On Wednesday, February 18, 2015 08:58:20 AM [email protected] wrote: > For those who build your own controls, what connectors do you use to > connect the motors to the control panel? I am talking steppers <= 3 > amps. The store bought ones I have looked at use a DIN connector. > > Richard > I've tried several, even molex's but keeping flying swarf out of them is tricky unless backfilled with a silicon caulk, so I have, in my own lashups, been using the 4 pin connector thats been in common use on CB radios for the microphone input. It has a locking ring that screws together, and decent rear of the connector sealing seems more that adequate for the job.
This also brings in cabling considerations, and I am totally sold on the Clark Wire & Cable's version of Beldens Star_Quad, sold for microphone cable as a dual twisted parallel extremely low noise mic cable. Available in gauges as large as 22 IIRC, its more than capable of handling the nominally 3 amps my steppers use. Available in a multitude of jacket colors, easily 10x as flexible as the Belden offering, I have some of it on my toy mill that is sliding back and forth in the mix of cutting oils, swarf & what have you on the top of the 60 yo steel kitchen base cabinet that mill is sitting on. Dirty, greasy, but seemingly un-affected by its environment as its been doing it for nearly a decade now. I first became acquainted with them when they sent me some foot long samples of their video cable. I was at the time fighting with several miles of a West Penn cable whose shielding was 50 db at best, 20 if sloppily terminated with a "Cambridge" screw on BNC connector. With a crimp on connector properly installed, that cable was well north of 110db worth of shielding and all my crosstalk problems just vanished. And its flexible, just laying there like a well cooked strand of spaghetti. 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
