Unbreakable 3D Printed RC Car Parts: Improved Version - WLToys 

Hmm okay I see, I haven't notice that with these. I think the HSP Driveshafts are also very poor quality so that might be another reason why they bend so easily

​@@ValRC1The scale factor also metters. And the wheel diameter. For example, I've got a 1:8 scale Remo Hobby Dinosaurs as my daily driver. And didn't experience any suspension destruction yet (most likely due to it being a factory tuning option made of injection molded nylon ). But it grinds cups and T-bones on the ends of it's CVD drives like crazy - and it's not a material quality issue - as all of mine t-bones are replaced with segments of drill butts of matching diameter. Still they last about a couple of months with those huge wheels - with a pedestrian 60A ESC. Was looking forward to move to the metallic telescopic drives for a long time - but the stock suspension wasn't uite fit for the job. Now they've released a new tevision of the Dinosaurs, with the new lower suspension arms which allow for any Slash-compatible telescopes to be installed. So already got the 150A ESC at the shelf, waiting for the new suspension arms to get out on into the market - to both gain some low-end power, and eliminate the biggest factory flaw this model has with it's CVDs not lasting at all.

Extrudr has some Carbon Fiber infused TPU, been thinking of trying that stuff out. Thanks for watching!

I have actually. But for some reason, my parts printed from it weren't very durable at all and even the ones printed laying flat I could just rip apart with my hands 🤔 maybe my PP was just really bad quality

@@ValRC1 that's a bummer. Stefan's test got my hopes up for PP.

@@Curly3107 I bought mine after I saw his test as well. As I said though, might just be bad quality - I bought "Renkforce PP" 🤔

@@ValRC1 I have a roll of "Formfutura PP" lying around. I've been wanting to test it for ages but haven't found a good print for it yet. Now I'm curious to see if it behaves differently. Maybe I will try it next week.

@@Curly3107 I think it would be a great test! Let me know how it goes

Thank you for the video Idea, I'll keep it in mind. I actually got into 3d printing because I saw a couple of videos on it on the youtube channel "RcLifeOn" a few years back, then got a Prusa MK2S as a Kit and figured it all out. Just a few days ago I got a second printer for only 50€ second-hand, might do a video on that as well. Thanks for watching btw!

Yep, thanks for watching!

If the arms are thick enough and you print it in some harder TPU like 98A or 58D it should be fine. There's only one way to find out though!

Thanks for the reminder, just uploaded them! www.printables.com/model/814875-wltoys-unbreakable-arms-144001-124019

Thanks! Yeah 95A TPU

That seems like a great material for stuff like this, but all the filament I can find seems to be way more expensive than normal TPU - do you know any brand making it for relatively cheap?

@@ValRC1 nope sry

I could, but I think the carbon rods would probably just snap if the arm gets hit 🤔

I think I want to improve them a bit more before releasing anything

Unfortunately not, as it's just way too much work to 3d design all the parts

I'm not sure, but if it's not too wobbly it should.

If you wanna be sure it's best to take a stiffer TPU like 98A or 58D

Iirc I downloaded that one from thingiverse

On a multi material printer yes, but maybe the hard asa shell would just break on impact

My idea is based on steel concrete, tensile core, compressive outta casing

Which way do they break in? Have you tried putting droop screws into the holes on the arms to limit the negative shock travel and prevent them from getting ripped apart in tumbles? That fixed the shock issues for me on this car

@@ValRC1 He hits walls in lika 45 deg angle right into the tire and the forces bends the piston and last crash it also broke the eye connecting to the control arm. been thru 4 sets of shocks for the front so now I'm going all in on TPU shocks for the front.

@@ValRC1 but that's a good tip reducing negative travel! :)

Sadly I don't have that car, so I can't design one

Hey, what exactly do you mean by a hole for swing arms? Aren't the actual parts I printed the swing arms?

@@ValRC1 sorry, i meant sway bars

I'm actually not too sure on that.. could cost them substantially more due to being an additional material they need to store and manage.. but yep would be great to see some better arms shipped. Also, wltoys seems to be having some quality control issues, as I showed in the video the older wltoys arms I tested here held up much better than the ones I tested last time, which I got with my newer car..

Handling would also suck

@@stokedGSXR nah it's fine. Didn't really notice a difference. Maybe on a track but this isn't really a competition rc car

they have to make their money

@@ValRC1 what could be a factor, is that plastic is hydrophilic, so over time the plastic gets more flexible due to water becoming part of the plastic. People boil plastic rc parts for the same purpose; to make it more flexible. Not sure but that could be another explanation.