Kevlar is a lousy material for a router. It is strong in ways it doesn't need to be for a mill project and not strong in ways a mill requires.
Carbon fiber is more rigid than glass but expensive. I think glass could do a very good job if done properly. Vacuum bagging would be a given, on account of the high frequency vibration it would be subjected to.
One of the things that made me think of glass is that I cut a lot of aluminum and sometimes I use carbide tipped wood tools like the table saw. A carbide tipped blade or router bit will cut aluminum like butter as long as you keep the blade lubricated with WD-40.
I intend to build the Joe 2006 r2 CNC router but I worry about the compatability of MDF and WD-40 or other lubricant. |