11:00 Monday 30 April 2018 JST
(written 00:11 Tuesday 01 May 2018 JST)
Great progress on MT3 today. I shaved the bottom of the marble splitter chopsticks so the small marble could pass under them. I made a bit of a continuity mistake though by actually lifting one of the chopsticks a bit (instead of just shaving the bottom of it).
These are pics from before the shave: