You mean, read the instructions?!? :-) Well, I'm using the Geeetech build guide and all it says is to mount the board to the top. Not the clearest guide. And contacting the supplier and Geeetech directly has proven fruitless for all issues to date, including a couple of completely defective parts (like an important nut that didn't have threads cut).

I'm looking for someone with an acrylic i3 to simply look at theirs and tell me if the top of the vertical threaded rod spins freely in the acrylic mount. I don't want to drill out that hole if I'm not supposed to.