Re: [CAD_CAM_EDM_DRO] Re: motor grounding and DB9 connector question

On Wednesday, March 27, 2002, at 09:24 PM, resosys wrote:

>> I believe each pin is good for 2 amps, and as a (standard 2 phase
>> bipolar) stepper needs 4 power lines, I think you might be
> restricted
>> to 4 amps (ie four paired wires, and maybe a ground).
>
> Great info, thanks. The DB9's are not going to cut it.
>
>> Someone here was using a DB25 (perhaps it was Al Schoepp)
>> and he uses four bundles of four wires, leaving 9 wires
>> for other functions (limit switches etc).
>
> Seems like a bit too much to split the wires out to that many pins.
>
>> These days I am just dispensing with the connectors, running
>> the wires into the box through a rubberized plastic weatherproof
>> cable strain-relief socket, available at any electrical dealer.
>> It comes with a selection of rubber inserts to match your wire
>> bundle diameter, and hold them snug.
>
> I'd like to have connectors at the control box so that I can move the
> box to other machines. I will have a converted mill before year's
> end and plan to swap the control box from the router to the mill, as
> necessary.
>
> I'm hoping someone on the list has purchased some hearty connectors
> and had good luck with them. I'm not afraid to pay a little extra
> for a great connector, I just need to find them. Any supplier
> suggestions would be greatly appreciated.
>
> Thank you for the reply. This list has been incredibly helpful.
>
> Chris

A nice connector I have found it the AMP/TYCO Circular Plastic
Connectors. Very reasonably prices (Digikey carries them.) Kind of like
the Amphenol metal connectors but a whole lot cheaper. I used some to
hook up a remote for a truck mounted crane. Worked great.

-Jerry

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