I have been running and programming cnc lathes and mills for almost 20 years now. I am fortunate enough to work for a company that allows me to make personal stuff after hours. Well it gets old staying until 12 or 1 in the morning machining my personal projects. I have decided to take on the task of building my own machine, I purchased the momus design plans and after drawing the machine in solidworks I am thinking it will not suit my needs. I am looking to machine aluminum and plastics so I need something with a little more accuracy and rigidity. After doing some searching I now know that I want to use linear slides and ballscrews with some hefty stepper motors. My question before I get started is should I go with two motors for the Y axis? Can I use any length ballscrew? I'm still unsure of machine size because I don't know if I am limited by the ballscrew length. Thanks for looking..