Thanks for clarifying that, I understand the logic but I would say that it would be a very limited machine tho. Light weight , slow and the added expense of two ballscrews.

The cost for getting slightly longer rails is minimal compared to what you would need to do to counter the close beraings, also bear in mind that plain friction bearings require a 2:1 ratio anyway so they dont bind


The more I use my lathe im still amazed how even large chunks of steel can flex.
Just my 2 pennth again :naughty: