BUILDING YOUR OWN
To build your own ZenBot, go to the project page
at makezine.com/go/zenbot to download the
Fusion 360 files for printing and the Arduino code
for the microcontroller, and to watch my video
tutorials that will take you through the build in
fine detail.
Take care to measure your components well.
Drums and mallets that are handmade are not
always built to exact measurements. If yours are
a bit different than mine, you might need to make
minor adjustments to the robot parts. This is
where the Fusion 360 files will come in handy.
TAKING IT FURTHER
Now that you have the skills to build your very
own ZenBot, here are some ideas for taking it to
the next level:
• Convert the code to accept live input from a
MIDI keyboard, or maybe turn it into a modern
MIDI-controlled player piano-type instrument.
• Experiment with the anti-dampening
mechanism or create your own version. Maybe
try a flexible/compliant mechanism instead of
the elastic band to make it more durable and
use fewer purchased parts.
• Make the trigger button wireless. Maybe
use Bluetooth or RF to trigger the drum from
a distance.
• Design a smaller, low-cost version by using
a smaller drum with fewer tongues. Reduce
the servo count from 14 to 7 by eliminating the
need to rotate.
• Or take what you learned here and apply it to a
xylophone, tubular bells, chimes, or any other
melodic or percussive instrument.
No matter what you do with it, one thing is for
sure, you will have a beautiful functional art piece
that is sure to be a great conversation starter!
H
G
Matt Alavi
69
make.co
M81_064-69_DoorbellBot_F1.indd 69M81_064-69_DoorbellBot_F1.indd 69 4/12/22 11:37 AM4/12/22 11:37 AM
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