RC EVOLUTION - 遙控工房 - 香港RC遙控車討論區

標題: 銅頭 machine vs Brushless System [打印本頁]

作者: GigaRacer 時間: 2007-2-23 03:46
標題: 銅頭 machine vs Brushless System
Brushless system cost more, but no worry no maintainance.

銅頭 machine.... is it too late to buy?

Which one will you buy?  銅頭 machine or Burshless System?

Tell us your reason if you can.  Thanks!

[ 本帖最後由 GigaRacer 於 2007-2-22 11:48 編輯 ]

作者: AlexFiona 時間: 2007-2-23 04:27
暫時無刷嘅技術仍未發展成熟, 好似咩3.5R呀、4.5R呀, 就等於7T同9T摩打噤上下, 吾係人人玩得來, 而且玩無刷的話, 如果齒比吾正確, 個摩打一樣會燒, 所以呢, 睇你自己想點玩啦, 如果吾係要鬥車, 我諗都係玩有刷好D

(以上只是本人小小見解

)

作者: GigaRacer 時間: 2007-2-23 04:31
標題: 回復 #2 AlexFiona 的帖子
Actually Novak is coming out with SS10.5R Pro = 19T, and SS13.5R Pro = 27T. Both are ROAR legal. Can race spec class and stock class.

I won't go for 4.5R or 3.5R....

作者: Chrispo 時間: 2007-2-23 08:58
個人的經驗: 就算是普通摩打, 如果齒比不正確 (either undergear or overgear), 亦可以出現Overheat的現象, 每兩三排电就要用上一對碳擦, 而且銅頭亦須常常打磨, 其中所花的時间及精神是相當大的。當然如不覺得麻煩, 並且樂於此道, 那就不用說了。

作者: GigaRacer 時間: 2007-2-23 09:11
標題: 回復 #4 Chrispo 的帖子
so you vote for brushless? you haven't voted yet.

作者: loman 時間: 2007-2-23 09:32
今年TITC個個都用無刷, 仲駛諗

作者: binary 時間: 2007-2-23 09:43

原帖由 Chrispo 於 2007-2-23 08:58 發表
個人的經驗: 就算是普通摩打, 如果齒比不正確 (either undergear or overgear), 亦可以出現Overheat的現象, 每兩三排电就要用上一對碳擦, 而且銅頭亦須常常打磨, 其中所花的時间及精神是相當大的。當 ...

Totally agree!! really get sick of those brushed system..... 最慘就係... 就算你唔介意摩打 performance 因為舊銅頭及炭刷以下跌，佢都會因為缺乏照料連旭都唔旭！死未？

What I'm talking is just after playing around 10 - 15 packs of batteries... then you've to service your motor again..... don't forget you've to use $$$ to buy those brushes..... which means servicing cost has to be taken into account as well.

作者: jpmontoya2 時間: 2007-2-23 09:53

原帖由 binary 於 2007-2-23 09:43 發表

Totally agree!! really get sick of those brushed system..... 最慘就係... 就算你唔介意摩打 performance 因為舊銅頭及炭刷以下跌，佢都會因為缺乏照料連旭都唔旭！死未？ What I'm talking is just ...

exactly...so i just switch to brushless too ...and Lipo for the best output...

作者: omecon2000 時間: 2007-2-23 09:57
咁無刷會5會比較無咁易jam機
我見D 7T 8T好似打火機咁...

作者: rk2 時間: 2007-2-23 10:17
I think for long term playing brushless should be better in term of cost.

作者: shungyan 時間: 2007-2-23 10:20
Brushless has no spark at all.

I voke Brushless also. I haven't heard that a brushless will burnt with wrong gear ratio. But of course protection will open!

作者: Chrispo 時間: 2007-2-23 14:13

原帖由 GigaRacer 於 2007-2-23 09:11 發表
so you vote for brushless? you haven't voted yet.

I've voted for brushless already. Sorry that I haven't done it at the very beginning. I think when using both the brushed and brushless motors, you have to be careful with gear ratio. Under- or overgearing will not be good to both types of motors. Yet you have to account for the maintenace cost and effort you paid for the brushed motors. As a result, I'll go for bruhless one.

作者: 倒錢落海 時間: 2007-2-23 21:44
新手一問：齒比太大，摩打負荷太大，會過熱，呢個我明，但點解齒比太細都會過熱？

作者: binary 時間: 2007-2-23 22:05

原帖由 倒錢落海 於 2007-2-23 21:44 發表
新手一問：齒比太大，摩打負荷太大，會過熱，呢個我明，但點解齒比太細都會過熱？

You always have to use full throttle if you're under-gearing... which means the motor always has to be in high-revs range which generates heat once again.

作者: 老人家 時間: 2007-2-23 23:43

原帖由 binary 於 2007-2-23 22:05 發表

You always have to use full throttle if you're under-gearing... which means the motor always has to be in high-revs range which generates heat once again.

答得專業

作者: Chrispo 時間: 2007-2-23 23:56

原帖由 binary 於 2007-2-23 22:05 發表

You always have to use full throttle if you're under-gearing... which means the motor always has to be in high-revs range which generates heat once again.

Super!

作者: rcdummy 時間: 2007-2-24 01:20
我成班Friend都轉玩無刷啦.... 一個字...長玩"平"....

作者: aloha 時間: 2007-2-24 10:11
如果d brushless 有d較慢既 version, 好似 23 / 27t 左右, 我都會用.
不過我果架 m 車而已.

作者: 蒙古殺手 時間: 2007-3-8 02:48
http://www.teamnovak.com/products/brushless/motor_spec_chart.htm

唔同轉數無刷, 任君選擇

作者: GigaRacer 時間: 2007-3-8 05:39
For those who selected "銅頭 machine", you may want to re-consider...

I bought a second-hand Novak 5800 brushless with the SS ESC. Man.... that thing is fast, and I know I don't need to maintain it, so just basically battery and go

Too fast? I can set the ESC to limit the motor to 24000rpm. That equal to a good 23T?? I think.

At our local hobby shop race, we use 13.5R for stock/27T, and 4300 for spec/19T race. Brushless is the way to go!

作者: orange00 時間: 2007-3-8 07:50
I'm a lazy guy, that's why I choose BL. For gear ratio, actually instruction from manufacturer already provide a suitable gear ratio range, it also make the setup much easier.

作者: rk2 時間: 2007-3-8 09:52

原帖由 GigaRacer 於 2007-3-8 05:39 發表
For those who selected "銅頭 machine", you may want to re-consider...

I bought a second-hand Novak 5800 brushless with the SS ESC. Man.... that thing is fast, and I know I don't need ...

HOW MUCH YOU PAY FOR THE NOVAK 5800 BL WITH SS ESC ?

作者: jpmontoya2 時間: 2007-3-8 10:25
Brushless is the way~~

i just got my Mamba Max ESC too.....will test it this weekend....

i can see the tire is ballooning~~~..heheeh

作者: binary 時間: 2007-3-8 11:04

原帖由 jpmontoya2 於 2007-3-8 10:25 發表
Brushless is the way~~

i just got my Mamba Max ESC too.....will test it this weekend....

i can see the tire is ballooning~~~..heheeh

Congrats and enjoy it. Please tell us your test report of Mamba Max ESC.

作者: jpmontoya2 時間: 2007-3-8 11:36

原帖由 binary 於 2007-3-8 11:04 發表

Congrats and enjoy it. Please tell us your test report of Mamba Max ESC.

Yes...will do it this SAT......

Here are some pics~

: 登錄/註冊後可看大圖

: 登錄/註冊後可看大圖

作者: lespaul 時間: 2007-3-8 12:00
4.5 BL for 6 cells is too fast, few fans use 3.5R in four cells to reduce the speed, the performance is fruitful.....good for novice or 23T brush motor lovers..

作者: orange00 時間: 2007-3-8 16:31

原帖由 lespaul 於 2007-3-8 12:00 發表
4.5 BL for 6 cells is too fast, few fans use 3.5R in four cells to reduce the speed, the performance is fruitful.....good for novice or 23T brush motor lovers..

Why they don't use 6.5 or even 7.5 lei?

Or your friend use a 4 cell version GTB?

作者: 倒錢落海 時間: 2007-3-8 16:48

原帖由 binary 於 2007-2-23 22:05 發表 You always have to use full throttle if you're under-gearing... which means the motor always has to be in high-revs range which generates heat once again. <img src="images/smilies/shy.gif" smilieid="8" border="0" alt="" />

多謝解答^^。咁我墊高車底、四輪離地、空轉黎試車咪好傷麼打？

作者: cowcowlee 時間: 2007-3-8 16:59

原帖由 倒錢落海 於 2007-3-8 16:48 發表
多謝解答^^。咁我墊高車底、四輪離地、空轉黎試車咪好傷麼打？

問得好...

玩車都要食腦, 千祈唔好人地講乜你就信乜...

作者: rsx 時間: 2007-3-8 17:00
If you use full throttle a lot, it's likely to be.

原帖由 倒錢落海 於 2007-3-8 16:48 發表
多謝解答^^。咁我墊高車底、四輪離地、空轉黎試車咪好傷麼打？

作者: Chrispo 時間: 2007-3-8 20:17

原帖由 倒錢落海 於 2007-3-8 16:48 發表
多謝解答^^。咁我墊高車底、四輪離地、空轉黎試車咪好傷麼打？

This is different from what Binary is saying. Your motor is not loaded under the condition that you've mentioned. The motor is worked with the resistance of the driving system only. When you run the car on the ground with full throttle, the motor is loaded with the resistance of the driving system plus the whole weight of the car itself. They are totally different!

作者: 倒錢落海 時間: 2007-3-9 02:55
我係新手，對呢方面認識不深，多謝各位指教。其實係咪即係咁：負荷太大，當然會傷麼打，但負荷太細（例如我用一隻好細既麼打齒去推一隻大齒），都會傷麼打？

作者: binary 時間: 2007-3-9 09:17

原帖由 Chrispo 於 2007-3-8 20:17 發表

This is different from what Binary is saying. Your motor is not loaded under the condition that you've mentioned. The motor is worked with the resistance of the driving system only. When you ru ...

Yeah.... absolutely!!

作者: chrishkyung 時間: 2007-3-9 09:31
標題: 回復 #28 倒錢落海的帖子
From my experience, "You always have to use full throttle if you're under-gearing... which means the motor always has to be in high-revs range which generates heat once again." is correct. The correct gear ratio is very important. if overgear ratio, the motor need higher revs to keep the same speed. With loading condition, u will observe part of the communator become from gold color to red color....If undergear ratio, even u full throtlle, the car cannot run fast...in this siutation, high current but low revs...the motor will be very hot and low efficiency...harm to motor too...

cowcowlee
"問得好... 玩車都要食腦, 千祈唔好人地講乜你就信乜..."

"咁我墊高車底、四輪離地、空轉黎試車咪好傷麼打？" It depends how long u do the test...but why u need to test your car with full throttle withoput loading condition....Its meaningless...anyway, if u just test it few seconds, its no harm....

作者: loman 時間: 2007-3-9 09:34

原帖由 倒錢落海 於 2007-3-8 16:48 發表
多謝解答^^。咁我墊高車底、四輪離地、空轉黎試車咪好傷麼打？

stupid boy, under gear 行車架車係有loading, 唔同四輪離地空轉, 係有機會過熱的.

作者: cowcowlee 時間: 2007-3-9 10:33

原帖由 loman 於 2007-3-9 09:34 發表

stupid boy, under gear 行車架車係有loading, 唔同四輪離地空轉, 係有機會過熱的.

玩埋出口術加人身攻擊, 你好醒啊...

歡迎光臨 RC EVOLUTION - 遙控工房 - 香港RC遙控車討論區 (https://jk.rc-evo.com/xbbs/)