The pointy tip of your design is very sensitive to the direction of the oncoming air. Consider rounding it more. Forcing more air under the car might also increase the Bernoulli effect below the car, but better validate CFD.
Round it more when looking from the side right? I have been meaning to check the pitch sensitivity of my more recent designs but haven't got round to it yet. Maybe this week! Thanks for watching 👍
@@steveeng1826 Yes, it should be sensitive to bumps in the road. Rounding the nose more when looking from the side should fix that. You have got a nose like 🏎️ and you probably one want one like 🚗.
@@secretbassrigs this did cross my mind but I decided not to because I didn't want the extra weight and complexity. Plus if I can get the aerodynamics to work it would give downforce for free! Try it and let me know how it goes 😀
@@steveeng1826 there's an obscure AI maze race called MICROMOUSE that basically uses electric cars as Mice. it seems to improve traction and torque as much as it prevents "blowouts". good luck!
Nice to show the iterative design cycle. BTW, what CFD software are you using ? I know that it's a question of taste but is the background music ireally necessary ?
@@peterfelecan3639 hi and thanks for watching, yes I've been excited to show the iterative cycle, in future videos I plan to show how it went because it's moved on a long way from what I showed here. Thanks for the comment on the music, I think some of what I've used worked but not others, I'll be more picky with where and what I use in future! Using Simscale for CFD by the way which is free for your first 10 runs (with numerical results).
Youll need a solution for your wheels. You cant 3d print something that can spin at 200 mph without flying apart. Even car tires with reinforced vulcanized rubber and steel rims need to be specially designed for 200 mph. Check your Aero stability too. Are those tail fins big enough to keep you straight and will you flip up like a Mercedes at Le Mans when a little wind gets under the car? if you find your motors shattering magnets and bending their shaft JustCuzRobotics makes some hyper durable brushless motors for a premium but they're custom made to be high speed hub motors.
@@Drawliphant thanks for watching, yes I'll be using off the shelf wheels for this car rather than 3d prints that should be capable of 200mph. I haven't got a way of simulating lateral stability so I'm going to have 2 sizes of fins and the option to have up to 3 of them! They are definitely necessary, I ran my old car without them once and it went all over the place then crashed.. I think I have a solution for getting balanced downforce front and rear but will have to see how it performs in real life! Cheers for the tip on the hub motors 👍 Steve
Hey, thanks for watching it! Actually it does have an innovative leaf spring type suspension system of my own design, I'm looking forward to showing that in a future video. The bearings are a concern, they were on my first car too although they proved slightly more durable than the spindly 3mm motor shafts! The loading direction is better on the car than in a drone (radial rather than axial) and they have a 175kg radial load capacity, so I'm hopeful they will be fine! We shall see!
The pointy tip of your design is very sensitive to the direction of the oncoming air. Consider rounding it more. Forcing more air under the car might also increase the Bernoulli effect below the car, but better validate CFD.
Round it more when looking from the side right? I have been meaning to check the pitch sensitivity of my more recent designs but haven't got round to it yet. Maybe this week! Thanks for watching 👍
@@steveeng1826 Yes, it should be sensitive to bumps in the road. Rounding the nose more when looking from the side should fix that. You have got a nose like 🏎️ and you probably one want one like 🚗.
@@steveeng1826 add vacuum to the undercarriage. I don't know why full scale Land Speed Record chasers won't do it.
@@secretbassrigs this did cross my mind but I decided not to because I didn't want the extra weight and complexity. Plus if I can get the aerodynamics to work it would give downforce for free! Try it and let me know how it goes 😀
@@steveeng1826 there's an obscure AI maze race called MICROMOUSE that basically uses electric cars as Mice. it seems to improve traction and torque as much as it prevents "blowouts". good luck!
Great video Steve, look forward to the next one
I walk daily behind my crawler at a maximum of five miles per hour but still find your efforts interesting. Thanks for sharing and stay safe.
@@alans4281 thanks for watching, it's gonna be a journey!
Nice to show the iterative design cycle. BTW, what CFD software are you using ?
I know that it's a question of taste but is the background music ireally necessary ?
@@peterfelecan3639 hi and thanks for watching, yes I've been excited to show the iterative cycle, in future videos I plan to show how it went because it's moved on a long way from what I showed here. Thanks for the comment on the music, I think some of what I've used worked but not others, I'll be more picky with where and what I use in future! Using Simscale for CFD by the way which is free for your first 10 runs (with numerical results).
Youll need a solution for your wheels. You cant 3d print something that can spin at 200 mph without flying apart. Even car tires with reinforced vulcanized rubber and steel rims need to be specially designed for 200 mph. Check your Aero stability too. Are those tail fins big enough to keep you straight and will you flip up like a Mercedes at Le Mans when a little wind gets under the car? if you find your motors shattering magnets and bending their shaft JustCuzRobotics makes some hyper durable brushless motors for a premium but they're custom made to be high speed hub motors.
@@Drawliphant thanks for watching, yes I'll be using off the shelf wheels for this car rather than 3d prints that should be capable of 200mph. I haven't got a way of simulating lateral stability so I'm going to have 2 sizes of fins and the option to have up to 3 of them! They are definitely necessary, I ran my old car without them once and it went all over the place then crashed.. I think I have a solution for getting balanced downforce front and rear but will have to see how it performs in real life! Cheers for the tip on the hub motors 👍 Steve
Great vid , see you at round 3
The biggest problem people are having are the tires !!!!!!!! They blow apart at 200 mph
So wheel on motor huh? no suspension? Not worried about the bearings in the motor?
Hey, thanks for watching it! Actually it does have an innovative leaf spring type suspension system of my own design, I'm looking forward to showing that in a future video. The bearings are a concern, they were on my first car too although they proved slightly more durable than the spindly 3mm motor shafts! The loading direction is better on the car than in a drone (radial rather than axial) and they have a 175kg radial load capacity, so I'm hopeful they will be fine! We shall see!