Category Archives: EMSL Projects

Using the WaterColorBot to teach programming

Water color painting titled Ocean Woman
JR has been volunteering in a high school programming class and wrote up a thoughtful post about his experiences using the WaterColorBot in the classroom. He wrote a Python library that allows users to directly control a WaterColorBot by writing Python code.

To be honest, this library is a pretty insane way to control the bot. It’s needlessly low-level: you’re manually controlling the brush’s position, you’ve got to remember to wash and re-ink the brush every so often, etc. If your main goal is to just get the bot to paint a pretty picture, there are lots of better ways to go about it.

As a teaching aid, though, it’s been a total success, because it lets students flex their burgeoning Python skills and actually make a real thing in the process! We’ve been blown away by the stuff our students have created.

He has also documented and shared his code on github.

AYAB v0.90 is here!

AYAB (all yarns are beautiful) Logo

The All Yarns Are Beautiful project has just released a new version of the AYAB software, v0.90!

It’s a bugfix-release, that means it fixes mostly known issues and no additional features are introduced. This is necessary to get more stability in the software and to have solid foundation for future developments.

If you’re using our AYAB Interface, we’d encourage you to upgrade. If you want to contribute to this project that brings new life to old Brother knitting machines, head over to the announcement to read more.

From the mailbag: Sciencey!

Dave wrote in about the EggBot:

My daughter wanted to tell you that she loves your creation. The other day she told me that she is more sciencey than girly, and I told her that she could be both. I have attached a picture of her with her first multi color print, Wonder Woman.

Thank you for sharing, and the egg turned out great!

Evil Mad Scientist Valentines: 2017 Edition

2017 valentines

Today we are releasing our newest set of “Download and Print” cards for Valentine’s day. This is our fifth year, and fifth set of cards: The 2013 set had six equation-heavy cards, the 2014 set was a set of six symbol-heavy cards, and the 2015 set included love, hearts, and arrows. The 2016 set featured Pluto’s cold heart, and the perfect card for your robotic expression of love.

This year’s set features relativity, atomic orbitals, exponential growth, an LC resonator, and an epsilon delta declaration of love.

You put me in an excited state

“You put me in an excited state.”

Roses are red...

Roses are red. Which does suggest that they’re moving away from us, quickly.

Epsilon delta proof

While this sounds much like an “epsilon delta proof,” it lacks the logical rigor that we would normally associate with one. It’s more of a postulate, really.

Limit of sin(1/x)

“You make my heart feel like sin(1/x)….” If your heart isn’t jumping yet, you’ve probably never tried to graph that.

exponential

The original title for this one was “my love for you grows exponentially.” But hey, your valentine is smart (or you wouldn’t be sending these kinds of valentines): Let them do the math.


2016 valentines

You can download the full set here, which includes all 30 designs from all five years (a 1.5 MB PDF document).

As usual, print them out on (or otherwise affix to) card stock, personalize, and [some steps omitted] enjoy the resulting lifelong romance.


Update: New cards have been released! Please check out the 2018 set, which contains all 36 cards from 2013 through 2018.