I have an idea for a mini mill. To machine small parts in aluminium and steel. I see LMS sell the Hitorque mini mill castings.

Base:
https://littlemachineshop.com/produc...4308&category=

Column:
https://littlemachineshop.com/produc...4307&category=

How would they be for a base of a small diy CNC machine. Remove some of the dovetail to make space for rails and bearing blocks and use the base surfaces which should be flat on these as mounting surfaces for linear rails.
I read the ways on them are not perfect, but I guess they are better than what I can do myself. I do have a router which I can use to remove som material where needed, but I do not thrust it to make things flat and parallell.

Like shown in the picture. This is with 20mm rails. 1 long bearing block per rail.

240mm rails on Y to get about 140mm of travel. The drawing has 250mm rails, but they stick outside the base.
300mm rails on X to get about 200mm of travel.
350mm rails on Z to get about 250mm of travel.

Maybe want to have longer rails on X also, and possible 2 bearing blocks on each rail on X and Z.

But the question is, the castings. Are they good and worth the money?