New Z axis with Pen Auto Leveling
thingiverse
The drawbot just got a major upgrade - a brand new Z axis that's solid, precise and lets the servo movement lift the base up and down. That means no more relying on gravity to get the job done. A fresh "mini PAL" system is also in place, featuring a soft spring with a 16.5mm diameter that keeps the pen perfectly level with the paper at all times. To make it work, you'll need: - Two M3x15 or M3x20 screws to secure the top - One M3x10, M3x15 or even M3x20 screw to hold the pen in place - Three M3 nuts
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