Idk how much of a difference it would make but i believe you're supposed to do the testing/tensioning with the motors active and the toolhead in the position you used in the video. That's how I did it anyway following along with another video.
Mobilux is a lithium based grease and these are not considered safe for plastic parts, they're great for lubricating metal on metal surfaces. A silicone grease (optionally with PTFE) would be a much better choice
Just to clarify, my understanding of the suggestion here is that they're recommending silicone/PTFE grease for the application I used in this video, which was ABS printed parts sliding on one another. PTFE would be fine for that, and maybe even a better choice, but it's also true that you should avoid using it for lubricating linear rails. And thanks for the reply, Hector. If you've been following along with the build, I'm honored. Fabreeko is the first online shop I go to when I'm in need of printer parts and supplies.
