Did your website get shutdown ??

I'm enjoying this series of materials testing. Keep up the good work!

As a printer NewB, this was extremely clear and concise, and demonstrated in a way I could see for myself. Appreciate it!

Video is easy to follow easy to understand for someone just getting into 3d printing great job man keep up the work love from the north!

You’re doing great work Hoffman Tactical! Thank you!

Fantastic run down! Thanks a ton for this excellent review and testing!

Love this guy and love his energy and love his work and love his attitude and keep it up.

Very useful data for my electronics prototyping especially for my Ebike battery holder ! A massive thank you.

Love the work you’re doing man. Love from NYC

Great video and information, thank you!

Your videos are great man. Keep it up!

Just thought I would drop you a comment, you are making some damn good content, very analytical and fact tested, much kudos to you :)

Man, just finished watching a PrintShootRepeat vid, it’d be awesome to see the two of you do a collaboration 🤙🏽 the both of you have been my go to for anything print pew related.

Really do appreciate everything you're doing for this community. Keep doing what you do man

Always great work 👍🏽👍🏽

Great video man

Great video!

Great review, jumping in one some new carbon filament on my CR10. Going to upgrade to the steel nozzle and give it a go.

DUDE, you're one wicked kid, seriously. Wish my parents were as supportive as yours are

Thanks for sharing this video & info. Great review

wonderful and thanks very well explained!

Great information. Definitely under rated channel. Have you tried overtures nylon? Supposedly fairly easy to print with but I imagine it's not pure for that reason so it's strength would be the deciding factor IMO.

You are the hero we need

I know nothing about 3d printing, materials or manufacturing in general, not sure how i got here. Learned a lot here, seems like your testing methods are pretty sound. Nice work!

I like the semi-technical graphs. I'm doing a lot of this for my engineering classes and you are getting great data with what you have. I'll admit it is nicer to do this with purpose built testing machines in the $40,000 range but keep it up.

I really appreciate the data.

Thanks, I just bought paramount petg cf, good test charts.

Good info my dude, nicely done. I would definitely say an impact/energy tester would be a good investment for your work

I would love to see you do testing and a practical print with remelted parts like shown by Free Spirit 1. this can be done with PETG and if done correctly, fuses the layers together.

This channel is def gonna have a million subs someday.

Outstanding work with this. I would still love to see a comparison like this of regular, glass filled, and carbon fiber nylon, given that glass-filled nylon of some variety is used in almost all commercial polymer-framed frames/lowers. But this test does seem to be pretty informative. Looking forward to when you get your impact tester running. That'll be even more helpful in determining what might work best for printed pews.

Excellent data impressive apparatus thank you.

The man among men is back gentlemen with even more critical info. 👌 doin God’s work. 🇺🇸

Great video. I'm not into printing firearms but I do a lot of mechanical testing and analysis. I really like your motorized tensile test. You could also take a look at my 3d printable 3-point bending test which can be used to determine the materials bending modulus to compare the stiffness. Usually CF filled filaments are way stiffer, especially when it comes to PETG.

Seems like pla+ works good for me for frames. But I’m interested in trying carbon fiber for magazines.

Excellent video! Thank you! currently testing polycarbonate with carbon fibers and the look and feel is certainly great, I'm not sure the inter-layer adhesion is as good as PLA - definitely not better. But: The carbon fiber PC is less brittle and my samples did not break to shreds like my PLA sample did.

Should try Annealing the Parts and test those results.

It's amazing how much input you have with what little testing you've done. Go back and try again kid.

I'm in the concrete industry. Fibers put in concrete make it a huge pain if you go to remove it. So much tougher than concrete without it.

On the topic of carbon fiber nylon I agree for the most part about using another suitable cheaper material if applicable but I believe the benefit behind such a material is that you can ideally get the right amount of resistance nylon provides with the rigidity needed from the carbon fiber for your application. Plus it has killer heat resistance properties. I will add that I found a very awesome side effect to this mixture. I printed some car parts with "CarbonX: filament and wanted to test it's heat resistance. I hit it with a heat gun to see how it would hold up and after a few minutes under the heat gun the print eventually started melting but the cool part is that the print did not warp before melting like many other filaments do. I was able to use this finding in my final prints by heat welded the layers together which gave me a very strong part that with stood a few accidental drops on my concrete garage floor as well as months bolted up to me cars engine without issue. I made velocity stacks for ITBs if anyone's curious. Now that being said absolutely no scientific testing done to my print to give strength and durability results. That would be an awesome experiment you could do for all of us to see? CarbonX nylon heat welded.

When it comes to 3d printer filaments with carbon fibers majority of the time it isn't for strength but to improve printing properties. Some performance filaments well above 350C printing temperature use carbon fibers just so they can be successfully and reliably printed.

Great video. lots of good information. One point I have to disagree with; Temperature and strength are not completely different topics. They are actually dependent on each other and one material could be stronger at a lower temp. but another material may be stronger at a different temp. They are very interdependent.

Not only like and subscribe but comment as well. It helps defeat the algorithm Great video as usual!! Thank you sir!

Great video and very informative. But I was partly left with more questions than answers. Let’s say I’m going to 3d print a drone what would be the best choice of material for it overall?

CF Nylon core wrapped in Nylon is an option, yes? For rigidity, but to also retain some of that shock resistance? Works well on Glock lowers, anyway..

Good video Hoffman! What's your opinion on ASA for printing lowers and such?

You rock

It does wear out the brass but no wear nearly as fast as it is reputed to... I printed a whole roll of Carbon fiber pla and at the very end is when I noticed wear... Still the steel is better...

It think you had a good conclusion, but I think you completely missed the factor of high temperature stiffness, which could be very important for many of us. CF definitely helps there, and also the type of base material choice is way more important, for example a good use case for CF nylon, PC CF etc.

First where the hell did you get a tensile testing thingy and second of all why aren’t we all using carbon fiber??? AWESOME VIDEO!!!

I was thinking to use cf petg for a lower to help with dealing with higher temperatures in general. Petg is the best option i have at the moment.

You can print with continuous carbon fiber reinforcement strands with dual nozzles. I think Cura ultimatker has that ability as well as Markforged. It would be an insanely tough and lightweight lower. But it would cost way more then a nice aluminum lower from a gun shop. Carbon fiber is not cheap

I'm with all of the folks surprised at the better layer adhesion. Makes it seem like they must need different print settings due to heat spread in the CF. Or maybe it's just a lot-to-lot variation in the spools. I did order a resin printer. Chasing that layer adhesion,.....

Hmm I got cf abs, cf pla,cf pc and cf petg also have a few stl's and multiple printers... thanks for this info, I gotta get slicing now. Gave me some ideas of what to use them for. I also have some pc blend as well. You ever use abs for lowers?

Thank you

Yo, nice video man. Just a little advice: Calm down. You speak into the camera as if you are going to beat me up lol

Good comparison video! Good info in this one - so how about possibly printing a different filament for the buffer portion of the lower (to allow for the removal of the hose clamp). Since I know I was the one making the big push for using a CF filament. I'm only saying - I want to be able to print a lower that is strong and can hold up to a heck of a beating without requiring a hose clamp. And youre doing an awesome job of being unbiased and taking a strictly scientific look at this.

Dude, thanks for doing this! We've been told over and over that CF is actually weaker than sans CF, all else being equal. This seems to challenge that conclusion for sure. I would also add that CF filaments have much higher definition. I print lots of fine threads, and since starting to experiment with CF I've been able to stop offsetting my thread faces and simply use the looser thread class profiles in Fusion. Which should hypothetically also make the threads stronger just because there's more material there, and more surface area.

Excellent info! So, PLA is king? Not Nylon or other "exotics" for lowers?

Thanks for a great video. I have mostly got good results with PLA. Problems sometimes arise when my constructions are exposed to heat and UV radiation, ie outdoor use. How is Carbon-Nylon in terms of heat and UV?

Will you let us know who your web provider was after you get up and running again?

Just askin', hope there is news soon on your new provider.

With the CF filament i go with a .12 layer height and run the noz i bit hotter than i would with regular pla depending on the day/print 225-230 i also print slllllow @ 40mm/s, and 5% fan after first 5 layers. Takes 3 days to print a uh, well, you know, but it is worth it. Also feed at 105% Im no pro but trial and error has gotten great results now.

Have you looked at glass filled filaments? It would be interesting to see how a filament comparable to zytel performs...

Polymax PC is my filament of choice best strength, impact resistance and toughness overall with awesome heat resistance

I'm interested to see performance with temperature extremes. Cold extreme to be specific.

Layer adhesion: +5C and 0.2mm layer height.

LOL@ 8:24! who's that, your big brother?! lol

What about baking or annealing to get the layers to melt or bond together better to make the frames stronger

Have you tried glass fiber nylon? The carbon fiber nylon is surprisingly brittle and I’m not a huge fan of it either, but I’ve had great success with glass fiber nylon so far

I can see it now kid... The HOFFMAN AR9! Now make our 3d printers happy, get to it. 🤝

What about glass filled PLA? Have not seen any testing done with it but I'm still starting to use it

Can u test nylon carbon fiber and nylon glass finder filaments in the future

I hope you test out plaster annealing, or remelting as it should really be called

While the testing is great, you need to adjust settings for all different Filaments. You have two different materials that take heat differently. You could adjust for the regular petg to ensure you get smooth prints just like you did for the carbon fiber varient.

I imagine petg is stronger than pla, but js you should see my carbon fiber pla prints. They come out so smooth, they do have layer lines but you can barely see them and it creates a really nice looking finish. I just wish it was more heat resistant. Next I'm going to buy the CF PETG and try that out because there are some weapon accessories I would like to print :)

can you do a test to see how much ecnlosure tmperature affects strength? specially for ABS. start from none to passive to a hairdrier 70c enclosure!

Great job, do Nylon, Nylon CF, Nylon GF,

No Clue on any of this, but I did work in industrial epoxies for a bit. We use to cure molds under pressure at 5x-10x atmosphere... Is that a thing in 3D printing??

Not being able to leave a 3D print in a hot car makes me weary. Do you think annealing 3D870 would help prevent hot car damage?

Did you ever try Esun eSteel Filament?

Do you use the dog bone locking pins for your trigger groups? How do you keep your pin holes from becoming misshapen ?

I think you need to get the petg print better then that to make a comparison.

If CF nylon isn't ideal why are you using it in your Orca? Genuinely curious, I am sure you have a reason. Am currently deciding on which material to make 9ne of your Orcas out of!

What about PLA vs UV and other weather elements?

Hoffman, i ordered a package. I just read the comment about the site shutting down. Can you still make those orders despite the shut down?

nice

I’m looking to print guitar picks, I’m thinking CF is the way to go. From a material perspective in don’t think any other material compares.

What’s the best filament for 3D printing 12 gauge tripwire alarms

have you ever printed a 3d printer to make casting molds for aluminium? You pack the 3d printed lower into casting sand then pour molten aluminum into the sand . The heat of the aluminum burns the polymer out as it is cast and it leaves you with the same thing you printed only now in cast aluminum. It could be a way to improve on your designs . Plus imagine the endless things you could add to the design this way.

I am surprised the CF PETG had more tensile strength. I have assumed the added CF took away from the stickiness of PETG.

Please do a test of carbon fiber PLA

Using the same settings isn't really the best way to compare which is stronger. You should have optimized the settings for each. You wouldn't create a steel beam and an aluminum beam the exact same way and expect accurate results. Their materials have very different requirements to perform their best.

Have you done any tests with the salt baking? I would be very interested in seeing this material tested with that

Seems like when printed that way you are mostly just testing layer adhesion though.

Dude... I'm researching a material to use to 3d print an amphibious airplane... Ya, and Thank God I'm a Crazy test pilot But what material would you recommend to use for an airplane? And No Worries, its on my head..

Is it stronger? That's a non engineering term used often! Should always be followed with a designation like ductile, tensile and more.

Would running the ol' soldering iron across the layers make a diff?

Cant go wrong with e-sun pla+ my brother

Without watching it yet I would say it wouldn’t be significantly stronger between layers due to fibers not crossing the layers. The fibers all essential laying flat and internal in the single plane