solarbird | I made another thing

This is a remix of an already-quite-good blade holder, specifically for Ender 3-series (and similar) printers. It comes with the printer and while I won't use it on the heated surface (and nobody should really), it's really handy for removing large blocks of support from prints. So instead of living in the extra-parts box in the closet, it now has a place to live on the printer.

My addition to the existing design consisted of moving the main anchor point from the top of the holder to the sides, so the actual securement is on the side of the printer's aluminium frame instead of the top. The reason I care about that is that if you use groove covers to keep dust out of your printer frame (and for general neatness) then you can't use the original design.

Now I can use it with slot covers.