[Outlawtaz]

Thank you, Chris.

I am not quite understanding your question. I use powered
ball nuts. The servos spin them, the ball screw is fixed. How
would you drive a rotating ball nut with a direct coupling?

Ahhh. That makes a little more sense. I guess I learned a couple things this morning. 1. Don't post when really tired before going to bed. 2. Don't skim over pics and just look at the thumbnails. Oh well, such is life...

Like I said, I built my first one based on what I know and with cheaper materials just to learn and play. Now, I want to rebuild it into something better. So, I'm looking over everyone else's machines and trying to see pros and cons of each design. You had said that you have played with your design for quite a while before actually putting it together. Just curious why you used this design and what you think are the benefits to it...