Z Axis Help Appreciated!!!!!

[ger21]

I'd try running them direct drive first, with the settings I mentioned above, and playing with the acceleration.
Another thing that may make a large difference is adding a damper. If you're seeing resonance, a damper can sometimes double performance. See this thread for more info. http://www.cnczone.com/forums/stepper_motors_drives/32284-my_take_stepper_damper.html

Gecko G201x's are about $125 each. Then add the cost of a 72V power supply.

[Jugster]

Just thought I would give an update!!!  I have run the router hard this weekend non stop!!!  Both Saturday and Sunday.  I haven't had as much as a glitch.  Which leads me to believe that if I do anything is purchase a ball screw to reduce friction.  All of this really gets me motivated and thinking about the next machine!!!  I am wanting to build one with a fourth axis, just gotta keep it under the radar as my wife will probably not be real happy.  That's why as men we must keep what I call mad money hidden!!!  Just wanted to let you all know that I appreciate all of the help.  This forum rocks!!!  Anyone that can read can find an answer to just about anything DIY cnc related.  Keep posting any input that you may have, as I am always keeping check.  Soon I will be posting some of the work I am doing.  Some things I can't post as they are prototype and are currently going thru the patent process.  (Things that I am working on for other PEOPLE!!!!)  Some of the other stuff I will be glad to show.  Any ideas on where to post them?  General discussion or some other area?  Everyones help is greatly appreciated!!!!

[ger21]

Try oiling the acme screw, and keep it oiled regularly.

[olf20]

I'm very much a watcher / reader.
As money is a problem with most of us
I would suggest you follow the suggestion of Ger21 and Rich. You can
purchase one Gecko 201 and run it on your current power supply.
Then build a 72V transformer. I built one from a
micro wave transformer and still run it 5 years later. I think you will
be impressed with the Gecko's and the higher voltage for $$ / time
invested.
Just my opinion.
olf20 / Bob