Look at the bottom one in your most recent pictures; there is a feature that could be applicable to DIY machines.
The Y axis has outrigger supports. There are large boxways near the center of the machine but on each end there is what looks like a linear guide but the only the top is finished and there just seems to be a shoe sliding on it.
I imagine this is to support the unbalanced load when the X is moved to either extreme.
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An open mind is a virtue...so long as all the common sense has not leaked out. |