Project 2, an independent project due near the Final
Exam
Group projects are highly common in real world problems, so if your
first project wasn't a group project, your second project should be
a group project. The group size shouldn't exceed three students.
The project topic can be anything related to 3D printing or
robotics, and can extend project 1 or go in an entirely new
direction. Ideally it will be something you're really
interested in, but small enough you can make substantial progress by
these deadlines:
Project topic: Friday, November 6. Be ready to talk
about this in class, with the goal of explaining what you plan
to do, in order to collect both advice and like-minded
students. You should have:
Some idea of what you want to accomplish.
Some idea of what tools (hardware, software, and
skills) you'll need and where to get them.
Project rough draft: due in-class Monday, November 23.
Bring any hardware and/or collected data to class, and work on
them as I cycle through your groups to try to help. By
this point, you should have:
A clear idea of what you want to accomplish.
All the hardware you'll need to accomplish it.
A plan for accomplishing it.
Some concrete progress on your plan. (It
doesn't need to be tuned or finished!)
Project presentations: the week of December 7-11. Your
technical presentation should include:
Some sort of digital presentation aid: powerpoint,
some figures, charts, photos, or a video.
Sufficient detail to explain your project to a smart
person that knows nothing about 3D printing or robotics.
No more than 7 minutes of content, leaving 3 minutes
for questions. Timing will be ruthless!
Project final draft: due by midnight Friday, December
18. Write this up as a technical blog post (no blog?
Sign up at wordpress.com).
Your post should include pictures, video, and/or code, and
cover:
What problem you were trying to solve
What other people have done on the problem
What you tried to do
What worked well
What you would do differently if you could do it
again
Project Topic Suggestions
The most important part of picking a project is picking a subject
that:
you care about,
is relevant to the course, and
is achievable in the limited time
For example, "design and build a new 3D printer" sounds great, but
can't be done in 6 weeks. "Design and build a 3D printer stepper
motor mount" is achievable.
Possible project topics include:
Part design & fabrication
Design, build, and test any part for any robot or 3D
printer, using any toolchain
Combine an Arduino and motor driver circuit, with any
motor, pulley or leadscrew, and linear guides, to make one
axis of a 3D printer or CNC cutter.
Disassemble a dead 2D printer, and figure out how it
coordinates the X and Y motion of paper and printhead--does
it use encoders, or steppers? How many wires?
Could you use any of the parts in your own projects?
If your 3D printer supports it, use M503
to report, and M20x to tune, your maximum speed, acceleration,
and jerk values. Be sure to compare before-and-after
print quality.
Adopt an old robot or 3D printer, figure out what's wrong
with it, and how you could fix it.
Gcode tricks
If you've never done it, download and configure a slicer,
and slice an STL model to create gcode. Read the gcode commands
and figure out what the slicer is really telling your printer
to do.
Write a program to read gcode and do some useful task with
it:
Shift the print in X and Y to avoid that bad spot in the
bed.
Add a pattern to the X and Y moves to tattoo your prints.
Start the print at a given Z so you can restart after
running out of filament.
Robotics
Use an Arduino to command a set of R/C
servos to accomplish any coordinated motion, like
spooning sugar into a teacup.
Calibrate and tune any parameter of your robot's motion
For example, figure out how many wheel encoder counts you
get per meter of linear driving, or per 360 degree rotation
of turning
Drive a robot--any robot--along an interesting path
Drive right up to a wall *without* touching it (e.g.,
using an ultrasonic range sensor)
Attach dry erase markers to your robot, and draw
spirograph-style designs on paper
Design a crash bumper to keep a UAV from shredding its props
when it crashes.
I highly recommend using as many existing tools as possible, like:
The many existing 3D design packages
The many existing Arduino libraries
The OpenCV library for computer vision
Our RobotMoose
web-based robot communication infrastructure
Be sure to cite the tools you use, even those used as references for
your design!