Break Testing 3D Printed Carabiners Etc.

[@austinsmith3749]

And now you can customize your new MB saddle even more by being able to MOVE your D rings!! Awesome stuff guys! Love the invention and creativity. Thanks for sharing

[@macman231]

Testing to destruction is always a good watch! Thanks for the key ring mention August, I just thought that might be interesting since if you're monitoring your key ring shape and you see that its no longer round, then maybe you stressed it, so you have a visual indicator of stress, all depending on what you might use it for of course, obviously not a life saving device :-)

[@Zogg1281]

I could watch break testing like this all day 😂 For a break-away carabiner, the thought I had was a metal carabiner (similar to the design you are using) that has a pin that is designed to fail at a certain load. It may be more reliable than a fully 3D design 🤔

[@trappedinkalifornee]

Actually those d rings impressed me a bit!👍🏼👍🏼👍🏼😃 keep up the exploration hobby!

[@roymyers8575]

How cool is it to work with your kids learning like this, a master class in real world circumstance.

[@danmcburney3247]

This is really awesome to watch !!!! Thank you ❤❤

[@ddalton692]

👍 It's always cool to watch the Wreck-It Ralph testing Interesting

[@nate-408]

I would love to see you test all sorts of things. How about some throw line? I'm definitely interested in watching what you come up with. I enjoy these testing videos. Great work so far. You guys are definitely making progress! Keep going guys and great work! I thought I had decided on the olive monkey beaver 2.0 buy now I'm torn! I love the blue and the red. All the custom stuff you guys make too! Man you guys are great I'm spoiled for choice lol.

[@bobwiese6128]

Thanks guys. Love these tests. 😊

[@stevesrt8]

you guys must have so much fun lol. new accessory clips look cool. might have to get some for rigging chunks down off my belt lol

[@robinelston5966]

Enjoyed the testing, I would encourage changing the climate in the test box to simulate summer and winter conditions also. I just noticed the Bridgeport in the corner! envious, nice machine! Who's the machinist? I spent New Year's eve at the lathe and mill building a throwball launcher, Initial test today was compete success! Thanks for posting. Have a blessed new year sir.

[@warped2875]

@August Hunicke For the break-away connection, how about using a regular accessory carabiner that has been compromised by either filing material out of a chosen failure point? Or, better yet, milling it out with that Bridgeport mill that I see in the background.

[@michaelwhiteoldtimer7648]

I think I could watch you break things all day

[@mfreund15448]

It would be a fun afternoon at MB offices!!

[@havespurswillclimb]

Enjoyed the break testing. Good stuff. Can we replace our old rings with the new ones?

[@AugustHunicke]

If you’re talking about cargo D’s and you’re talking about the 2.0 harness then yes.

[@geoffreygreen297]

Thank you for all you do! To the whole MB Team.

[@L3Dhelpguide]

I think your nirvana is a 3d printed round ring, that a conventional carabiner attaches to for the break away safet. Use a small metal quick link on other side of printed ring to opposing d ring

[@jacobbitton3938]

I don’t do any 3D printing, but I’m just wondering if you could make something more like a ring? Im imagining that it would possibly be stronger with no hinge or gate. You would have to hook to it on both sides with an actual carabiner. But you’d still have a breaking point in between. You could make them bigger or smaller to adjust the breaking point. Love your videos.

[@L3Dhelpguide]

Im a 3d printing hobbiest, and i totally would use a break away printed carabiner. My target brake would be about 450# ish

[@L3Dhelpguide]

And I'm a certified climber, tower rescue etc.....

[@cavingman1]

You definitely need to do some more of these videos.

[@bdpgarage]

Have you tried making the threads larger diameter?

[@NatureShortsGB]

Very interesting

[@austint7674]

How about an emergency quick release link for the flip line? Just thinking that if you felt the stem start to fail, you may want to abandon ship before your climb system gets loaded enough to break your fusible link.

[@AndrewAntonelli-dj4qt]

how much pressure due we think we put on buckstraps, maybe a third of our weight when leaning back? like a lot of folks 3 zip ties has worked for me, which definatly wouldnt hold even half my weight,,,,,i think

[@timhelton5615]

Oh man….i didn’t get red with mine. Red D’s but grey cross stops. 😂 Absolutely love the saddle though.

[@mfreund15448]

Seems like sizing up the threads and running the threads to full width of the carabiner would be in order.

[@gschgvt2956]

Since you are starting to use this for commercial purposes just buy yourself a Markforged and write it off. They can do continuous fiber printing- laying down a continuous fiber of carbon fiber, Kevlar, or glass unlike the cut carbon fiber chunks that are in all other CF filaments. You can get a Mark Two for $16k which will also print TPU if you wanted to make protective rubberized boots for stuff. As Joe mentioned, the higher heat materials tend to be stronger so you can get strength that way with an enclosure on a cheaper printer. Some don’t get hot enough though so keep an eye on those parameters.

[@tomintexas817]

408 that's impressive

[@karleck1119]

Great video don't know much other than I just use a garden hose

[@jackberdine]

I have a monkey beaver 1.0 harness still and I'm very careful not to get caught by the D ring gear loops. I think they really should be break away. If something heavy got stuck hanging off your back you'd have virtually no way to get yourself free.

[@rhondasweeney7271]

Amazing tests !

[@danowen9142]

"Jenky" I think Jenky is the word you were looking for,.....

[@TimberTrainer]

If you could 3D print a carabiner that consistently broke over 23kn, would you trust it for climbing?

[@AugustHunicke]

Maybe not. 😁

[@julianalderson3938]

Is fun bro interestin

[@ted7x]

looks like an issue with slicer settings on that green one it shouldn't be printed hollow wall thickness all that's holding the threaded part to the rest of it would make it 100% infill around 5 or 8mm past where the thread starts that should hold a lot more also concentric pattern will do a lot more than lines or zigzags

[@Bunk599]

I am an avid fan of all things August. This comment is intended to be helpful not critical or snide. Your reservations are justified. As a retired professional engineer with 45 years experience designing and manufacturing a wide range of components I can't tell you how bad of an idea this is to use such an imprecise process to manufacture a structural safety component...to sell or for personal use. Makes me uncomfortable just thinking about it. ...kind of like climbing a leaning dead hollow tree with a big crack. There are far better ways to produce a fuse-able link.

[@Drewdrewdrewdr]

Given that many people use zip ties for this purpose would you consider the 3d printed piece to be an improvement? Or worse, or neutral?

[@Bunk599]

@@Drewdrewdrewdr Both ideas make me nervous. Neither approach has the controlled performance consistency desired for an important safetry device. I understand in the absence of a good answer people will improvise....but these two solutions are risky. In my judgement you may never see a commercial product offered by a major manufacturer. The product liability risk outweighs the potential financial benefit of the small sales volume......which makes me hesitant to even suggest alternative solutions. I hope the industry finds something that works.

[@Drewdrewdrewdr]

@ interesting

[@Drewdrewdrewdr]

@ and if product ever was made, it would probably be 1 million times more expensive than a zip tie, which most people would probably still end up using as a result

[@Bunk599]

@@Drewdrewdrewdr Yeah, that is a good possibility.

[@julianalderson3938]

Spose how is it in waether breakin down over time?

[@williamsolomon1307]

Well, if you won’t sell them, and you get them dialed to break at a consistent weight, AND some of them happen to make it into your trash (in a marked bag). You may find them gone before the garbage guys get there and a couple 20’s under the welcome mat. 😂

[@br-dj2ti]

What if you just put like a flip gate instead of a screw gate would it hold stronger I don't know nothing about this stuff at all but I was thinking just like a flip gate that snaps open and closed God blessed August

[@madamecampsalot6384]

These are fun.

[@lililililililili8667]

Maybe zip ties would be more consistent if you had had good ones. So many variables with the printer.

[@wicked98r1]

What about a breakaway for a saw, power or hand, tether? I can think of some instances where sacrificing a piece of equipment would be better than it coming around and hitting you/me.

[@AugustHunicke]

I consider breakaway lanyards and carabiners for a saws unnecessary because the saws break when pulled hard. Don’t ask me how I know.

[@wicked98r1]

@ I trust ya! Just throwing an idea out there, but figured you guys probably considered it already. Loving the idea for the D rings! I’ve put off moving mine knowing I won’t get them as tight as they are now!

[@danmcburney3247]

😂😂😂

[@richpitty]

I know your daughter had asked for some marvel comic ideas for a harness I’d be interested in a dead pool harness or even the joker I know that’s not marvel but the joker is cool I’d be interested in chatting about making one for me to buy

[@julianalderson3938]

Sure ya have thanx

[@jameschupp2230]

Double the Diameter of the Bolt!

[@MikeErb600]

🤘🤘🤘💪💪

[@robertmailhos8159]

Welcome to august honiky test Lab

[@L3Dhelpguide]

Carbon fiber in fdm printing always waekens the bas material. Its a filler, with no cross link bonds like other CF products

[@gschgvt2956]

Somewhat incorrect. That happens with the cut CF done with cheaper printers. That does not happen with continuous fiber printers.

[@joeledwards1125]

August, Dr Stuart McGill, all things back related.

[@leonardomigot-yn1ti]

plastic 3d stamped with torque then broken already why is not built for that thing

[@batmantiss]

YEA SCIENCE!

[@julianalderson3938]

Tryed round.

[@legend7ify]

[@WilliamStocker-r1f]

Good job Jesus is the S0N of God Bless you and your family and your friends

[@julianalderson3938]

Lota plastics not great.

[@stusue9733]

You'r testing them the wrong way thought aren't you? (which I'm sure you know, I just wonder why)

[@AugustHunicke]

“Wrong way thought?” ???? No clue what you mean.

[@stusue9733]

@@AugustHunicke oops sorry "wrong way though" To load that pin in use the way you are testing it, wouldn't you have to fall out of the tree and catch it on a stub? Something like hanging a chainsaw off the ring you have a half warp of webbing helping. Hopefully clearer than my last attempt.

[@AugustHunicke]

@ we tested a few different things so I’m not sure which you are referring to. If it is the carabiner then we are simply just testing to see what it breaks at. 🤷🏼‍♂️

[@stusue9733]

@@AugustHunicke The pins for you the accessory rings.

[@AugustHunicke]

@@stusue9733 yes, they would be even stronger if we pulled them exactly how they will be loaded.