I had no heat set nuts and a lot of PC4-M6 passthrough connectors. Hence, this modified lid was born. It has the added bonus of allowing the PTFE to pass all the way to just above the gears.
Print as per skelestruder print guide.
You will need a longer PTFE tube by a few cm, otherwise there is too much tension and the MMU may not home correctly. Cut it so you have enough that it can comfortably reach when the MMU selector is furthest right and the print head is homed at X=0.
Support not required, brim recommended for smaller pieces touching build plate.