I will try that today.
There are only 4 +5V on the C25 Board, I have 4 Geckos, all the limit switches etc..
Also I did something pretty dumb so i don't want to put to much stress on the Smothstepper
my idea was to use all the 5V from the 5V power supply and it has more then enough current to run everything etc..
which version of the smooth stepper do you have ?
a USB or ethernet smooth stepper
with 4 stepper divers you need the C25 to supply about 120mA
when all the C25 outputs go low and about 15mA passes through each of the G202 input opto-isplators
taking the +5V from the smooth stepper should not be a problem
when using the external 5V supply as in your diagram
I would expect the power supplies +5V connector will be big enough to take all the +5V wires from the four G202's
But if you opt to take the +5V from the C25
you could run a short wire from the C25 and use an additional terminal block to join all of the G202 +5v wires together
leaving 3 of the C25's +5V terminals free for other uses
what kind of limit switches are you going to use ?
I am using just plain micro switches and i am running a Ethernet smooth stepper
I also notice my 5v power supply is punting out 4.9v, i don't think that will do anything ??
5V logic usually works with a supply between 4.75 & 5.25V
as the smoothstepper inputs have a built in pull up to +5V
for Pins 10, 11, 12, 13, and 15 of all 3 ports
I assume your going to wire the micro switches as normally closed switches in series
and have them connect a smooth stepper input to ground until a switch is tripped
( normally open switches in parallel also works but your system will not fail safe if the switch wiring has a wire break )