1. Begin assembly

The file should come preloaded on the flash drive so that you don't have to download

Is it OK to use a dry lubricant like graphite or molybdenun disulfide on the coupler pins?

The introduction should maybe include some background on why this step is necessary. My impression is that this is more aimed at print quality, rather than wear resistance -- friction at these points can cause slight inconsistency in toolchanger alignment, resulting in layer lines in the prints. Also for one of the commenters above, I see the file under 'XL printable parts', go to Files -> Parts for maintenance -> tc_greaser.

The file is gone from printables?

Just a thought... Why would we not just lubricate the 3 reciever connection points rather than the 3 pins per head (15 locations)?