cagey Posted August 17, 2012 Share Posted August 17, 2012 After a fair bit of surfing and head scratching, I'm still no wiser as to why the windings of BL motors are made up from what looks like miles of fine copper wire and not from much less windings of thicker stuff. I know this is kick in the ass time for me, but any ideas peeps ? Quote Link to comment Share on other sites More sharing options...
PatMc Posted August 17, 2012 Share Posted August 17, 2012 It's so that the most amount of wire can be squeezed into the available space. Quote Link to comment Share on other sites More sharing options...
Dave Bran Posted August 17, 2012 Share Posted August 17, 2012 If only it were that simple! AFAIK, and Very VERY Basically, if you relate the size of the wire used to wind on to fill a given sized pole piece, more turns, more torque, less turns, more speed. (A larger wire cross section can pull more current). Hence a 2212-14 might suit a relatively heavy foamie scale plane, a 2212-6 a fast wing. Quote Link to comment Share on other sites More sharing options...
PatMc Posted August 17, 2012 Share Posted August 17, 2012 The torque of an electric motor is proportional to the ampere turns. Several strands of finer wire are connected in parallel for each coil so that they have the same CSA as a single thicker gauge wire & hence can carry the same current. More of this multi strand can be squeezed into the space available in the stator than a single strand of the same CSA therefore more turns can be used alternately a greater CSA with the same number of turns can be used. Quote Link to comment Share on other sites More sharing options...
Swissflyer Posted August 17, 2012 Share Posted August 17, 2012 If you are into surfing do check out Ron Van Sommeren on RC Groups, his posts are highly authoritative. His advice on windings is “stack it to the rafters”. I hope you enjoy it. Mark Quote Link to comment Share on other sites More sharing options...
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