Does anyone know the correct color code for the X, Y, and Z axis. I want to sleeve my motor wires in the correct color expandable sleeving to make it easier to visually confirm correct connections. Thanks for any help you can give me.
As far as I know, there is no standard for color coding. As long as you know what you did you should be ok
I made mine fluoro green - fabulous! 
I was tempted by fluoro pink, but my wife said it was too gaudy…
@Robi_Mukherjee and @Mike_Thornbury Thanks for the input. Reason I asked is that on some 3D CAD Programs there is a little Icon to indicate X, Y and Z. They were colored Green for the X-Axis, Blue for the Y-Axis and Red for the Z-Axis and I was wondering if this was some sort of de Facto standard, since It was on a CAD program. If this is some sort of standard, then I would like to use it.
For what it’s worth:
Catia, Solidworks, and Autodesk Inventor all use:
X=Red, Y=Green, Z=Blue
I was thinking electrically… Like the resistor color code. I wouldn’t expect software guys to collaborate
Yes, no collaboration among software at all… Which is why each app runs in its own OSD on a computer designed specifically for that app alone, after being written in It’s own language, for which the developers wrote their own compilers and network, driver, hardware abstraction layers. Of course they had to work out how to control the hardware from the data sheets.
No collaboration among software developers at all…
Sarcasm noted. I meant in terms competing software. I’m sure autodesk called solid works to make sure their icons were exactly the same.
It’s called convention. They don’t need to ring, just to use their head.
Thanks everyone for the input. +Edward Ford I am glad to see that at least the colors are the same, even if the axis are different. Might be going in the right direction.
@Edmund_Betlinski The only color code that I know of that corresponds to anything is the resistor band color code. It is numbers, not letters though. If you really want to label wires then get a label maker. Although I have some of the old number books myself too. Of course all they have is numbers in them.
http://www.labelcity.com/DYMO-LETRATAG-PLUS-LT-100H-LABEL-MAKER-21455.html?sc=20&category=164
You could also just print something out with a plain printer, cut it out with some scissors, then tape it on. You’re probably going to have to use some additional tape even with labels out of a label maker anyways. They make clear shrink wrap too.
With only 3 or 4 wires to worry about, I find I can remember what goes where
@Edward_Ford A friend of mine told me to Google it (should have done that first) and I find 8 mentions of R,G,B=X,Y,Z. This is what you mentioned Autodesk and others use. This might be convention now, but could become a standard.
@Mike_Thornbury When you consider 4 wires for each motor times 4 motors plus a spindle and you have a bunch more than 4. Now put all those loose in a wire loom and even you young guys will have a problem. I’m 68 and have trouble remembering what I had for breakfast.
@Edmund_Betlinski
Meh, for control wiring I’ll take markers over colors any day. I got my reasons for that too. Too many to explain here in fact. Do an image search for control panel wiring, the vast preponderance of those that you see there will be done in one color wire. Then they use markers. So I guess I’m in good company with my preference too.
But CNC machine wiring is usually not quite as involved as many control panels are. So whether you go for colors, or markers there is a bit of a gray area. heh.
@Edmund_Betlinski I have them gathered into looms - and used RBGK coloured wire that matched my steppers, so all I need to worry about is which stepper the wire bundle came from.
I can’t remember if I had breakfast or not…
The wire color is determined by the manufacture of the motor and they are all different especially for old equiptment as everything was secret even though the Ruskies had the same thing, the only thing that made sense was resistors…WCH