On Wednesday, February 18, 2015 09:29:13 AM Dave Cole wrote: > Those connectors are cheap!
As I was paying north of a $8 bill for the mating pair, I did not think cheap, although one could call their construction less than Tiffany. OTOH, they have been dead utterly dependable for me. > But I would be hesitant to use them for > stepper connections on a machine that you need to trust. If you get a > bad connection it can take out your stepper driver. Depends on the driver, I accidentally forgot to turn the driver power off a year or so ago when I was mounting and connecting my A table. That driver did shut down, but a power cycle restored it. The river? Generic 2M542. Bulletproof seems to be a good description. I have 6 in service, bought 7 so I'd have a spare. 4 years later the spare is still in its white box in a toolbox drawer, until I pulled it out to use as a test unit while setting up & testing a new, higher voltage motor psu for my toy mill. There I found, using a function generator, what I believe is the top speed of its opto-isolators as I was able to spin an 8 wire, in series, 425 in/lb triple stack motor at a bit better than 3k rpms, feeding a nearly 375 kilobaud signal from the function generator. I think, come warmer weather, that it will drive my mill a bit faster since the motor psu will go from 28 volts to 47 volts. And I'll have enough spare current then to parallel wire those 8 wire motors too. > Amphenol and others sells round plastic connectors for not that much. > Check out Digikey, Allied, etc I will, because I do need a cheaper, insulated exterior solution for the next machine I build if I stay vertical long enough, but I also need something that ignores its environment. These, being all metal exterior, do that with no fuss. Some plastics and greasy stuff do not get along well. The *styrenes in particular can be turned into shattered sugar just by the vapors of vaselene in a surprisingly short time. > Dave > > On 2/18/2015 9:06 AM, Andreas Pettersson wrote: > > http://www.ebay.com/itm/2pcs-GX-16mm-8-Pin-Aviation-Male-Female-Plug- > > Panel-Power-Chassis-Metal-Connector-/261504110088?pt=LH_DefaultDomain > > _0&hash=item3ce2dc0e08 > > > > > > works quite well .. There is several other variations as well. > > > > [email protected] skrev den 2015-02-18 14:58: > >> 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 > >> > >> -------------------------------------------------------------------- > >> ---------- Download BIRT iHub F-Type - The Free Enterprise-Grade > >> BIRT Server from Actuate! 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