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Old Feb 23, 2012, 09:41 AM
Team Wack-a-Mole
Melnic's Avatar
Maryland
Joined Oct 2008
8,439 Posts
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Longer wires to Power or to Motor?

I need to make a long run to motor for a Quad copter.
I want to get my ESC off the arms.
I can lengthen the 2 power wires
or
Lengthen the 3 brushless motor wires
Which is best and why?

Motors pull about 10A in a hover and about 20A max

My preference is to put the ESCs at the ends to get the weight out near the tips for stability and airflow and to De-clutter the central area. Then solder on longer power wires to run the power through the arm tube to hide wires.

thx
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Old Feb 23, 2012, 09:46 AM
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Joensuu, Finland
Joined Mar 2002
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http://www.rcgroups.com/forums/showthread.php?t=952523
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Old Feb 23, 2012, 12:47 PM
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Vipula AD's Avatar
Greensboro/H.Pt/Win-Salem P.T. Intl, North Carolina, United States
Joined Dec 2001
809 Posts
Quote:
Originally Posted by Melnic View Post
I need to make a long run to motor for a Quad copter.
I want to get my ESC off the arms.
I can lengthen the 2 power wires
or
Lengthen the 3 brushless motor wires
Which is best and why?

Motors pull about 10A in a hover and about 20A max

My preference is to put the ESCs at the ends to get the weight out near the tips for stability and airflow and to De-clutter the central area. Then solder on longer power wires to run the power through the arm tube to hide wires.

thx
Rule of thumb;
Length of wire from battery pack to ESC < 12
Therefore, for any longer length of connections, increase wire from ESC to motor.

Vip.
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Old Feb 26, 2012, 07:56 AM
Ex AmA mEMBEr
mchldpy's Avatar
United States, CA, San Bernardino
Joined Feb 2010
782 Posts
you could go the "xtra caps" routine inline to stop the "ripple effect" (the surging caused by the esc switching off and the voltage spiking... longer wire = higher spikes so longer wire needs more caps of same or higher value)

michael clyde
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Last edited by mchldpy; Feb 27, 2012 at 09:08 AM. Reason: pulled head out
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