Wall Drawing Robot Pen Holder (Gondola) + Side Weights
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Pen gondola and counterweights for use with vertical plotters, polargraphs, or wall drawing robots.
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Model information
- Source
- Printables
- Category
- RC & Robotics
- License
- Creative Commons — Attribution — Share Alike
This gondola can be printed in PLA using 0.2 layer height and doesn't need supports. It requires the following hardware to be fully built:
1x M4 screw 40mm: used to hold pen in place
2x M4 nut: to insert in main shaft and pen holding ring to stabilize screw holding pen
2x M8 bolt 40mm: use in main body, holds washers
2x corresponding M8 nut: secure washers to bolt
80x M8 washers (8.4 mm inner × 24 mm outer × 2 mm thick; they usually come in boxes of 100): the main weight on the body and in the counterweights
For the full build you’ll also need GT2 timing belt and a Miuzei 9G micro servo. The servo is held by friction, with no screws. If it feels loose, add a bit of tape to its sides; the extra thickness and grip will make it sit snug in the gap.
Using penny washers instead: If you’d rather use 25 mm penny washers, I’ve included a slightly larger counterweight model in a separate folder. You may need a few more washers. Note that the full build plate download includes the standard M8 washer counterweight (24 mm).
A tutorial for building the entire vertical wall drawing robot is coming soon.