Nomad bed flatness

I was curious how level the Nomad bed was so decided to measure it. Since I have a 3D probe I can produce a nice 2D image of it, so here you go:


Those small 0mm spots in the image are from the mounting holes and screws on the bed. Those can be ignored.

I was surprised to see that the deviation is 0.05mm (I think 2 thou in Imperial?). That seems like a lot to me but I don’t know what’s normal. I suppose you’re meant to put something on top of the bed and then surface it anyway.


At some point production of Nomads included surfacing the bed using the machine as part of calibration/commissioning — not sure when that process was begun. Contact us at and we’ll do our best to work through this with you.

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I have one of the Nomads before the production surfacing. When it first arrived the front right corner was 0.35 mm higher than the front left corner. I can certainly imagine the MiC-6 plate warps a bit when getting tightened down, errors in the other parts add up, etc, etc. Resurfaced it and within .015 mm all 4 corners and the middle.

Call me odd but when I bolt the threaded table on top I do the bolt tightening in the same order I would when putting a head on an engine cylinder - center first then cross pattern. Does it make a difference? Probably not but it calms the demons in my head.

What I do need to do is surface the threaded table - that looks more like what you see on the bed.


The thought did also cross my mind that if one did bolt something not perfectly flat to the MIC-6 bed with enough torque and kept it on there perhaps that would eventually warp the bed as well? That bed is cast aluminum but not exceptionally thick. Not a metallurgist here…


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