On 02/22/2018 11:56 AM, andy pugh wrote:
On 22 February 2018 at 18:27, Chris Albertson <albertson.ch...@gmail.com> wrote:
That is what I'm making too. A rotating ball nut. I looked at all the
ways there are to lift the head of a Siege X2 mini mill and I think the
question comes down to the location of the screw. I think I will use the
space occupied by the factory installed column mounted rack.
I put the screw inside the column:
https://photos.app.goo.gl/HoPVUgjsAEOLwd293
With a shim strip in a tunnel to cover the slot:
https://photos.app.goo.gl/B8maY510qUPx00Qw1
It looked quite neat but was a terrible idea. Cutting the slot in the
middle of the dovetail massively reduced the torsional rigidity of the
column.
So don't do that :-)
I have a machine that is identical to an X2. I found a tiny
little ballscrew on eBay and mounted it to the front of the
column. I had to mill out a little relief in the slider
that runs on the column.
I don't have a really clear photo of the ballscrew retrofit,
but the top and bottom photos here do show part of it.
http://pico-systems.com/minimill.html
Jon
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