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Old Apr 20, 2009, 07:13 PM
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Discussion

ESC Motor and Batt wire length


Does anyone see a problem with shortening both the motor and Batt wires on a Castle ESC?
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Old Apr 20, 2009, 07:16 PM
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I don't.

foam.
Old Apr 20, 2009, 07:27 PM
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I didn't think there was a problem BUT I have heard that you don't want to shorten the wires on a Brushless motor if they are already soldered. I have no idea if this applies to all brushless motors or not though.
Old Apr 20, 2009, 07:44 PM
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Quote:
Originally Posted by Raydee
I didn't think there was a problem BUT I have heard that you don't want to shorten the wires on a Brushless motor if they are already soldered. I have no idea if this applies to all brushless motors or not though.
Never heard of that. I used to have a couple of brushed ESC's with a disc shaped PCB that you soldered directly to the motor, no wire at all.
I have always used the rule of thumb: the less wire the better, and have never had issues. I wouldn't worry about it myself, but if your concerned it never hurts to wait for brighter minds to chime in.

foam.
Old Apr 20, 2009, 07:55 PM
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Some brushless motors have the lead out wires as part of the windings... for whatever reason, apparently those are the ones you must not shorten.
Old Apr 21, 2009, 11:20 AM
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Quote:
Originally Posted by Dr Kiwi
Some brushless motors have the lead out wires as part of the windings... for whatever reason, apparently those are the ones you must not shorten.
Nearly all cheap motors bring windings out as leads. It's not that you shouldn't shorten them but rather you must remember to remove the enamel before soldering.
Old Apr 21, 2009, 11:43 AM
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No, there is no problem shortening the wires on the ESC.

Though as some people have helpfully explained, if in the future you are ever thinking about shortening the wires on the motor instead you may need to be a little careful .

Steve
Old Apr 21, 2009, 01:15 PM
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Quote:
Originally Posted by rich smith
Nearly all cheap motors bring windings out as leads. It's not that you shouldn't shorten them but rather you must remember to remove the enamel before soldering.
And removing that enamel can be a royal PITA, especially if the manufacturer has used lots of very tiny gauge wire in the windings (wound in parallel). And that is the reason to look before you snip!
Old Apr 21, 2009, 01:17 PM
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From Himaxx: this does not explain why shortening motor wires may cause motor failure... but there must be a reason other than voiding the warranty.


Do not shorten the motor wires. Shortening or cutting the motor wires voids the warranty and may cause motor failure. If the supplied connectors are not to be used, remove them by desoldering. DO NOT CUT THE CONNECTORS OFF!
Old Apr 21, 2009, 01:56 PM
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It sounds like they are warning for exactly the reason I stated, noobs who don't know about magnet wire enamel. Desoldering instead of cutting would eliminate this pitfall.

I never pay attention to mfg warnings anyway. Why last week I brazenly removed a tag from my futon mattress... knowingly, willingly, and under penalty of law. Tore it right off! I am a wild mustang.

Quote:
Originally Posted by Dr Kiwi
From Himaxx: this does not explain why shortening motor wires may cause motor failure... but there must be a reason other than voiding the warranty.


Do not shorten the motor wires. Shortening or cutting the motor wires voids the warranty and may cause motor failure. If the supplied connectors are not to be used, remove them by desoldering. DO NOT CUT THE CONNECTORS OFF!
Last edited by rich smith; Apr 21, 2009 at 02:15 PM. Reason: futon tag confession
Old Apr 21, 2009, 03:28 PM
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Shorter motor wires do not hurt the motor in any way IF shortening is done correctly of course. How to do it correctly has already been explained by the other posters here.

Vriendelijke groeten Ron
Last edited by Ron van Sommeren; Apr 21, 2009 at 04:54 PM.


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