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21-01-2018 #1
I'm building a cnc for wood and aluminium.
I have a 1000mm y axis ballscrew, 1605
Also, 700mm x axis 1605. (Haven't purchased yet, 2005 maybe?)
Z axis will probably be 250mm ballscrew.
I'm looking at my z axis. It has the 2.2kw water cooled spindle.
I was automatically going to get a 1605 for z axis but, smaller would be easier on the build and am I right in thinking the 4mm pitch would be more accurate, but slightly slower?
Any real disadvantage of using 12mm ballscrew on Z axis? Cost isn't a big factor, just wouldn't mind a slightly smaller assembly.
Am I better with 4mm pitch over 5mm? Accuracy preferred over speed.
Thanks.
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