Replace the original rubber grip from your Wacom Intuos 4 pen. The rocker extension is great for heavy users of middle and right click.
AIO robotics PLA
.4 nozzle with .4 wall thickness, 3 wall count, no infill or supports
Use a brim for good bed adhesion.
PLA works fine. Use flexible filament for a soft grip.
The rocker extension is super glued to the original switch. For a strong bond scuff the switch with sandpaper before gluing. The ridge on the bottom of the extension aligns with the notch on the original switch.