I 3D Printed RC Car Tires... Will they survive???

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[LockMart]

As always, we have to praise the cameraman for standing on top of the RC car and recording for us.

[Tekkykek]

For your tires, you should try the Fuzzy Skin setting (if you use cura). I've printed things in polymaker TPU that are extremely slippery normally, but have much better grip with the Fuzzy skin setting enabled. I'd imagine that VarioShore would have even better results.

[GetPoiPoi]

whats happening at high speed is ur rear wheels are loosing grip so u spin ur tires and loose control a rear wing but dont go too overboard on the rear downforce cuz then the front wheels will lack grip from the balance being moved. hope this helped and made sense :)

[rtwolfrt]

Honestly the instability looks more like a suspension geometry issue to me.
Most RC cars will run a substantial amount of toe in on the rear.
I think this may help with your stability problems.

[omnipotentgoku]

I've got four FDM printers and I've just never seen a reason to pick up a resin. I think you may have finally opened that door for me. Interesting build, subbed

[meltdown]

For stability a bit of toe in on the rear and neutral in the front would help. You already have positive caster in the front, that also provides more stability. If speed is the goal then a longer wheelbase also helps. And with a RWD car you also want to have the weight near the rear axle. RWD buggies often have the motor behind the axle to provide optimal weight distribution for that setup. And a common misconception regarding aero: you don't want that much downforce when going for speed, you want stability. So fins are a good idea, flat underbelly and a bit of rake to keep the car stable. When using wings you basically are putting variable levers on the front and back - especially bad if you go over bumpy-ish surfaces at speed. If you want to see what the results of bad aerodynamic balance can be: google Peter Dumbrecks Le Mans sommersault from 1997...

[MCsCreations]

Brilliant work, Michael! Really well done! 😃
Your sponsor has 3d printing with metal, also CNC I believe... I don't know, perhaps it could be a good idea for some parts. 😉
Other than that... Looking forward to the 4x4 version!
Stay safe there with your family! 🖖😊

[MrGothicruler]

I love how Scarlet Fire goes so well with abusing plastics 🥰

[bender]

3d printing the hubs and placing them in a mold for silicon casting is something I've seen a couple other people do but I'm not sure they would work at the high speeds you're aiming for. Great work so far and I'm definitely interested in seeing more done with the gyro!

[FRepix]

I love your videos about the 3D printed Car!!! I neeeed the next parts please

[amartinez]

My 7 year old son loved this video and can't wait to see where this project is going.

[rajgill]

I saw your other vidoe first, and the way you take comments into account is great!! Keep up the work you totally got this

[WheelRC]

Cool stuff! Subscribed and following this Project. Can't wait to see V3!

[pv]

dont get demotivated... i think you are really on the right way to make your 100 mph! just stay focused and improve your desings over and over and in the end you will reach your goal! like jimmy cliff said: you can get it, if you really want! 😄

[peacengineer_]

Please look at this comment:

1. You should get a better wheel and cover them because most of the friction takes place in the wheels.

2. In your first video you shortened the width ( I think it was from 11 to 9 inches). This actually makes it less stable.

3. Get a better speed controller and electric motor. The 2 LiPo batteries are overload for that small motor.

4. The suspension is not enough. A small (if possible hydraulic) shock absorber with it would soften the ride.

5. The gyro can sometimes mess up with how you control the car. You should definitely fine tune it.

6. The chassis should be closer to the ground. This can maybe damage the car if the road is bumpy, but it really helps with steering.

7. If possible use metal shafts and gears (so it would be stronger and easier to lubricate).

That is all. Please consider my advice and comment...

[StormBurnX]

3:17 absolute dankpods moment, we love to hear Scarlet Fire

[thechannelx]

Dude, so well done, it's very impressive! Switch to FPV sooner than later, that will help. The gradual reduction in steering with speed is a must, you are oversteering now at high speeds. The car seems to float / airlift at high speeds, which is def an aerodynamic issue. Add those wings. Get inspiration from the new Ducati Streetfighter wings. Lower the COG if you can. It feels like the COG is still very high, sitting well above the wheels. Largers wheels would allow your COG to sit *below* wheel level. Just tips :)

[solrax]

im actually loving this project. Easy sub

[Buffetology]

Awesome video! I subscribed and hit alerts so I can see the 4wd version of this build!!

[josephnicklaus]

one thing to help with the aerodynamics would be to make the center of mass closer to the ground (make the suspension ride lower).
this would also help with the handling.