Printrbot Z-extend

After printing the sharpie color blender, I needed to push up my filament spool by a few centimeters.   This is a simple sleeve and post, to gain some extra height.  The pieces slot in fairly tightly, even to each-other, so if you need more height, you can stack them on top of each-other. 

PLA at 0.3mm layer height.

Supports and brim.