Music Programming Plates Part 3 - Marble Machine X #65

Check out part 1 where I explain how the hole pattern is designed: Magnet “Midi“ Music System - Marble Machine X #25 Check out Part 2 where I claim to be making the final version of this, but as we now know, it was nowhere near the final version: Making the Music Programming Plates - Marble Machine X #59 This is the one part of the Marble machine X where I can not compromise on the precision, its so hard to get the precision of the four joints between the quarters down to a hundredth of a mm around the whole circumference of the prog wheel. It feels like my engineering knowledge level is playing catchup with my music precision knowledge level. I put the highest demands of the accuracy of these parts and its really tough to get it as precise as I want it! Been thinking about how to solve this for a long time and I am finally going up that mountain, raising my sword and walk