What is the best material for FPV drone ducts? | Material Testing [Part 1]
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- Опубліковано 7 лют 2025
- Man, this was one hectic video to film XD.
During my hachidorii V2 testing, I realized that 3D printed ducts were much more viable than I gave them credit for - It even came to a point that I genuinely was curious how far we can go with them and how well they'd perform as 75/65 ducts. I wanted to find out which material was the best. Naturally, I thought to myself that ducts should give some degree of protection to the motors and propellers for our whoops - so this video goes over some tests related to the material's stiffness and weight.
For our samples, we tested PLA, ABS, PETG, HP PA-12, PC, ASA, and the Mobula 7 V2 and V4 ducts in three criterias: Weight, Axial Bending [Squish], and Tangential Bending [Flippy-Floppy]. Yes, I gave those tests those names XD. These three tests will help up guess how these ducts will perform when load is applied to them - similar to how they'll react during crashes.
Random thought but I might redo the Squishiness test - this time using calipers. The values I got were all very close to each other given that I was only using a ruler. Well see in part two but this should suffice.
In part two, we will intentionally crash my hachidorii V2 build using the different samples to verify if the data we got from this first part is correct and to identify other important information like durability and type of damage we can expect from each material.
*DISCLAIMER*: Filaments come in many different variants and will have different characteristics depending on the additives blended in. These are just the results I got from the samples I have and your results may vary.
Thank you again to @PCBWay for helping me manufacture these ducts! I've tried their 3D printing, CNC, and metal printing - and I genuinely am excited to get to work with them. This video would've just been "PETG vs PLA" without them XD. If you guys need something made, perhaps for a personal project, I highly recommend them!
Timestamps cause this video is too nerdy:
0:00 Introduction
1:01 Storytime
2:02 Benefits of Printed Ducts
2:57 Methodology
5:12 Is this a reasonable methodology?
6:04 Test Samples
10:23 Weird Tangent
11:50 Data Presentation
16:46 Summary
19:55 End of my Yapping
Important Links:
CNCKitchen's Channel: / @cnckitchen
PCBWay's Website: www.pcbway.com/
Gsheet of my Data: tinyurl.com/4j...
Hachidorii V2 75 Ducts: www.thingivers...
Buy the Hachidorii V2 Frame: cncdrones.com/...
My Socials:
LinkTr.ee: linktr.ee/rice...
IG: @sleepyboi.o_o
Rotorbuilds: Rice_Bowl
Thingiverse: Sticky_Rice
Printables: Rice_Bowl
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Waking up and the Video is out. Yes. Havent watched it but already excited for the second Part.
thanks for the kind words man I appreciate it! Gonna be working on it when I get back home! lots of slow mo stuff XD
Wow man your videos are getting really impressive. Love the analysis, style, pacing; You're crushing it! I learned a lot in 20 minutes👍👍
And thank you for watching and supporting me man! Making these vids is fun but you guys make the extra effort worth it!
you are underrated. the video was really well put together
Thank you for the kind words fam I appreciate it! Actually really fun putting these together so I'm happy you guys enjoy it.
Second here :-) Shared your video on facebook to support your work my friend. Great work!🤜🤛
Yall are so fast XD. Thank you so much fam! Looking forward to watching your recent vids too!! Great work aswell and as always my guy 🤜🤛
Great to see you here! Any plans of getting a Hachidorii v2? 😃
Great video and even better thumbnail!
Come on, subscribed and waiting for part 2. Need to replace my ducts soon.
thanks man! highly recommend using ABS, Asa, and some people say they like PETG
Looking forward to pt. 2!
Will continue work on it when I get home next week!
A very insightful video dude thanks for sharing this info👍😎👍Looking forward to part 2 by the way have you ever tried using PLA+??
You're welcome man! and thank you too for watching! I'll be updating the gsheet soon for PLA+ and The Air75 as new additions but not entirely sure if they'll be part of the video - we'll see depending on how diff they are from the current lineup
@@im_ricebowl Cool!
First here! Love the testing! Best content here.
@@JUST_SID_ So fast man XD Thanks for the support and for watching man!
@@im_ricebowl You should try TPU 97A, it's pretty stiff yet flexible, and even LW PLA, though it is quite weak.
@@JUST_SID_ Gonna take note of that 97A for future testing. LWPLA may be interesting cause we can thicken the duct a little more. I will be trying soft PLA soon too!
@@im_ricebowl Yeah, include them in pt 2 or something.
Awesome work, great data!! Thank you. You made me wonder about hybrid printing ABS and PLA. Have you thought of experimenting with this? It's mostly not recommended because of the big difference in temperatures, etc. but sheesh, it would be great to see if a mostly ABS print with strands of PLA embedded near the outer layers of the print performs well.
I've mentioned "we" a few times in this video and this is the exact thing the other person is literally working on rn 👀 they're working on having multiple materials to see how it handles. I'll let you guys know how that goes once we get compelling information for it!
Thanks for watching fam and for the kind words!
Awesome video! Great testing thanks!
and thank you for watching man! I appreciate it!
One thing I couldn't help but think was what if stiffness wasn't the most important thing. So the question would be what is the minimum stiffness that still applies protection while being the lightest weight.
Bingo! that is why I mentioned PLA was the unofficial winner cause in reality, it should really be a balance of weight, flex, and stiffness. Though your suggestion is a little hard to quantify, part 2 should be able to shed some light on the necessary minimum stiffness. Really nice insight which I'll take note off. Thanks man!
@@im_ricebowl I was thinking the same. From my experience, the Meteor 75 (non-pro) frame protects props better than the Mobula7 v4. The Meteor 75 is a biiit more flexible, while the Mobula7 v4 tends to bend during hard crashes and sometimes stays deformed, causing the 40mm props to scrub against the duct edges. We need big coorporate testing like the Samsung Fold's being folded 100000 times 😁Looking forward to part2
@@aulma_fpv interesting. I believe in my class that was called "Plastic Deformation" where there's a certain load where a material will remain springy and return back to its original form. And after a certain point, it doesn't return to its shape. That could be smth I include in part 2. Thanks for the insight! I'll ponder about that XD
It would be really cool to make a quick release for the ducts so you can print 20 and just snap em off and snap a new one back on when they break
I was actually thinking of something like that just recently but still got no solid idea how to do the latching mechanism without adding too much weight. My last idea was similar to those 3d printed buckles but instead of 2 prongs it's 4. Great idea tho! smth to think about for the future XD.
actually an idea just sparked XD imma write this down for future reference
@@im_ricebowl it'd be cool for.sure. Maybe some type of crab style pinch on the 25x 25 posts?
@@Shauny_D I get the crab style pinch, that could be a good design choice. Thinking of having slots on the duct for the flexing parts to lock in. That way, it's also at the optimal height regardless of the FC stack size.
will get back to you about that actually, maybe smth for V3
@@im_ricebowl yes! That'd be a great feature. I could see myself bringing 3or4 ducts with me for breaks but then also popping them off if I'm outside and wanting that tactless freedom.
@@Shauny_Dthat would actually be really convinient too for repairs. No need to transfer a whole drone to a diff frame if the CF fra.e. the age of whoops with removable ducts is close. I can feel it 🤣 Really cool concept tho I'll defenitely be tinkering around that idea for the next weeks. I'll let make some updates when I make progress on it 😉
Nice, thanks for sharing! Maybe LW-PLA might be interesting to test. It foams up during printing and has only around 50% the weight of normal PLA. It's made for printing planes and such. It's less strong, but might work for this type of round thin object.
actually someone also mentioned it and I may give it a try one of these days when I get to. I suggested that it would be cool to thicken the ducts a bit to see if it can hold up crashes too. Thanks for watching fam!
Just received my hachidori frame few days ago, still in my build queue 😅 have not decided what motors to use
Eyyy thanks for supporting me man! no rush, if you need any help just hmu in IG or discord. If you want to cruise or do simple flights, 0802. If you want punch and power, 1002. People have build both analog and HD builds too!
subbed - great job - thanks for the effort
I do what I love XD thanks for the sub and for the kind words fam!
I recently ordered some polypropylene because that's what my favorite whoop frames are from. Do you have access to any? May be a good option for ducts and canopies.
I actually really like polyprop! I haven't tried it in filament form yet but it's common for other injection molded whoop frames like the cockroach (I think). Would be cool to try it out so I can expand the sample data more. I'll take note of that. Thanks fam!
In my experience abs is not as crash resistant as PETG, it turned out to be a really bad choice for almost every part I needed to print, mounts, ducts, etc. Si I guess it depends on the brand too. The ones I have are kinda garbage.
Yeah, maybe we can slowly pinpoint the ideal brands for each type but we'd slowly turn into a 3d printing channel XD. I'm gonna try out some brands in the future so we can atleast get an idea of what we can use. Thanks for the info fam!
@@im_ricebowl another experience I have is printing nylon, supposedly PA 12 is way better than PA 6, well again, Esun PA 6 turned out to be incredibly better than PA 12 of a lesser known brand I tested. Keep the good work bro.
@@WKfpv ohh cool cool imma look into that when I fix my filament storage XD. Would be cool to try out nylon too for other parts of the drone like the arm end guards or mounts. And thank you for stopping by my guy!
thanks for wearing a mask so my computer doesnt get a virus
funny enough I was sick the first week of my travel XD
Why did I not print any of them out of ASA or ABS?? I have so much lying around :)
we all make mistakes in the heat of pa- printing, I mean XD
Do you know any alternative carbon frames to buy?
If you want ducted whoop frames:
- Fractal 75/65 (fractal engineering)
- Hachidorii V2 (by me)
- Quattro V4 (Spezilover)
if it's open prop micros, you can try:
- Nuffin (daodesign.sg)
- TKS (and other frames made by jacks3dprinting
- Odonata
- Baby Turtle V6.1 (sub250gFPV)
Hi what are youe favorite motors for a 2S 75mm build?.
I've haven't personally flown a 2s Hachidorii yet but a couple of my friends have tried 0803, 1002, and 1102 motors and I think the 1102 can give the best feel especially paired with a 3-4 bladed 40mm prop. I do have plans on Hachidorii XL for 2in but that's still in the works
3d printed frame when?
@@Liimed_ you're a few years late 🤣 then again, the one I made before was half 3d printed and half carbon fiber rods. I honestly don't think you can get great purely 3d printed frame at this scale and there's just too many downsides. played around with that concept for 3 years before I got my cnc
有益な情報有難うございます。
私はナイロン（PA6-CF）がダクトには最適だと思います。割れないので。
そして私の友人を見てくれてありがとう
I hope I said that right 😅😂
I might give it a try so we can have more samples for the excel sheet. would be cool to see how it'll perform - even other types of CF added filaments
@@im_ricebowl Thank you for your reply. I look forward to reading more 😊
Great video and even better thumbnail!
My friend was forcing me to use Canva for the thumbnail cause I kept showing him samples but they were in MS paint XD