I love your iterative design approach to re-engineering designs from first principles. I think the fan in this design is pulling most of the air from the rear when it lifts off the surface which would slow down the vehicle. Regarding the fixed-wing design, a problem with large diffusers is that they can stall if there is not enough incoming air through the throat. To prevent this, speed up the air at the throat or let more air through by increasing the height.
I wonder if the design could be improved by having a microswitch with normally closed and normally open outputs that disconnects the drive motors and connects the fan motor, maybe it could be activated by the machine lifting off the ground (though I suspect it might bounce a little on the track joining points)
When you were wondering if the fan was turning on appropriately, I thought, "they should put an LED on there and we could know for sure!" Then immediately you installed the LED. I can't describe how happy I was in that moment.
Congratulation for your new record! 🎉 The difference of timing can be caused from the battery pack that you used for the car, lipo batteries are unstable and not every recharge is the same, the battery charger also has to be high quality for having good results. I also suggest you to keep the battery in a safety box cause it could overheat and take fire, be always in the room when you recharge it for checking. I relly like your channel ! See you from italy😊
I enjoy the way your projects evolve through the video, and your willingness to try unusual ideas and really push those ideas as far as you can always makes it fun to watch. I am not an aeronautics engineer so i have no idea what forces may be at play here. Simply basing off the large time and speed difference with the fan covered and uncovered; there is a very strong suction force being created with the fan covered, this doesnt explain why you dont go much faster with the fan off in that same configuration unless the fan is not needed to create this large downforce in that configuration (something i would also find very odd). Possibly the void in the center of the car is causing a very low pressure area that is creating suction? Again i dont know. When the wing is placed in the rear of the vehicle maybe it is effectively seperating the upper and lower air pressures? I have no clue why this would have such a huge effect on performance. My guess is that there must be some kind of interaction with the different air pressures taking place at rhe rear of the vehicle, possibly vortices being created? I wonder what the result would be if you had your "hi" mechanism and the rear seperation diffuser both installed if it would remain as fast as without the "hi" mechanism or would it slow to the same as without the rear diffuser? How do we get you a wind tunnel and a high speed camera. The way your experiments create new questions and ideas while answering previous curiosities is what i find truly great about your channel. Thank you for not being afraid to explore any concept no matter how small and insignifigant some may seem and thank you for including all the ideas and experiments that didnt work because those are some of the most interesting things is seeing what doesnt work. Your ingenuity in the solutions you create is very impressive and i feel that eventually with the right combination of things you have learned from all your experiments you will achieve a world record and even discover and learn things that will end up helping people all over the world.
I always wait your videos, and also glad that you break a new record, congratulations. I guess, your grandma calligraphy is key for this new record. You must keep that calligraphy for a charm. Aside from calligraphy, i think aerodynamic give more impact. At this point, on off switch less effective since it just millisecond. Cmiiw
Amazing channel you have! If I may add my input to help develop the car, there needs to be a good path for airflow from the front to the underside of the car so the fan can work better. Check the lotus 79 or the williams fw07 side tunnels and imagine there's a fan to extract the air from the mouth of the tunnel. There's also the possibility of inertia forces making the car lifting one axle more or not in tune with the rest, you can use a cradle to suspend with springs the heaviest components of the car, because I can't think of another way to have the axles and drivetrain remain the same when using a suspension. An idea would be to use a X chassis shape with the tyres in the corners of it and a try to get the heaviest components in the centre of the chassis.
おまけコーナーで紹介頂いた風洞実験を企画した者です。
アズパカさん、ご紹介頂きありがとうございましたm(__)m
センターの皆さんは風洞実験にとても乗り気で、また新たな展開を考えています。
その際、ご興味ある方がいらっしゃいましたら、ぜひ名乗り出て頂けると嬉しいです（＾＾）
今後もJCJCを楽しませてもらいます🙏
本拠点様キターーーーーーーー！風洞実験、マニアには聖地でしかない。次はセブンポストリグですね！
ここまでルール無用JCJCのレベルが上がってくるとは😅
Domo arrigato, Mrs. Roboto.
変わらず「ﾊｰｲ」に毎度引用元を表示する丁寧さが大好きです
最後、実験のレベルが唐突に爆上がりして驚いた
マシン作りの技術がすごいだけでなく、動画作りも丁寧かつ面白くて本当に良いチャンネル
夜中なのに叫んじゃった... 凄い検証力...
ありがとうございます！今回はかなり迷走したので大変でした…！😇
これまで存在が仄めかされるに留められていた出力装置「ばあちゃん」を満を持しての導入…！
おかげで心なしか空力効果も力強くなっているような気がします
どこのばあさんか知らんが、このルール無用界隈で一気に有名になったな。漢字のばあちゃんということでねw。
ばぁちゃん習字うまくて草w
でも「ウハエ カ」って何だ？（）
これが世に聞くホイ卒か…
戦後やろ
「空力」迫力あって好き
I love your iterative design approach to re-engineering designs from first principles. I think the fan in this design is pulling most of the air from the rear when it lifts off the surface which would slow down the vehicle. Regarding the fixed-wing design, a problem with large diffusers is that they can stall if there is not enough incoming air through the throat. To prevent this, speed up the air at the throat or let more air through by increasing the height.
いつもこの素晴らしい思考と技術と完成度に感動させられます
もはや芸術です
開発の末にどっかのレッドブルマシンを彷彿とさせる構造になるのは個人的に胸熱
そしておばあちゃんが達筆。素晴らしいお孫さんを持っておばあちゃんも幸せですね
最新のものばかりではなく時には昔を振り返ってみるのも趣が...じゃなくて思わぬ発見があって良いですね
可変ウィング有りの際に速度が伸びなかったのは羽根の抵抗が大きくてマシンが加速できなかった、もしくは抵抗でファンモーターの消費電流が増えて動力が食われた可能性を挙げときます
某シミュレーションゲームの話ですがトラックのように空気抵抗が大きい車と、一般的なスポーツカーでは同じ馬力でも最高速が大きく変わる(スポーツカーは400キロ付近まで伸びるのにトラックは250キロ辺りで打ち止め)のでミニ四駆にダウンフォースが有効であるように、空気抵抗も割と大事な要素かもしれません
レッドブルめっちゃ思いました！
あとはリアウィングでdrsをすればもうF1ですね
ばあちゃんの「空力」が力強かったから空気も空気読んだんだと思う
外注先の達筆な文字力も素晴らしい。
お婆ちゃんも空力って書いてあげた障子紙が和室を爆走するモノに使われるとは思って無いだろうなぁ…
音うるせえ！と思ってるかもしれんが、この動画、皆さんの思考回路にかなり、役立ってるからね。ばあちゃん、知る由もないだろうけど。
おばあちゃん地味に「空力」がうまくて笑ゥ😆
ルール無用JCJC界、だんだんとガチのスポンサーや施設提供協力者も増えてきて，いろいろな分野の人たちが本腰入れてきそうだなぁ…小型風洞で自作機体の流体の試験なんて、かなりのロマンですぜ
しかしここまでくると、計測方法の精度も何とかしたいところですよなぁ…これ以上突き詰めていくとなると計測機器のFPSが問題になりそうな予感
I love this channel, I don’t speak Japanese but I thank UA-cam for subs, the precision of this engineering is just unmatched.
Japan is the goat
I wonder if the design could be improved by having a microswitch with normally closed and normally open outputs that disconnects the drive motors and connects the fan motor, maybe it could be activated by the machine lifting off the ground (though I suspect it might bounce a little on the track joining points)
みんなもっといいねしてコメ欄上に表示させろ。
相変わらずﾊｰｲの度に元ネタ出てくるの面白いw
最高の一言に尽きる。
自己ベスト更新おめでとうございます。
ためおじリスペクトとおばあちゃん登場のコンボでワロタ
先駆者のすまんかった がめっちゃブラッシュアップされてて笑うw
ちゃんと空力ダウンフォースが活躍してるの見るのは感動するね
アズパカ博士、いつもありがとうございます。
今後は軽量化と強度、前後に流れる風の整流のためのボディー形状とか重要になってきますね。
風洞実験は激アツです！
「強力なダウンフォースが発生していることが確認できた」というレツゴ視聴者の心をブッ刺しに来るワード
When you were wondering if the fan was turning on appropriately, I thought, "they should put an LED on there and we could know for sure!" Then immediately you installed the LED. I can't describe how happy I was in that moment.
エジソンが竹のフィラメントにたどり着いたが如く、障子紙にたどり着いたアズパカさん
ふすま破っても手伝ってくれるおばあちゃんは神
JCJC完全に理解した
JCJCなにもわからない←NEW
JCJCﾁｮｯﾄﾃﾞｷﾙ←未来
足を轢かれるたびに鳴き声を上げてしまうカイリューくん
最後のは凄すぎて最早妄想じゃないんだよなぁ〜笑
誰かアズパカ博士と土屋博士が手を組んで新世代のミニ四駆を作る漫画はよ！
ばあちゃん参戦
🤣🤣🤣
おばあちゃんいつまでもお元気でいてくださいね。
空力の開拓、余地がありすぎてワクワクが止まらん
そしておまけが豪華すぎる､､､!
自己ベストおめでとうございます。
おばあちゃんの御加護もありがたいですね。
おばあちゃんと一緒に出した1.78秒、熱いですね！
It's crazy fast!!! Omedeto! Good job! I like your videos with your development 😍👍🏻
ばあちゃんとか風洞実験とかガチすぎる
Congratulations! That was amazing to watch. Keep working on improving this design - who knows how fast it will go.
最後機械音とBGMが近未来を奏でてる
タイムよりおばあちゃん書の『空力』が外れてしまうのか否かでずっとハラハラしていた。
俺はコースアウトして破れないか不安だった。
自己ベスト更新おめでとうございます！！
おばあちゃん大切にしてて偉い
Love that Kairyu/Dragonite noise LOL
ばあちゃんと孫の共作は胸熱www良い思い出ですねお祖母様♪
ウィングのダウンフォースが発揮される力点がウィングの根元となるので、駆動輪近くにある方がグリップ力が上がったのかな？
That was awesome, congratulations! So incredibly fast and such a big step forward. And thank you for continuing to include English subs.
fast car can achieved with drone dynamo and li- po battery, but stability is important too
こんなにミニ四駆に夢中になれる人は、そうそういない
やっぱミニ四駆ってロマンある。アズパカさんの自己新出た時思わず自分も声出して喜んでました。
この小さい紙に「空力」って書いて！
っておそらく何も知らんばあちゃんにお願いする絵面想像して吹いた
こう言う進展によって更なる謎が深まる感のマシン開発マジすこ
❤
1,閉合式密封齒輪傳動具有良好的減低齒輪傳動負功率消耗， up預計0.3%效率
2,在三維列印後採用導油膏循環迴路，up預計0.4%效率
3,用單葉式風扇可以增加創意與突發性空氣升力，
up預計0.3~0.7%效率，細節在於斜率與實際表面積比例
❤
特に意味の無かった筆文字が障子紙で謎に伏線回収されてるのがツボw
簡単にアップデート出来る車体の性能の高さに毎度ながら感心している。
定期的の「ハーイ」が聴きたくなるので助かります。
Congratulation for your new record! 🎉 The difference of timing can be caused from the battery pack that you used for the car, lipo batteries are unstable and not every recharge is the same, the battery charger also has to be high quality for having good results. I also suggest you to keep the battery in a safety box cause it could overheat and take fire, be always in the room when you recharge it for checking. I relly like your channel ! See you from italy😊
ためおじが失敗した固定ウィングもここまでの速度域になると立派に生きてくるのか
奥が深い
Excellent run!! 😮 ❤
ハアーイが、また復活して嬉しい。
LCでの挙動を見ている限り、ウィングによる外力（ダウンフォース）がフロント側にしかかかっていないように見えました
間違いなく車体を押し付ける力は発生しているのですが、その力がフロントにしかかかっていないせいでピッチングが発生してリアが跳ね飛ばされる…といった流れかもしれません
改善案としては、「可変ウィングの回転軸を車体中央に寄せる」「可変ウイングに連動して動くダンパー等を車体中央～後輪車軸間に付ける」「ウイングを小型のもの二枚に換装して、フロント側とリア側でそれぞれにダウンフォースを受けるようにする」などが考えられますね（実現可能かどうかはさておき）
百式のようなカッコ良さを感じる♪
I enjoy the way your projects evolve through the video, and your willingness to try unusual ideas and really push those ideas as far as you can always makes it fun to watch.
I am not an aeronautics engineer so i have no idea what forces may be at play here. Simply basing off the large time and speed difference with the fan covered and uncovered; there is a very strong suction force being created with the fan covered, this doesnt explain why you dont go much faster with the fan off in that same configuration unless the fan is not needed to create this large downforce in that configuration (something i would also find very odd). Possibly the void in the center of the car is causing a very low pressure area that is creating suction? Again i dont know. When the wing is placed in the rear of the vehicle maybe it is effectively seperating the upper and lower air pressures? I have no clue why this would have such a huge effect on performance. My guess is that there must be some kind of interaction with the different air pressures taking place at rhe rear of the vehicle, possibly vortices being created? I wonder what the result would be if you had your "hi" mechanism and the rear seperation diffuser both installed if it would remain as fast as without the "hi" mechanism or would it slow to the same as without the rear diffuser? How do we get you a wind tunnel and a high speed camera.
The way your experiments create new questions and ideas while answering previous curiosities is what i find truly great about your channel. Thank you for not being afraid to explore any concept no matter how small and insignifigant some may seem and thank you for including all the ideas and experiments that didnt work because those are some of the most interesting things is seeing what doesnt work. Your ingenuity in the solutions you create is very impressive and i feel that eventually with the right combination of things you have learned from all your experiments you will achieve a world record and even discover and learn things that will end up helping people all over the world.
整備性の良さと配線の綺麗さがほんと凄い良い
自分もルール無用JCJCまたやろうと思っているので
すごい勉強になります！
I always wait your videos, and also glad that you break a new record, congratulations.
I guess, your grandma calligraphy is key for this new record. You must keep that calligraphy for a charm.
Aside from calligraphy, i think aerodynamic give more impact. At this point, on off switch less effective since it just millisecond. Cmiiw
おめでとうございます！ これからも頑張ってくださいませ！！
新記録おめでとうございます㊗️
記録更新おめでとうございます🎉
いつも入ったときに流れるﾃﾞﾚﾚﾚﾃﾞｯﾃﾃﾞｯﾃｯﾃｰのBGMがまじで興奮する
ﾊｰｲ毎回笑っちゃうんだよなぁ おばあ様の協力あってこそのタイムですねｗ
フェンスカーが一つの到達点と思ってたんですが
アズパカさんが考えるミニ四駆を見てると
新しい答えが見つかりそうでワクワクします
空って言う字はウ冠じゃなくて穴冠だとわかる素晴らしい習字😊
ダウンフォースじゃなくてファンオフで強力な「リフトフォース」が発生していてファンがオンで強力なダウンフォースが発生していたって事は走行時「ダウンフォースを消して重さを極限に重さをなくしてる」って意味か・・・
つまりだ・・・・「ダウンフォースは使った瞬間が最高の状態を見せる」って意味になるな！すげー発見だ・・・・・・・す凄すぎる！
孫に付き合ってくれるおばあちゃん優しいし習字クッソ上手いw
サブローラーシステム天才だろ…
この動画のおかげで空の字にハエが潜んでいる事に人生で初めて気付きました
やはりおばあさまの空力の力何じゃないですかね
こんなことのために墨まで擦って書いてくれるおんばっ様素敵
もちろんがもろちんに聞こえて何度か戻ってしまった😂
帆立船！更新おめでとうございます。
偶蹄目先生の「テケテン！」はけんこうによいきがします。
新記録おめでとうございます！すげぇ〜
I loved your narration through your development.
外注先が素敵で無敵。最強！！！
Amazing project.. just when i thought it cannot go any faster.. you proved me wrong. 👍
ばぁちゃんの字が上手すぎる！！
そして、速すぎて「きっしょ」って声出た笑笑
文字のバランス素晴らしい。
The algorithm brought me here and it was right. Thanks for the English subs and extra points for the Dunning Kruger comment!
一足早いお正月（凧揚げ）みたいでおめでたいと思う（小並感）
速さの秘訣はお婆ちゃんの孫への愛・・・ですかね
最終”ファンカー”がちょっぱやい🤣
突如「空力」を外注されても何も言わず書いてくれるばあちゃん優しい
Very impressive! I watched with subtitles and enjoyed your video. You are very talented
ユウタさんのノーズダイバーもそうだったけど、車体前部をファン、後部を別の方法で押さえつけるっていうのはわりと理想解なのか
Your grandmother's calligraphy is beautiful. I hope you had a nice visit with her if you don't live close by.
Thank you for including subtitles in your video so i can enjoy this topic. It's very interesting and different from what I have here
Wow 1.78 amazing 😲
ミニ四駆は一ミリもわからんけど、最後のテールウィングが効いたのは後の駆動輪の接地地点とウィングの力がかかる場所が近かったからかも？
最初のだと後輪駆動だけどウィングのダウンフォースは前輪の方にかかっていそう（全て妄想）
ばぁ〜ちゃんの空力つよつよ😂www
強制ファンとBIGリアウィングの力はエグい
far better than my ide
maybe for next project, use cover to make exhaust from fan direct to back
おまけが動画一本できそうなくらい凄いw
自己ベスト更新おめでとう御座います。 そしてお疲れ様です。
それにしてもドローン用モーター&バッテリー恐るべし…ですよ！
これぐらい軽くマシンを製作出来れば、ファンによるダウンフォースも有効な方法ですね。
次回作に益々期待が膨らんできますね。 頑張って下さい。 それではまた。
Amazing channel you have! If I may add my input to help develop the car, there needs to be a good path for airflow from the front to the underside of the car so the fan can work better. Check the lotus 79 or the williams fw07 side tunnels and imagine there's a fan to extract the air from the mouth of the tunnel. There's also the possibility of inertia forces making the car lifting one axle more or not in tune with the rest, you can use a cradle to suspend with springs the heaviest components of the car, because I can't think of another way to have the axles and drivetrain remain the same when using a suspension. An idea would be to use a X chassis shape with the tyres in the corners of it and a try to get the heaviest components in the centre of the chassis.
今回も普通に面白かったです