"DeusEx"

[mocha]

thanks guys! :-)
I'm fairly happy with the state of the design for Y but the Z still needs some more work. Looks like about 150mm from the ball nut that moves the Y to the centre line of the spindle. Using HWIN 15mm rails would drop that to around 130mm, but 20 mm of those numbers are the spindle mounting plate! The Z ball nut is 94mm from the spindle centre. But it's difficult to see with these crayon drawings :rofl:

[Jonathan]

As long as the ballnut is directly between (zero distance measured parallel to X-axis ... hard to describe) the two Y-axis rails then I think 130mm will be fine as the aluminium plate in between is very strong and should not flex much. If you have not already try setting the rails/blocks on the Z-axis into the plate - i.e. mill a slot for the rail and pocket for the blocks. That will reduce the distance further though you'll have fun fitting the Z ballnut as that will also require a cutout.