Raptor I: 3D Printed Dual Wishbone Suspension
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- čas přidán 13. 09. 2024
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In this video I update you on my progress with the RC car build. I made some significant changes to the rear subframe since the last video. I have decided to implement a 3D printable dual wishbone suspension system. This is a large improvement over the last version of the car, mainly because the camber of the wheel is now constant irrrespective of the suspension arm angle. This should deliver more grip and even tire wear. Another change I made was positioning the shock absorbers in the center of the wishbones, the provides an even force on the hinge and just more stability overall. My only concern at the moment is the strength of the small plastic knuckle parts, they will be under considerable stress when driving.
Nothing is final of course, and I won’t know how well this works until I take the car for a blast.
Parts:
- 4 x ProLine 2.8" Trenchers
- 22.2V 5000mAh 65C/130C LiPO RC Battery Giant Power
- FlySky FS-R6B: www.banggood.c...
- Matek FCHUB-6S: www.banggood.c...
- iMAX B6 80W 6A Lipo Battery Balance Charger: www.banggood.c...
- Racerstar 120A ESC: www.banggood.c...
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Would love to have a studio / setup tour. Great video !
Really interested in your build.
Have you considered how you will add Caster on your front axle? Incline on the bottom tub or modify your a-arms to add in the caster angle?
For a future iteration perhaps consider using rod ends as the pivots of the suspension arms, this gives you adjustability on camber and a smaller footprint allowing more steering angle. Just some suggestions as I am really curious to see your build go forwards.
Seems like a much awaited video ❤️🤘🏻
Nice work and great video as always!
Really nice
Hi, it turned out cool!!! Is it possible to make the scale bigger and change it to segway ninebot mini-pro?
Great ! You gonna use 1 or 2 servos to turn the wheels ?
is the motors straight on the wheels? how will that affect handling? Assuming the motors arent super expensive, they will have slightly different speeds and the car will pull to 1 side or the other?
Great question! This isn’t going to be your typical RC car, I’ll be using a microcontroller to interface to the receiver and all the other electronics!
I’m going to use a PID control feedback system to measure the RPM of each wheel, that way I can adjust the power precisely so that they’re all travelling at the correct speed! This also opens opportunities for steering differential and many other cool features!
@@thehardwareguy and true 4wd :D
This sounds so cool
Sir can you please send me the 3d model of the RC car and it's components as I am unable to pay the money .I am a student and I live in India and love your videos .
I dont want to be a negative nancy here but why are all of the 3D printed cars going full balls out right from the start? When i got into RC cars in the early 80s there were NO reliable 4wd cars out they ALL had issues much like these cars. Start slow and let the printing technology catch up we already know the good designs of 4WD rc cars we can buy them now. Start with a 2WD and keep the moving parts to a minimum and broken parts to a minimum. I was excited to see your rear design and i think this is a HUGE move forward till you started talking about putting 2 more motors in the front this IMO is only going to slow down the progression because trying to design the technology around a fast spinning motor and turn it, with suspension IMO is going to be a nightmare. Your forgetting about the mass of this spinning motor already being held together by weak 3D printed plastic stick with 2WD and build off of it as the printers get better.