Building a Drawbot With LEGO
Intro: Building a Drawbot With LEGO
This is a very simple drawbot I've built with our Lego Mindstorms set.
It's quick to build and program and once you've got it up and running you'll be printing one page after the other with it.
STEP 1: Make a Detailed Construction Plan
Just kidding, this is my sketch I made at work.
STEP 2: Building the Gears
At first I didn't build a gearbox. It worked, but the pen was flying over the page. I have the smallest gear directly on the motor and the largest connected to the small one. That makes it a lot slower and gives the pen time to leave a trail on the paper.
STEP 3: The Pen Holder
As you can see it's just a rubber band holding the pen. Makes it easy to change the pens.
STEP 4: Program It
I know the screenshot is a little blurry. But there is not a whole lot to do. Just let the two motors rotate.
Just make sure that both motors are NOT turning at the same speed. Otherwise they will draw a nice shape but will keep on repeating it over and over.
STEP 5: Let It Draw
Place a sheet of paper under the pen, start the program and watch in awe. ;)
There are three things you can do to alter the shape of the drawings.
- Change the ROTATION SPEED in the program.
Changing one of them will be enough - Move the rotation-point at the motor (rotator).
- Move the rotation-Point on one of the axis
STEP 6: More Videos
A general overview how the drawbot works and where and what to change to get different shapes
15 Comments
NicoleB199 6 years ago
what are the materials and insturctions
craftclarity 9 years ago
An update on the Spirograph....wayyyyy cool!
krummrey 9 years ago
And it makes NOISE! :D
rayaplin 7 years ago
how do you build a drawbot with LEGO
rayaplin 7 years ago
thanks.
mslab6 8 years ago
How can I build one of these? Do I just look at the pictures? Is it possible for you to give me worded instructions with pictures? Thank you!
krummrey 7 years ago
Yes, it's a freestyle project. Will work even if you're off by a notch or two...
Verticees 9 years ago
Fantastic project! I was wondering: I noticed that your pen often got caught on the paper while drawing. If you were to make the pen holder at an angle, would it become more stable during the drawing process?
krummrey 9 years ago
Hi innovator007, thanks for your hint. I think it is the gears from lego that have a little leave and that makes it wobble. Building it stiffer probably resolves that. having it at an angle probably too, have to try it sometimes.
Verticees 9 years ago
Good point. I plan on making this sometime soon, so I'll try building it stiffer and holding the pen at an angle. I also plan on using a ballpoint pen for fun. Thanks!
alienate 9 years ago
This is great, I wonder if it could be made to move for larger drawings?
krummrey 9 years ago
Here's one, that someone built. A lot sturdier, but the idea is the same:
krummrey 9 years ago
HEY, this instructable won the second prize in the makerfamily contest.
Thank you all!!
someone_678 9 years ago
krummrey 9 years ago
Where exactly are you having problems building one?