I was thinking about designing one of these and came across this one. I printed it and realized it won't fit on the X1C on the top where it really needs to be. It fits fine on the bar below it, but my PTFE tube doesn't hit that part. The top on the X1C has foam to help the glass not rattle on the printer. The glass sits on the foam, so there isn't any room to put this unfortunately. I'll keep thinking on what I want to do for the X1C. It's not a huge problem, but when prints do go on the back right of the printer, the PTFE tube definitely smacks that bar.

it snapped in half on the first try inserting it