Fiberglass part on a 3D printed mold. Basics of composites 2: Сomposite materials body armor 

Please, ask your questions about composites here. The answers will be in pinned comment.

This man needs more recognition for what he's doing. Keep the great videos going.

Good to see you update! Your stuff is always fantastic and highly informative

I just stumbled across this video while researching using a 3d printed buck to make composite parts, and I've got to say this is an absolutely amazing video from content to production quality and I learned a bunch watching it. I'm off to check out your other stuff now, just incredible work, thank you for creating these!

FAQ UPD: February 9, 2023 Guys, thank you all for your questions and advices. You are the best! Alex I cant see your videos? Guys, please write in comments if you have any problems with access to my channel and videos. I noticed that during last year most of my subscribers cant see last videos. What about the Iron Man suit? I'm working on stuffing. The main problems are power, thrust, and heavy installation weight. The full metal shell is a bit tight. When I made a head and rode in it, I realized how heavy the suit would really be. Actually, the composite season is consequence) But do I understand correctly that if I make a suit from a composite, it will not be considered that I made a suit?) Why don't you fire fiberglass before laminating? Because for some reason I did not know this) Seriously. Thanks for your comments. Now I will burn it all the time. During production, lubricants are added to the fiberglass, most often paraffin, so that the fabric does not fray. This paraffin impairs resin adhesion and penetration into layers, weakening the structure. Therefore, before laminating with epoxy, we need to burn the fabric with a burner. The fabric smokes, smells of paraffin and becomes more transparent. Or we laminate with polyester resin, which dissolves the lubricant itself. Do I need to turn the sheets at 45 degrees? If there is a need to achieve stability of the part to torsion load, then yes. In the case of a shockproof plate, I considered that this was not necessary. How many layers does it take for a plate to stop a bullet? About 30 layers are used in Kevlar armor plates. Kevlar is much stronger than fiberglass. Therefore, making armor plates from fiberglass is not justified. They will be too thick and heavy. Kevlar is available on Aliexpress. Given the price per meter, one plate is obtained from $ 500-600. How many layers do you need for an e-bike frame? If you take the same structural fiberglass, then from 3 to 5 layers. Depends on geometry. In any case, before making the frame, you need to make a pipe probe from a composite with the same cross section and do strength tests. A little more will be in part 4. Do you use the metal mesh you showed in the shot? Sometimes I use. It can be laid not over the entire surface, but for example along the perimeter to strengthen the edges. On the plus side, it adds stiffness and the details don't paint at the edges under load. Of the minuses, the grid fits harder than fiberglass. What printers do I have? I use Creality Ender 3, Ender 5 and CR10 printers. Ender 3 is the cheapest and most versatile. Ender 5 is more expensive and the table is slightly larger, but the main thing is that the table only moves up / down, which makes it much easier to print high details. CR-10 is also normal, due to the huge table, but you have to conjure with adhesion every time. And again - the larger the table, the stronger the garage is heated. In short, Ender 5 is my favorite. Want to learn more information about printing - @FranklyBuilt is unleashed source of practical knowledges. youtube.com/@FranklyBuilt About PLA and ABS. Apparently I got a promotion on local market and PLA was much cheaper than ABS. Therefore, I bought it 8 kg and still use it. If we are talking about this particular detail, then there is no difference at all. I don't like ABS because of the fuss with adhesion, especially on the CR-10, which has a glass table. Even if the details are very tiny, then PLA gives out finer detail than ABS. Why should the weight ratio of resin and fabrics be the same? I took measurements of weight, strength and different ratios. As a result, 50/50 gives the best ratios. Strength tests will be in 4 parts. Why didn't you use vacuum lamination? I have a vacuum pump and everything for vacuum lamination. I'll show you in the next videos. This time I wanted to get by with a minimum of tools to show how simple the technology is. Every day I watch how various unnecessary stuff are printed on 3D printers. I want to show how applied a 3D printer can become if printing is supplemented with composite materials. Why do you need composites when you can just print a thicker part with 100% infill? Composites give better strength to weight ratios. A thick part with 100% filling will in any case be inferior in strength to composites. Have you tried carbon threads filament? Yes, I tried. The products are stronger than ABS, PLA and Nylon. But the main point of carbon fiber is the strength of carbon threads. That is, the part is strong due to the fact that solid carbon threads pass through the entire part. If the same thread is chopped into pieces and added to a thread for a 3D printer, then the whole point disappears. What software do you use? Video editing Final Cut Pro X v.10.4.3 www.apple.com/final-cut-pro/ 3D modeling www.blender.org/ www.autodesk.de/products/autocad/overview 3D Modeling AutoCAD 2018 Pre-print slicer ultimaker.com/software/ultimaker-cura Graphic raster editor www.gimp.org/ What are you shooting on? Computer: MacBook Air 13-inch, 2017 Camera: Panasonic Lumix DC-GH5 Body Lens: Olympus M.Zuiko Digital ED 12-40mm F2.8 PRO Microphone: Boya BY-M1

New video = better week. thanks

Good to see that you're doing videos again. I love watching Russian Tony Stark.

Always inspiring and enlightening. Keep up the excellent work.

You could also heat up to soften thicc polycarbonate sheets over whatever shape you want. It is also very protective against any fast moving branches that might hit you during mountain biking.

Arguably one of the most best youtubers I've found. So glad to stumble across this series. Keep up the good work.

he focuses on quality instead quantity. 👨‍🔬

Man that carbon-fiber iron man helmet looks so sick

I've never heard of your channel, and I am only 3 minutes in. Wow- your workflow and presentation is absolutely blowing me away. You are awesome man!

So happy to see you're still active man!

Now, to simply apply fibreglass to a clone trooper helmet for airsoft protection. Excellent tutorial!

Great to see you back @alexlab !

ну как обычно, посмотрел на русском, теперь надо посмотреть и на английском :) спасибо за видео as usual, looked in Russian, now need to look in English :) thanks for the video

Heck yeah! I love this channel, and I love working with composites. This one hits the spot

One day I will build something and your knowledge will be part of it. Thank you for your service to the planet.

LOVE THIS SERIES!

I'm working on something of my own, I've watched all your videos and I really appreciate your work!

MOM WAKE UP ALEX UPLOADED!

This video revolutionizes repeatability in making parts, as well as costumes. I have struggled for so long trying to make a reusable mold for parts. And here, all I needed to use was scotch tape. I can't believe I didn't think of this!

Amazing content! Keep up the kickass work!

I just found this channel. This is great content and educational. Cant wait to see more!

Another great video alex

Oh shit, glad to see u back!!!

Awesome stuff boss! keep up the amazing work!

SO GLAD TO SE YOU BACK!!! Love the video... also I had a question but its not really about composits, are you ever going to make a video on your dave lawton electrolyzer? I am currently working on recreating one myself but a video from you about it would be super cool!

Awesome i hope to see a fiberglass guitar someday

Fascinating stuff !

thanks for the videos.... i wish the views come back to their former glory

missed u bro...good to see a u back with a new video🗿

These man need to fly soon

Top quality content!

Your videos are so great

You are great brother 🤞🤞

after a very long time.😍😍😍😍

Bro I thought that you were dead good to see that ur posting again

Great content bro, keep it up 🔥

I love alex lab

Pretty cool!

Welcome back!!

Very nice video as always, you should invest in a vacuum setup to make the composites. Can be used to de-gas the resin and then with a vacuum bag setup will make the end product also more compact with less excess resin and should help increase the quality and strength of the end product.

I can't wait for strength testing. Have you worked with vacuum sealing to remove additional air bubbles from the resin?

I already want to see the functional iron Man thrusters to fly ant the complete armor.

You should always apply high temperature to the cloth before use. To remove wax which prevents from good adhesion

Love your work! I wish we could work together some day.

Acompanho todos seus vídeos estou aprendendo muito e descobrindo novidades gostaria que postasse vídeos mais longo com 40 minutos ou mais seria ótimo

he's back!

Great!!

Amazing

8:54 Why didn't I think of that? 11:47 You used wedges to separate it. Smart.

Hello Alex love from India

Hes back!!!!!!

Dude, you should try making a liquid oobleck armor

Yo @Alphazed this guy's improving on your armor.

nice vid

Very interesting video! Also, I'm very happy to see that you are ok. I was worried, you might have been drafted to fight in the war 😔 Stay safe and keep up the good work!

Big up belvita.

Big fan from india

Your drawing is too good how can we draw like you

Dear Alex, I am a big fan of your work. Been following you since 2021. I just have one request, please upload more frequently, like your attitude and all a lot. Lots of love from India❤️❤️❤️

how do i order books? i want to support Alex! and maybe build some cool stuff. this has given me some ideas for my track bike. excellent videos Alex keep up the great work

Красава

Hi bro I am from India

❤️

Which version of Autocad is that? I am using Autocad for 2d drawings every day since about 2006 and although I am paying for the newest version every year.. my UI looks completely different?! Is that just a different workspace that doesn't come with my suit?

Ждал долго брат

My question would be, why not use 3d Printed part directly? Strength I suspect?

Is it possible to make the iron man suit fly ?

ChatGPT is your Jarvis now!

Sir I want to learn detail making process of repulsor please sir provide a detail video on it

What model is that powered unicycle? And how would you rate it overall, using a scale of 1 to 6. 6 being you can't live without it, and 1 being you wouldn't use it at all.

I honestly forgot you can use Autocad to make 3d models. I always used solidworks for that. Or fusion360

How much pascal can this combination resist without going past the failure point. Calculated from the perspective of a sudden impact force. Like the pin drop test you did in your material video. And what is the scalability regarding adding layers, does the added resistance per layer added diminish? To state simple is it more resembling of a square root curve or more linear. And what is the total Newton that is transmitted to the body behind it? And lastly, does the electroplating process add any additional benefits or would simple metal paint do the job at this point? To add some background info. I am building a modernized samurai suite that will be used in a theatrical play (it can not be overly heavy) but due to budget, it will also be used outside the play in a life demonstration at the local Renaissance fair. Where we are putting up 4 era's of armour technology against each other. 500 Anno Domini (AD) 1000 AD 1500 AD and last but not least the one i am making 2000 AD. I am allowed to use all modern knowledge so these past few videos are an absolute gold mine. However, I am not in a place where my current composite can handle sword slashes and stabs and the impact of a rubber/steel blunt point arrow. So the answering of these questions could reall help me flush out my own needs. @ALEXLAB

wait! cool

При работе с файбером надо быть в гидрокостюме😄😄😄

Your fucking amazing!!!

What material u are gonna use to make it bulletproof, i addice use the titanium alloy

My favourite tings of my life ( Iron man 🥺)

Why cant we let air mix with epoxy resin mixture?

Sir I want to make a 3d model in real life like you have make it but I am not having a 3d printer and I want to make a fiber body meterial how can I make can you please explain ?

what cad software is he using?

Complete the suit.

I am a bit offended that Rhino was not on your list of 3D tools, it is used mainly by the naval industry because it sits between the exact measurements (and limitations) of Parametric CAD and the flow of liberty from mesh modelers.

Hello

Are you using d3o? That's f cool man (i Don't understsnd Very well)

How do I work with you sir?

21

Still waiting for the full iron man suit

I don't quite understand the hydrogen reactor I mean how does it work

Do you think that 30 dollars worth of materials can make something bullet resistant?

Why your English channel is neglected? We have very few videos and rare compared to the Russian one.

Что с проектом костюма железного человека

How many years do u want to built a iron man suit

Make dummy robot

Переобулся так переобулся

please make it faster

every video his beard gets bigger, has anyone else noticed that?