This is from https://openbuilds.com/builds/hd-cnc.6277/ a heavy duty CNC mill that is apparently 'build complete' but there's not much info between this picture and the final one.
Another one from the same build, this time the Z axis;
This looks to be quite a common design, so most likely what I'll build first.
Last thing, the gantry plate;
This is a key part of the build, variations of which are used for each axis in various forms. Basically it's a mounting plate for the support bearings (in this case the four sets of four holes towards each corner), the drive bearing (central four bolts), and mountings for the z axis (two sets of smaller four holes at the top and bottom middle). This bit has to be cut and drilled extremely accurately, with each set of holes being in perfect line. For example, if the support bearings are crooked, they won't travel smoothly on the rail. And since I'm aiming for the rail to have less than 0.1mm tolerance, I need the same tolerance here. I might practice creating one of these...
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