Does anyone know a source for roller-style linear guides? about 32" or 800mm

Of particular interest to me:
NSK RA Series
HIWIN RG Series

Mcmaster has an unknown brand available
https://www.mcmaster.com/linear-bear...guide-rails-5/

I Don't know anything about this Supplier, but they seem like they know what they are selling.
https://www.tuli-shop.com/linear-mot...r1a-linear-nsk

Ebay has many options in short lengths that would be great for the short Z-travel, but few options for X and Y

The purchase is for a build of an ultra-rigid machine that I am calling the Dumpster Datron after the E. Reese build of the Junkyard Datron. Mine is so far looking very similar to the Piotr Fox Wysocki build. Linear Guides on a granite surface plate. I am not yet certain how realistic my goal is, Im hoping to achieve the surface finishes that Datron machines can provide, but without high expectations for accuracy. The machine would be used to make soft tooling injection molds for non-critical plastic parts that must look nice. The factors that I believe make this a fairly realistic goal is the tiny work area of 24x24x4" and starting with a Grade B surface plate.

I had considered using the Hiwin HG25, but they are half the stiffness.


Piotr Fox Wysocki