Re: Heck of a time tuning servo motors.

I'll just reply to all the replies at once to save nouse on the list :

MikeC :
I figured as much power wise. It seemed like a lot of power. I have
run them with the pulley disconnected and it moves smoothly and with
a reasonable amount of torque (seems like). I'm not sure if I'd say
the handwheel is "free and easy" its not tough, but its not easy. I
have the gibs adjusted fairly tighly to eliminate slop. Also the
anti-backlush nuts are a bit on the tight side. Next experiment for
tonigt will be to loosen the machine up and see how it performs.

deanc500 :
Not sure about whether they are industrial or servo. They had double
ended shafts and mounting position for encoders which I put on my
self. I'll try the low voltage test with a D cell battery in a
little bit. It does have symptoms consistent with sticjing at slow
speed. Seems to buzz when slow, but low current and fine when moving
quickly.

bill :
Doesn't feel especially tight, but I'll try messing around a bit in a
sec. Figured I'd take a break and eat some food and veg out before
attacking it again. The coupling is really just a set screw to a
timing belt pulley. I'm not sure how that could be misaligned enough
to cuase a problem.

Thanks for all the advice. I'll let you all know how it works out as
I know more.

-Erik Reikes