few more sketches throwing ideas around.

I'm sure I missing a lot on not knowing the best way to make use of space

the first was pushing everything up underneath but makes getting to everything for servicing very hard

the second putting the screw back on the out side but underneath means chips from the 4th axis are going to be going straight onto the screw, some shielding could be provided but I would expect it still to not be great.

I guess I have to make a compromise some were and ether the machine has to be longer or the 4th bolts onto the bed

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