I've seen a few people have the table move out on the y-axis beyond being flush with the saddle.
My question is how much is ok? I am trying to size a y axis ballscrew and I need to allow for this, as well as a kind of riser for my servo so it is positioned further back to let the y-axis come out.
An example:
You can see his y-axis coming out further than usual here.
You can have it come off the front quite a bit, the real question is how far is useful. Imagine a part clamped to the table and its resting at the very edge of the back of the table. That represents the largest part you can machine, unless your table doesn't bump into the column, in which case a part resting against the column with the Y centered is the largest Y axis dimension you can machine. Now to machine say the edge of that part you need to move it under the spindle plus the radius of the cuter. I'd use 1/2" cutter as a size so that's another 1/4" past center minimum. Wherever that puts your Y has to be acceptable in my mind if you are making full use of your travels. It still should be less than half the length of the ways.
Allowable y-axis overhang?
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