solve title by genius42.

strangely i spent more of my time on this metric than i did on instructions. jammuu was unable to play for most of the week because she was on a boat, so she instead sent layouts drawn on paper for me to tinker with. unfortunately all of our work proved basically worthless when we realized we could just put the hexarm on a track to give it enough access points to output all the metals. thanks to jammuu for the motivation to keep working. without her i would've given up 30g ago.