以前D摩打係咪勁D

聽人講以前D摩係勁D嗰喎,係咪真嫁???,,,同埋可以用到宜家D線芯同炭擦嗎,

[ 本帖最後由 wan219 於 2008-10-7 01:22 編輯 ]

不同意。如果以前的摩打好D，為何各大廠商現在還出新摩打？他們大可以照賣舊款摩打，一樣有生意。
還有，將舊款摩打換上現代摩打芯，那就不再是舊摩打啦。舊瓶新酒

已前ge摩打炭擦有分幾種，標淮形，係常見個種，長方形，狐位係窄位直落。橫炭擦，形狀同標淮形一樣，不過因為係橫放關系，狐位係長0個邊直落。至於一有一種比較少見就係係細炭擦，大細同1/18 0個類車ge摩打炭擦差唔多。還有一款大炭擦，正方形，係比一類大銅頭用，銅比一般摩打直徑大(好似係10mm)，至於摩打心大至上可以互用

Not the case.

No, I think contemporary motors are better in terms of magnet technology and precision, which improves efficiency.

Other than what Tigher1 brother mentioned; old coils are hand winded whereas new coils are machine winded.  The quality lot of the old motor is not very stable; each purchase was depending on the luck.  

原帖由 tiger1 於 2008-10-7 13:23 發表

                               
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No, I think contemporary motors are better in terms of magnet technology and precision, which improves efficiency.

喱d我真係唔知喇
但我想問係咪每個摩既磁力都唔一樣??

原帖由 mlee 於 2008-10-7 14:18 發表

                               
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Other than what Tigher1 brother mentioned; old coils are hand winded whereas new coils are machine winded.  The quality lot of the old motor is not very stable; each purchase was depending on the luck ...

唔係好明,有冇中文

原帖由 li5115 於 2008-10-7 01:36 發表

                               
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不同意。如果以前的摩打好D，為何各大廠商現在還出新摩打？他們大可以照賣舊款摩打，一樣有生意。
還有，將舊款摩打換上現代摩打芯，那就不再是舊摩打啦。舊瓶新酒

為何各大廠商現在還出新摩打？真係吖

仲出新摩打啊,咪就係為左做生意囉,,有新野出,d人咪會覺得新野好,咪買你d新野囉,舊嘅亦都照舊有人買,喱啲咪叫做(新意/生意)囉!!大哥

[ 本帖最後由 wan219 於 2008-10-7 14:58 編輯 ]

除什麼Tigher1兄弟之外提及了; 舊款摩打芯是手工製造，而現代摩打芯是機器製造。舊款老馬達的生產質量水平不是非常穩定; 每次購買也只靠運氣。

原帖由 wan219 於 2008-10-7 14:56 發表

                               
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為何各大廠商現在還出新摩打？真係吖

仲出新摩打啊,咪就係為左做生意囉,,有新野出,d人咪會覺得新野好,咪買你d新野囉,舊嘅亦都照舊有人買,喱啲咪叫做(新意/生意)囉!!大哥

手造貴，新摩打是機器造.

原帖由 mlee 於 2008-10-7 15:01 發表

                               
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手造貴，新摩打是機器造.

Not quite to the point in this comment.

Hand wind rotor usually has tighter wirings (if the tachnician is very experience), which means shorter wire length, lower resistance and less likely to come loose under high speed. Machine wind motors are not done with any 'hand feel' in the winding and the wires tends to looser and occasionally we hear the wires come loose under high speed.

But with hand wind, the quality can be a little more variable depending on the performance of the motor technician.

原帖由 wan219 於 2008-10-7 14:45 發表

                               
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喱d我真係唔知喇
但我想問係咪每個摩既磁力都唔一樣??

Of course the magnets are not all the same in all motors. With minor change or variation in the shape of the magnet can change the magnetic field. Also, the later 'wet magnets' which means the magnets were magnetised before it is fully solidified, which make it also stronger.

Try to spin the rotor of an old motor and compare with the new ones, even though they may be the same brand, the new motor rotors are way harder to spin because of the stronger magnets.

Stronger magnets does not mean faster motor, just more torque.

Also, the motor can thickness is also critical. Thicker motor can or motor can made of higher density material also enhance the magnetic field. That is why it was a big deal when Trinity made 1.4mm cans when the new race rules allow it. Some older motors has aluminium cans, aluminium being lower in density does a worse job in terms of enhancing the magnetic field.

Finally, brush springs are important too. Tighter the springs, higher the torque and looser the springs higher the speed with lesser torque.

All in all, with some CAD-CAM technology, the precision of machining is better and therefore motors are better overall.

咁又唔係，已前 D 摩打都有分機撓同手撓，

原帖由 chacha 於 2008-10-7 23:17 發表

                               
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咁又唔係，已前 D 摩打都有分機撓同手撓，

Totally agree, 機撓 usually cheaper but 手撓 usually way more expensive.

Thanks Brother Tiger1 and Brother ChaCha for the information. I always think that there was only hand winded motor core back in the days...

而家果D麼打叫BRUSHLESS喎~
乜你認為會慢D咩!?
如果唔係唔會玩5粒電都有6粒電既速度啦~

原帖由 mlee 於 2008-10-7 15:01 發表

                               
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手造貴，新摩打是機器造.

New or old motors,some are hand made, some are machine made. e.g. 540 has been always machine made.

目前摩打蕊線圈纏繞技術最多為4重捲,但聽說以前日本有出手繞八重捲摩打蕊,比一般摩打更省電,真想開開眼界