Re: motor grounding and DB9 connector question

> 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