3 axis cnc/router bed

[Jonathan]

If you need to mill alu then a vacuum bed is not much use since it's not going to hold aluminium. A combination of both would be good...

I could make you a bed with an array of tapped holes, or T-slots, from aluminium on my router. How thick would you want it? 20-25mm?

[dudz]

I have alot of extra unused height above the Z axis rails, so I could move the spindle and Z axis up at least 50mm. I am just a little worried that when I undo the bolts and move it all up, I might not get it all "exact" to less than a mm for trueness and squareness . I have no gauges of any sort, and I wouldn't know which one I needed.

[dudz]

Just measured the distances between each side of the Z axis rails etc... There seems to be a couple of mil out on several parallel measurements. So I guess I shouldn't worry about moving it all. I know I can get it better than this.