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Greets again,
I have just assembled the center piece. Everything looks 100% square without playing with tension. Still I haven't tighten the "C tension" bolts yet cause I see that in all four joints the xy pieces leave a small space (~1-2mm) from the top & bottom xyz pieces. Is that normal?!? All bearings contact with the conduits, I have a smooth motion no axis distortion or stacking. I noticed on z axis when putting it in place, that on the top xyz piece it just slide in, while on the bottom it had a little tension, just a click. Any suggestions?! Thanks in advance. It really looks and feels more rigid now