Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I see..
all say: most important: KEEP IT SIMPLE.


It just hapens i have some of this Molybdenum grease (in a spray can)
here. So i will use it.


The motors, again...

I wonder wich power the steppers should have.
200 steps is ok?
Most motors are rated in volt / ampere....
I know it would be better to compare them by N/m but the ones
i have are not labeled in torqe...


I have some, but they are too small i think...
So please anybody having firsthand experience please tell me what is
needed.


I also wonder if the main axis should be driven by one or two motors.
If there is only one motor the screw is centered. or two screws are coupled
by tooth belt... isn't there the problem of carriage skew if the spindle
is centered and the load applied on one side only?


thanks
st