LIVE Robot Party’s @ RoboGames!

Does your robot want to be at RoboGames virtually? We are going to be doing some Robot Party hangouts LIVE from RoboGames!


To keep up to date with the details, see the Robot Party Rockstars group!

Fingers crossed that the internet will be working well!

Many thanks to Awesome Kingston for the grant to be able to get us to here! It’s going to be a fun robotic time!


Here is a flex circuit project that I was working on a few months ago over break. It’s a tree with 20 blue charlieplexed LEDs. Controlled by an ATtiny85. Check out the project video! (with a cheesy video intro)

The nickname for the project is Yggflexisil. It’s sort of like the tree from myths called Yggdrasil, but this one is flexi because it’s made out of flexible material.

The inspiration for this project came from Blinky Buildings, which is from the Building Open Source Hardware book by Alicia Gibb (a director of OSHWA)!

All of the documentation can be found on my new project wiki. It’s named Robo-Phoenix Laboratory because no matter how many times things will “go down in flames”, a new (robo) phoenix will arise. Quite poetic, and of course phoenixes are cool creatures. Source files are available on Github.

Thanks to my backers on Patreon for supporting this video!

Here are some of the highlights of the project-

NinjaFlex resist on the Pyralux:


Had to make some tiny cuts for threads of the NinjaFlex that might accidentally bridge the traces:


After etching. The boards caught the light in a nice way:


Soldering all of the wires. Resistors are 0805. The 8 pin DIP socket looks giant compared to them:


Completed with a 3D printed base. Coolios RoboBrrd seems to like it!


If you want to see all of the steps, check it out here

Until next time!

Flexure Mech Prototype, Points in Antimony

Just finished a week of Fab Academy where I learned a lot of info and tried new things! There were some interesting fails and challenges along the way. The first half was creating a flexure mechanism, and the second half was learning a little about function representations and importing points into Antimony.

Here are the highlights, if you want to read all of the details please see my Fab Academy page!

To continue working on the robot project, I created the first test of a flexure mechanism. It is based on Flex-16.

3D printed in PLA. Uses a micro servo and a paper clip linkage:


Here you can see the flexibility of it (though this was in ABS):


There is too much movement in the z axis to make it useful in the robot idea (see vine video above). Have an idea on how to make the next one. Flexure mechanisms are pretty cool, I’m excited to try to build a robot with them.

For the scanning aspect, I wanted to be able to display slices of a 3d model in Antimony and maybe blend two models together.

Here was a first attempt that failed:

tri top view

Went to the idea of just displaying shapes where the points are. It sort of resembles the Stanford Bunny:

bunny view

Created a node for Antimony that reads in the points. 3 of them in action to display the pieces of the Fab Lab logo:

fab logo reading node

More info about these is on my Fab Academy page.

Lots of electronics coming up next. In the lecture, I can’t believe people used to use tape to make circuit boards by hand! The fab modules has an EDA tool where you can make the board by typing commands. It will be interesting to try it out compared to my previous gEDA experiments.