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'It's the pink one'

cable length colour marker used on box or drum
  (+7)
(+7)
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A mechanism that any cable can be drawn through, from drum or box, that can be loaded with a coloured permanent marker. The mechanism would allow a coloured line to be placed along the length of the cable.

Once these cables are installed, making a hole in a wall and finding a cable means almost instant identification.

"No sorry, not Pink.The next one over, Vermilion green"

wjt, Apr 03 2015

Fox-Hound cable sniffer http://www.neatcirc...foxhound/index.html
Similar to what [MB} suggests [csea, Apr 03 2015]

[link]






       I wonder if this can't be done electronically instead. If you place a coil next to a cable, and put a signal through that coil, it should induce that signal into the cable. A receiver, held near the cable further along, should be able to pick up that signal, thereby identifying the cable.
MaxwellBuchanan, Apr 03 2015
  

       Good idea. Also see [link]. Commercially available versions from a number of sources.
csea, Apr 03 2015
  

       An electronic device means every man and his dog has to have one. The marks give information built in to designed layout for anyone to see.
wjt, Apr 03 2015
  

       If you're doing a large number of installations, you just buy the cable already marked. If you're doing one or two, this might be useful, but the number of different marker colors you're going to have is probably limited.
MechE, Apr 03 2015
  

       This idea has the merit of simplicity, plus it doesn't need power.   

       [+]
8th of 7, Apr 03 2015
  

       To make the most of different colour markers, you may need a companion device to lay a base coat of tipp-ex.   

       To extend your range of markings, a mechanical interrupter could raise and lower the pen as you pull. Interchangeable cams would let you choose from plain dotted, dot/dash/dot, SOS, etc.
mitxela, Apr 04 2015
  

       //Vermilion green// So, aimed at red/green colour-blind people?
pertinax, Apr 04 2015
  

       [pertinax] Nope, purely spat out by my neural processing. I think, [mitxela] has the color blind thing covered. see above
wjt, Apr 04 2015
  

       /number of different color markers/ You could use more than one marker in the mechanically interrupted sequencer. Interrupted marks would be more conservative of marker juice.
bungston, Apr 05 2015
  

       The more the complex the printing the slower feed. Most jobs you would just want to pull the cable from the box, which is quite fast. The simpler the better. I don't want to get in the way of the job or else I am costing more than the label can help.
wjt, Apr 05 2015
  
      
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