Thread: Reason for lower bar on gantry?
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26-02-2013 #1
You generally see that bar added underneath when people use only one ballscrew to drive the gantry, since with just one screw you need to attach it to the centre. For anything but the smallest machines that's a silly idea anyway, since then you should use two screws and the connecting bar underneath is no longer needed. In fact it's good to get rid of it since then you can support the bed and rails better.
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