Drawbot Quick Change Pen Holder
thingiverse
Introducing a printable, quick-change pen gondola for DrawBot. It accommodates fine point Sharpies or slightly larger pens like Expo dry erase fine-point. The gondola is counterweighted with two dead AA batteries, but any other weight can be used. The Turnigy TG9e 9g servo is positioned on the servo arms. Testing pen up/down functionality requires an appropriate servo arm position. A future version will hold Sharpie Magnums. The complete gondola plate includes a gondola frame and all arms in one print. Replacement parts are available individually in sharpie_pen_holder_parts.zip. Print the entire gondola with 1 extra shell and 25% infill for sturdiness. Assemble the gondola by inserting M3x30mm screws, attaching a spring, counterweight, and pen, then affix the gondola to DrawBot using its two holes in the spring arm. Enjoy drawing with your chosen pen.
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