Quote Originally Posted by Jonathan View Post
If the rails are contributing significantly to the stiffness of the material you are using for the Z-axis then that material should be made thicker/stronger. Still definitely put the rails on the front plate, but primarily for the second reason - the supporting carriages are closer to the bed.
Not sure why you felt the need to post that.? . . . My point was the rails on front plate is much stronger way and no where did I suggest useing it prop up a flimsy front plate.!! . . . Thou if we are splitting hairs then a correct design should factor in all materials plate rails etc to give optimum strength without over engineering which wastes money and effiecency.

Bottom line rails on front is stronger.!!