Router_Way

Hello all, I have just posted a section view of a proposed method of
construccting the main ways of a small CNC router. The moving section
would used the cheap roller blade bearings attached to a piece of
32mm hex ali bar. This would slide on a length of 19mm hex brass of
steel bar. I would appreciate the expert opinion of the group as to
whether this approach is feasible and what are the pitfalls involved.
Thank you in anticipation.
Regards
John C

P.S the file is called "Router_Way"