Moving Gantry design is used for machines with large X-axis stroke. Normally the X-axis stroke should be beyond 10 meters or more.
It also implies that the workpieces are large and heavy.
In case of small machines, Moving Gantry design is used only in special cases like impeller machining etc. (usually 5-axis machines).
If the Y-axis stroke is also large (say 5 to 6 meters), then the X-axis needs two ballscrews (two motors and two measuring systems) and a software to keep skew in control.
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smabhyan |