How to Cut Carbon Fibre Sheet and Carbon Fiber Parts (Technique & Safety) 

I work an an engineer on carbon fibre aircraft and would like to recommend the cutting tool I prefer to se to work on the aircraft. I use a Fein multimaster oscillating cutting tool with a bonded diamond blade. Cuts beautifully and you can cut very close to finished size. Bonus is it can be used for finishing too.

The fact that these guys are still recording for us such professional videos in 2021 confirms that the safety advices work :) Thanks!

This is the most thorough carbon fiber cutting video on the net.

Thanks for all the feedback people; it makes us want to keep producing these videos. We have something very exciting in the pipeline now (another big 'project' similar to the bonnet/hood) which I think will really inspire people. Lots of filming and editting to do yet but stay tuned in....

Good video but GREAT index on the side. Easy to skip the safety stuff (j/k)

Answered all my questions. Thank you for a well presented clear video

Thanks David; it's a great product, you'll get on really well with it. Of course we're all here if you have any questions or problems.

I would also advise on wearing something long sleeve, there are very tiny shards that itch a lot and you don't want them on you. It irritates A LOT!

Work through the grits with wet and dry paper. Taking care to remove the scratches from the previous paper. Change the water with each move up the grits to ensure no grit from the previous paper contaminates your part. once you have worked upto 1500 grit, you should be able to polish the part by hand with a polishing compound or by machine, to get a final gloss.

Thank you for your consistently amazing videos, I haven't watched a single one without learning something new. I've been wondering about ways to cut / trim (cured) carbon fiber while minimizing dust, and aside from some already familiar methods like cutting underwater, I recently discovered that people use ultrasonic cutters. Apparently it's a thing in robotic manufacturing ("ultrasonic trimming"), but people do it manually too. They seem to work quite well. You can see one in action here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9cbvcIYuulc.html There is currently not much info on cutting composites with these devices, so I just wanted to say, if you're looking for topics to make videos about it, that one would be quite interesting I think. Thanks again for all your learning materials.

I think it's always a good idea to use skin protection creme to avoid any skin irritation. The dust will come off easier or does it interfere with the cut surface, by which I mean damaging the laminate with chemicals.

Very useful video. Covered everything I need to know. Thank you

There will be a new laminating video coming soon and also a new skinning video (they are two different processes). We've learned a lot over the years, not to mention increased the production values for our videos so replacement videos for skinning and laminating are overdue :)

Thank you for such professional video!

great advice,have had to discover most of this for myself by doing it (for 1/10th R/C car parts) but good to see how the professionals do it-thanks!

absolutely amazing video, thank you for making this!

Very informative, thanks for taking the time to make and for sharing this

Such a great detailed visually demonstrated video!! For a kinesthetic and visual learner that I am, this was exactly the information and type of video I was looking for before starting on my carbon fiber project, Thank you so much for the awesome video!!

IF you are buying a hacksaw, get one with a rectangular frame whenever possible. Older steel tube ones of decent quality work really well. The ones with a semicircular frame like shown here leaves less useful blade length when working on large materials and you cannot use the forward part of the frame as a second handle for the other hand. Also, get one where it can hold the blade at different angles, makes awkward cuts less awkward. Lastly, hacksaws are cheap; spend the extra money to get a nice one. Ignore the bargain bin, spend $10 more and save yourself a lot of time and aggravation.

your company is amazing but are to far from me did you ship to Puerto Rico part of U.S. in case you don't know us

Thank you so much for this video! Spent hours looking at all these other videos without any answers, only to serendipitously click on this video and have all the answers laid out right in front of me. Thank you so much!

It's the new Dremel Fortiflex. They used to be called Motorflexes which were amazing until they stopped making them but the good news is they releaunched it, called the Motorflex. Worth every penny (and you can get all replacement spare parts if you use it a lot like we do).

Great video! it answered all my questions and it was very informative, good job!

So, if sand paper is all right, belt sander and drum sander probably all right too? Besides that, if jigsaw with that kind of blade is ok, what if i do the cutting on table saw or miter saw with a metal cutting blade or diamond blade, or even metal cutting bandsaw, is there a minimum speed and blade choice we have to follow?

Thank you I am building a case for my ham radio and want a carbon fiber face plate this helped alot👍👍👍👍

Pre-preg carbon fibre will have a specific cure cycle. You need to find out from the manufacturer what that cycle is. The same basic concept of mould making and the basics of laminating are still the same. Also the finishing process is the same. The bagging process for pre-preg has some similarities to other vacuum processes but the bagging stack is unique to the process.

Great video Thankyou for this . Material on the way for a small project - this has been brilliant thanks 😊

Extremely well made. I know everything I need too now so Thank you

Yery good explanations.

Thanks! - We can ship to Puerto Rico and for any none-dangerous items shipping is quick and quite reasonable. For dangerous-goods (like resins) it can get a bit complicated and more expensive but most things are possible if there's something you need to source from us. Perma-Grit tools and carbon fibre sheet/tubes etc we can certainly send to you, no problem.

I learned everything I needed to from this one video. Thank you!

Have you ever heard of carbon dust desytroying electric motors or other electric components due to its electricity conducting properties?

this is a critically important videos. i think a lot of people start working with carbon fiber thinking it's as safe as arts & crafts and it's really not

thank you for this video. i am finally going to by a dremel to cut my carbon on my own instead of looking for a company doing this for me.

Excellent video catering for the hobbyist and low output workshop. Perfect for my needs

best instructional on the web!! all the answers in one video great job!!

Thanks. I'm handmaking a guitar with Rick Toone style carbon plates holding the wooden pieces together (mainly because I don't want to spend 15 thousand dollars on a real RT guitar) and this helped me with my game plan a lot...I don't have a proper workshop and most of my hand crafted guitars have been done with hand tools, but I've never worked with carbon fibre before so I was a little concerned going into it. Not anymore though :)

Best video I've seen yet on how to work on carbon. I image that piece of high density foam isn't cheap?

Excellent video! Thank you! 👍👍❤❤

Thanks for such a detailed video, answered all of my questions

Hey, I got some pre-impregnated carbon fiber, will your method mentioned in the video How to Make a Carbon Fiber Car Bonnet/Hood will be right? That's to say, can I use the vacuum bag and cure them like you have done? Someone told me that the pre-impregnated carbon fiber needs High-Temperature to cure, Is that right? Or can I get something(tools or somewhat) useful on your websites?

Thanks a lot Best chanal

Use a tracksaw for flat parts

Great information on how to do multiple different types of cutting carbon. Thx for your tips sir.

Very detailed video that is just what I need, opportunities all my questions. If you can provide under each product purchase brand in that case, we fans won't detour, like carbon fiber cloth, carbon fiber sheet, carbon fiber, and so on, the last time I buy for my car carbon fiber board (brand: fiveeyes) on AMZ, quality are ok, but they only sell carbon fiber board, don't sell other, so need other good quality products.

is it possible to cut straight down the line of the carbon fiber tube?

Thank you so much for this wonderful and comprehensive presentation 🙏 I wish you the best life and all the success in future career ♥️

Back to class🤔

This video is hot.

If only I had this information years ago, I always assumed it was a nightmare to Machine!

Fantastic ...thanks!

Excellent video!

Great video. Extremely helpful. One question though, where can I get/order a foam block like this one? Of that size?

Hello Sir, Can you advice me please how can I get back the shine of a piece of carbon sheet after sanding it. I made it's surface matt with a 400 paper during processing but I think I would like to have it shine again. Is there a simple way? Thank you for your reply in advance. Adrian

OMG - what is a clear, concise, well-edited and thoroughly professional instructive video doing on the same RU-vid we know for hillbilly gasoline substitutes and lizard people warning about the pending collapse of the economic system?

Wow, this is fantastic! Exactly what I was looking for! :-D What would you advise for drilling small holes, e.g. for screws, panel lights or switches?

And another follow-up question please: How do you know where to cut the hole into the 3D piece? Would the hole be modeled as a depression into the pattern (that is, surface closed from the backside), so that the mould gets a (flat? high?) raise where the hole is, so that the new piece has the guidelines for cutting "built-in"?

Great work guys thank much!!!

Thanks a lot!!!

Great, thank you for the education

This video it’s absolutely fantastic! Impressive, really! Thanks for your help! 👍

I love the videos you guys put together. By far the most informative, and best production quality.

Ottimi insegnamenti 👌🏻 Grazie 🙂

please sell CNC cutting tool for composite :) diameter is 3- 4 -6 - 8 - 10 is perfect.

Hi guys! i've watichning for a couple od years. What about cuting and trimming Carbon/Kelvar hybrid composites? Regards form Poland!

Great video. I have this insane idea to buy a pre-2019 Audi RS7 or S7 and cut through the CF diffuser so I can install the trailer hitch from the A7 on it(the A7 uses a plastic fascia). That way I can still use my bike rack and possibly tow my motorcycle. Having watched this video, I now have confidence that I can cut it out cleanly and easily with a dremel, sand it down, then put epoxy on the edges so snow and rain can't damage it. yes, I am completely aware that cutting through that diffuser is absolutely insane

Just the video I wanted, great info 👍🏼

Thank you.

This helped a lot! I'm planning on cutting down the carbon fibre sideguards from my current wheelchair to use on my new one when it comes to match my wheel profile. I wanted to make sure I wouldn't ruin them and this video answered all of the questions I had!

Thanks very much for an informative, interesting and thorough tutorial. I can finally cut my carbon fiber using my rotary tool and hand saws with confidence.

I was worried I might be getting in over my head without CNC milling capability, this video showed me that carbon fiber is probably easier to work with than metal with the tools I have, excellent.

Very informative video and helped a lot, thanks! What would you suggest is the best/cleanest way to countersink holes in CF? And are there any bits you could suggest? Thanks!

thank you for this information!!!

Thank you! You just saved me a ton of money having to pay for custom work on a relatively simple project!

Untuk core busa berapa tekanan vacuum infusion pak?

Great video! Thanks

Fantastic Tutorial! Thanks!

Great, efficient and very useful video. Thank you very much!

that was brilliant

thank you for your video. Very helpful.

Superb video! ✊🏻😊 - Thank you

good vid! thumbs up!

cool thanks for your time!!!

Brilliant video and information, all the concerns I had, have been covered! Top Class!! :) ....Thank You ...

very good Caya you explained, I have started learning and have produced carbon for my own use.. I have already repaired my cracked bicycle frame, so I don't need to send it to the shop to repair the crack, the first time I use this carbon, right? my body is very itchy. but from there I started to understand that if it is ready and dry, if it is rubbed, the dust can fly and stick to our body parts..anything, thank you for the way of using this product..very good,,, ,#stay save covid is still there we are almost winning, we have not won against this covid19..#to those who died due to covid condolences to their family members# very grateful for the useful knowledge from you

Would I also be safe if I just work out side in the open air?

Excellent video! You answered a number of questions that I had. Will proceed to your website. Thanks.

Extremely useful video for us Joe Blow DIYrs 😅

Hello, I am conducting experiments on void content in carbon fiber with the use of microscopes and microscopy. I will be cutting out test pieces from carbon fiber blocks.How do i polish the cut side of the carbon fiber in preperation of the analysis?

Would a rotary tubing cutter work on the extruded tubing?

Great instructional video. Much appreciated!

Great share, nicely done. Seems I'd want to take the CF dust control to a higher level. The good respirator - I totally agree. But I would seal eye areas because dust gets right into eye fluids. Then, use a shop vac seems bad if CF dust goes through filter and then shot into room's atmosphere. What to do with dust that is collected? Seems to be like nuclear waste, it will always be with us. Dump it out back where it gets into the watershed? I am cautious about this stuff - seems easy to have an incident you won't realize until well down the road when the equivalent of mesothelioma kicks in. There was a lot of loose dust sitting on the foam board after you post-processed the items, to deal with.

Just love your work Explaining all the way Well done Must watch all YOUR videos 📹 😉

How about cutting it wet would it be a viable option too? For the drilling perfect holes you should clamp it between two plates of wood and drill through the wood. I think it would work as fine as drilling multiplex/balsa wood by using scrap wood to prevent multiplex/balsa from chipping

This is the most informative and helpful video I’ve ever watched. THANK YOU

I cut my rc-chassi with an angle grinder and the same metal wheel that sat in the machine when i fetchd´'d it :) no respirator or gloves... hehe, well, we all die in the end.... be safe kids!!

Awesome video! thanks a lot :D

Any specific cutting disc for my angel grinder? Thanks, great video!

thank you for great presentation

Pro tip for dust filtering: Don't cut the hair in your nose. The hairs are part of the natural filter. Wearing masks is recommended anyway but if there is an unnoticed gap, then it will help you.