Here is an animation I made from the model. The distance of the hinge from the smooth rods makes a difference to the achievable build area for a given strut length. The further from the rods the better, because you can use shorter struts which means you get greater build height, but this will put torsional loads on the bearings which may not be good. In the example, I had made that distance parametric, but had not updated the model for the carriages to deal that, so there is a gap between the hinge and the bearing mounts.
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