Corona chronicles: LEGO egg spinner for Easter

Our EV3 version of the LEGO Easter egg decorating machine.

Like so many others, the Renaud Empire has been staying put at Renaud Manor.

With Easter approaching, I came across a link to directions to build a LEGO egg decorating machine

As soon as I saw it, I knew our half of the Viper Bots (Ludi, Josie and Joseph) would be interested in giving it a try.

Josie prepares to color an egg with the LEGO egg spinner.

A couple of key differences. First, the original instructions used a battery-driven WeDo motor. We have an EV3-based robot named ViperEvie, so we connected an EV3 medium motor to her. It was a little tricky anchoring the medium motor to the LEGO mat, but I figured out a way to do it. Second, we had trouble with eggs rotating and falling, despite trying many adjustments. The thing that worked best for us was adding rubber tires to the back wheels.

We made a video showing the results:

H/T to Lauren Kornegay-Dollar for sharing this link with us!

Houston, we have some Unicorn Girls!

The Unicorn Girls robotics team from Vogt Elementary at their St. Louis Expo

Over the past few years, I have coached both First Lego League and First Lego League Jr. teams at Vogt Elementary. The older FLL team has always been called the Viper Bots. The younger team has changed its name over time: First they were the Sci Girls, then the LadyBots. This year they became the Unicorn Girls.

Well, we ended up having so many interested 1st-3rd grade girls that we had to add a second Jr. FLL team: the Unimermaids. It was quite an experience coaching these two teams, along with co-coaches Yoli and Heather Roberts, and our middle school helper, Ludi.

Continue reading “Houston, we have some Unicorn Girls!”

Viper Bots’ last hurrah?

This was my fourth season coaching an FLL team. This year all three Renaud girls were on the team: it was Jadzia’s fourth and final year, Ludi’s second, and Josie’s first.

The Viper Bots are a school-based team, so we begin when school begins in August at Vogt Elementary. After that, it’s a race to build and program our robot, research a project, and write a presentation by November. It is pretty exhausting.

Continue reading “Viper Bots’ last hurrah?”