Yes it's a self build. Kind of.
There was this old guy (RIP...) I got to know through another forum, that made these kits.
He had a giant router with which he cut out parts for smaller ones. He sold the kits with MDF-parts (and HDF for the thinner parts), nuts'n'bolts, motors and motor controller.
We were quite a bunch buying kits, (9 years ago) but only a few ever assembled all the parts.
I helped him develop a newer version of the electronics afterwards, so I'm the only one having the upgrade.
The old ones don't have the enable signal to the motor controllers, so they're on all the time until you cut the power...
Aaaaaand my building pace has been very slow...
I modified the parts to my liking, painted them, assembled them, added some micro switches and electronics, shoved the cables through flexible conduit, and built this control/interface box:
Which has the PSU, a spindle relay, the break out board, motor controller (motor driver chips Allegro A3979SLP), emergency stop circuitry and everything else.
Connected with a parallell cable to the computer, running Mach3.
Here's a wider shot when I test the three axes.
It's as close to ABB robot-orange I could get.
Three bipolar stepper motors (57STH41), M10 threaded rods as feed screws, and mostly backlash-free nuts out of delrin.
And the spindle motor is a Kress FME 800.