Yes, they are not actually made for use on aircraft but they are of that style. Even the way-cheap versions are very reliable and easy to use.
If driving a motor you really must do the math and compute the voltage drop and keep it to maybe less than 2%. Twisted pairs really do help. I think it only takes 8 wire diameters for the field to be nearly undetectable. Shielding motor cables does not help much because motor cables radiate magnetic fields as they are hight current and only audio frequency at most. But twisting does address this. The field cancels quickly. On Thu, Apr 30, 2020 at 4:42 PM Gene Heskett <ghesk...@shentel.net> wrote: > On Thursday 30 April 2020 15:36:05 Chris Albertson wrote: > > > Voltage drop? @26AWG has 0.134 ohms per meter. It might matter if > > you are running 20 meters of cable. As for connectors those > > "aviation plugs" are good quality and not expensive. They come in > > 12mm and 16mm diameters (or more accurately with M12 and M16 threads) > > I've been using M16 for power and M12 size for signals so as to not > > cross them up. They have threaded locking rings that can be > > opened/closed with no tools > > > I would not call them aviation quality when they don't have safety wire > facilities to keep them from comeing unscrewed, and their thread fit > tolerance is relatively poor. However its a much better connector for > where it might get bumped and for handling a decent amount of current > per pin. I've used them for years both for encoders and for motor > connections. My fav cable for motors where 4 wire is sufficient is > star-quad, the worlds best shielded microphone cable, shielding is > around 120 db! 4 wires in a twist pattern that for mikes, balances out > any noise, plus a mylar shield with a 68% tinned copper braid overlay to > ground the mylar. Made by Susan Clarks japanese supplier, Clark Wire & > Cable in Chicago sells it on this side of the pond, its ultra flexible, > laying anywhere like well cooked spaghetti but while its made in 22 and > 26 ga, the 26 does heat a degree or so if driving a 4amp or more motor. > Get the 22ga if she has it. She doesn't always have it as she sells 10x > as much of the 26 ga stuff. We bought it in 1k ft spools, 26 ga for mike > cable at the tv station. Longest lasting, quietest cable thats ever been > made and sold. And available in quite a few colors so you can trace it > easier in a tray with 200 + other cables in it. Good stuff IOW. She > also carries a 75 ohm video coax thats just as well shielded and just as > flexible. I had to replace several miles of West Penn's junk at the tv > station over the 18 years I spent there, because of intercable signal > leakage. > > > On Thu, Apr 30, 2020 at 11:58 AM N <nicklas.karlsso...@gmail.com> > wrote: > > > On Fri, 10 Apr 2020 01:05:03 +0100 > > > > > > andy pugh <bodge...@gmail.com> wrote: > > > > On Fri, 10 Apr 2020 at 00:58, Todd Zuercher > > > > <to...@pgrahamdunn.com> > > > > > > wrote: > > > > > I've liked the cables I've gotten from Igus. > > > > > https://www.igus.com/product/1074 > > > > > > > > This looks good for a dedicated encoder cable: > > > > https://www.igus.com/product/1117 > > > > > > Without doubt, it must be an excellent cable. Ordinary Ethercat is > > > good but maybe voltage drop will be a problem for power supply. > > > > > > > (and is available by the meter.) > > > > > > > > I think that Igus will also put the connectors on? > > > > > > Looked at this connector before, it is a good connector but > > > expensive. Are not sure about any standard encoder cables but D-sub > > > is readily available, really good and guess they are cheap. > > > > > > > > > _______________________________________________ > > > Emc-users mailing list > > > Emc-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
