Re: [CAD_CAM_EDM_DRO] Wire gauge for wiring cnc controllers

Hi Dave, and others who responded,


I have bought 4 pole connectors similar to this (mine have screw-on rings) to
connect from the control enclosure to the stepper motors [
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=092-034 ] The wire I
have used to wire the internals of the controller is from a pc power supply, the
external thicker wires, which are multi-strand wires. I am going to purchase a 4
conductor flexible cable to make the leads to the actual motors. Will I be right
in assuming they can be the same gauge as the wires coming out the stepper
motor?

Many thanks for all the tips,

Brian



________________________________
From: Dave Halliday <dh@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com
Sent: Wed, 22 September, 2010 7:59:41
Subject: RE: [CAD_CAM_EDM_DRO] Wire gauge for wiring cnc controllers


Hi Brian

When you say 'harvested' -- are you actually unwinding the transformers and
using that wire?

If you are, you are inviting a world of hurt as solid-core copper wire will
always break and cause no end of troubles. You need to use stranded for
anything that moves, even just going from a computer/controller box to your
machine.

You can go to a hardware store and buy enough stranded wire for a lot less
than the cost of an endmill and vice...

For connectors, I really like the Neutrik Speak-On connectors -- I get them
from Parts Express. Easy people to deal with and decent pricing.

4 pole chassis mount - $2.79
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=092-053

4 pole plug cable mount - $3.79
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=092-190

8 pole chassis mount - $6.59
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=092-069

8 pole plug cable mount - $8.25
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=092-051

I used to do sound a long time ago and I have run hand-trucks and dollies
over them without damaging them. The connection (twistlock) is secure. Good
stuff!

Neutrik also makes some really nice ruggedized Ethernet and BNC panel mount
connectors

Dave

> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Brian
> Sent: Saturday, September 18, 2010 12:18 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Wire gauge for wiring cnc controllers
>
> Hi all,
>
> I am ready to wire my 2.5A stepper controllers, 24v 8A power
> supply and 270 oz/in motors for my router. I want to mount
> this all in an enclosure, the motors will be connected via a
> "microphone" type coupling. My question is, what wire gauge
> do I use? Is the wire harvested from an old computer atx
> power supply ok? Or do I need something thicker?
>
> Many thanks,
>
> Brian
>
>

_




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