly now.
Pls make the AR M4 STAR MERCURY from an online fps game SF2
Send one to demo ranch to test. He will break it lol
Would this work for it a 9mm setup?
algorithm!! Don't forget to like.
I understand tests for strength, but in reality if im banging my firearm up that bad or falling quite frequently, then maybe i shouldn't be carrying a rifle..
Where do i get this file for testing?
Rear clip going to fail
probably snap at the seam
Buen video 👍
You failed to break the Orca. Shame on you! Get someone to lay on your back to increase the load and try, try again.
Prediction clips fail.
Not with PA6-CF clips! I've yet to have any crack. The PC was a big issue.
@@HoffmanTactical that was very interesting to see. So a full nylon build should be solid.
Stronk Tim
What printer!!!!
Bambu or Prusa. I use both with good results.
what he sed
Currently struggling to print mine, Cura just seems like such an awful program
It is.
I say failure somewhere around safety switch
Wow 😲
Just print or buy a thumbhole stock from Hera or from Vism. The connection from the grip to the buttstock adds a massive amount of strength. You guys should be smart enough to figure that out. Good grief.
It's not needed, as can be seen here.
Imagine recommending hera or vism… please refrain from shilling for chinesium
@@docternoblex dude wtf are talking about. That is the best way to reinforce 3d printed or polymer lower. Unless you like your shit breaking in your face. Hera is also German made and if you know any american thumbhole stock makers im all ears.
@@AllFallBeforeMe german made is bullshit, it’s german *designed*, made in china, even if it did mean anything, it’s still crap. If you want a quality thumbhole stock, you print a lower with metal inserts to prevent cracking
Anybody else see the ghost in the blue dress 👗
gang gang
hey brotha, new sub for ya here, i am a u.s. marine vet here 93' to 97' active ! , only have email here , would love to talk more + i am tracking down some tacticaL stuff for trade/swap , thanks n talk soon > tom !
Holy hell you love hearing your own voice..
lol cute
Sounds a million times better than a civic.