You might be able to make it much stiffer by adding more of the arms parallel. The force should be consistent when you tighten multiple of them with one screw.

You have to choose the one without AMS color changer: https://us.store.bambulab.com/products/a1-mini?variant=41513493627016 It should be 199$

Bambu A1 Mini is on sale. Add a 0.2mm Nozzle and you have a perfect machine for miniatures

You should ask the creator. Maybe he’s unaware that people can’t post makes anymore or it’s a setting they can change.

Make the movements visible in preview. Most probably it makes the total movement shorter when switching between parts.

Is it only me or does that CoreXZ kinematic not make any sense? They gain the ability to move in Z in high speed but add ringing etc. in Z direction.

Prints can be scraped using microplane cards (can be made yourself from spring steel with a hammer). I really like this method as it leaves a smooth surface.

Explanation: https://m.youtube.com/watch?v=a4e9JJkinvk