Note that data cables will need to be screened. I'm using twisted pair, (OK CAT5, because it was lying around) this is working for my home switches, but when I joined up the Z & Y limit switches (I don't have enough inputs for one each) I could no longer turn the machine on. HAL scope revealed a pulse occurring on the limit signal as the motors powered up, which made LinuxCNC think a limit was active.
Mike On 20 May 2012, at 20:12, Dave <e...@dc9.tzo.com> wrote: > On 5/20/2012 12:40 PM, Rafael Skodlar wrote: >> I wonder what kind of power and data cables would you recommend for use >> in X-Y-Z CNC about 1.2mx1m size? Besides power, it's not clear to me how >> many data lines for sensors, encoders, motor control, etc. are needed in >> general. >> >> Is it preferable to carry power and handful of control signals to the >> circuit on the gantry and preprocess some functions there or have >> everything wired into the central box? That would dictate the number of >> wires in the cable needed and what kind you need to buy. >> >> Would cable carrier from McMaster-Carr # 55835K432 be sufficient? >> >> Thanks, >> >> > > Figure out what cables you need to move back and forth and then choose > the carrier. Jamming cables into a cable carrier is not a good idea. > If you don't do some figuring before you know what you are going to carry, > you will either have too much, or not enough space. Guessing usually > doesn't work out nearly as well. > > As an alternative supplier; Igus sells direct in the US. > http://www.igus.com/default.asp?c=us&L=en > > Dave > > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
