Closed Frame Machine Design

[routercnc]

Hi,

The gantry is the large fixed frame connected to the bed, in the shape of an arch. It does not move.
The X axis carriage moves the Z spindle plate left to right on this fixed gantry.
The Z axis spindle plate moves the spindle up and down
On the bed the Y axis plate moves the workpiece left to right.
Hope that helps.



Here is diesel's [closed frame / fixed gantry] machine:
http://www.mycncuk.com/threads/8510-...t=fixed+gantry

Here is Wals' [open frame / mill style] machine:
http://www.mycncuk.com/threads/7001-...t=fixed+gantry
(If you are going for max performance then use profile linear rails (Hiwin etc.) not supported rail.