I'm buying 3x Roton ballscrews and ballnuts this week for my Grizzly X3. For the conversion, I'm machining all the aluminum pieces myself rather than buying a kit. I'm also bribing a machinist friend to turn the ends down on a lathe and do the threading on the ends.
My question is, should I secure the ballscrew from both ends, or just a single side like the CNCfusion kit? (see link below)
http://www.roton.com/application_engineering.aspx#16
The link above shows four styles of mounting a ballscrew (fixed/free, supported/supported, free/supported, and fixed/fixed). The CNCfusion kit seems to be fixed/free. Would a fixed/supported or fixed/fixed system be overkill?