Pen Lift [with suspension]
This pen tool head addresses one of the most frustrating challenges of using a pen plotter: drawing on uneven surfaces. After experimenting with numerous solutions, I found an effective and simple answer—an elastic band!
Parts List
The components for this tool head can be 3D printed individually and assembled using:
2x M3 screws
2x small springs
2x LM8UU linear ball bearings
2x 54mm lengths of 8mm metal rod
1x rubber band
This combination creates a flexible and adaptable tool head capable of handling minor surface irregularities. See below for assembly:
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