SrgntBallistic’s build noticed that the Kirigami was over-sized by 0.3-0.5mm. I did the same measurement on my kit and found that it was within tolerance - generally something closer to 0.03-0.05mm.
There is exactly one piece of paper documentation included, which is the spec for the steppers. Oh well, I knew that already.
There’s no threaded bar, just a printed nut carrier.