Stand alone Spoolholder for Ender 3 S1 family

Use your Ender S1 (regular, Pro, Plus) Spoolholder to make a stand alone spool holder.

Using a 20cm roll, the overall height is 27cm.

>> NO SUPPORTS! Print like in the 3rd picture. <<
I used 3 walls and 25% infill, but probably could use less.

I have a shelf above the place I wanted to place the printer, so I wanted something that uses the original spool holder, and since I personally don't like spool holders without a tube in the center, because when the spool is light it sometimes falls rather than rolling.

Luckly I found the aluminum profile model by 3D-science, and just needed to adapt it for a stand alone

The end result is a sturdy spool holder.

Nicely snap in place.

Tip: add some non-slip rubber below!


Note:
If you want to make it shorter in height, you can remix it to make the holder in diagonal and not (almost) in vertical like I did. 

Mine is stand alone.