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14-09-2010 #5
Hi Steve,
Here's a sketch I was working on a while ago. Double X axis motors, all ballscrews, profile rail Y and Z, supported rail X. Gantry sides are RHS with spacer block connection to gantry. Y axis ballscrew is underneath to give a low bending moment on the gantry sides. Disadvantage is risk of collision damage and swarf ingress (needs shield).
Maybe some ideas in there.
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