After a pretty long wait, the 3Doodler turned up in the mail today !

Of course, you can’t lose any time getting started with it, so I opened up all the tutorials I could find so I could get started drawing. Getting started was easy enough, with the biggest problem being the question : “What to draw first ?”

Well, I got it soon enough. I should make myself a pair of cool shades / safety goggles to show off / work with. So I grabbed myself a pair of shades, sketched an outline (to ensure good fit), fired up the pen, and got started. The first results are below !

3DG Glasses

Using the pen is fairly straightforward, you just have to keep drawing. Adding “finishing” touches so as not to leave strands dangling can get tricky, and I guess I’ll have to learn how to finish the strokes smoothly. It will also take a little time getting used to the flow of plastic to avoid the wavy and thicker lines in some places.  Also, the tip gets really hot (like a soldering iron), so be careful !

That said though, it is totally cool to be able to draw your wireframes or objects in 3D, it’s like taking things to a whole new dimension (quite literally !). I’m off to figure out what to do next, keep watching 😉

Controlling TiM LED Matrix boards with Arduino Uno

I have a TiM LED board from my helpful maker friends at Wyolum to play with, and was wondering what cool application I could make out of it. I was thinking of games, animations and the like, and started to put things together, just to test waters and see what it would look like.

Well, first roadbump. There were a couple of things missing. They weren’t so big as to cause major inconvenience, but it definitely would help visual applications if I added them. I am talking about row manipulations, allowing us to manipulate the board as a whole (or a collection of rows) , rather than as individual pixels.

Well, having had some experience with programmable RGB LED strips before (though those were LPD8806 based, not WS2811 based), I quickly added the helper methods, and put together a quick sketch using the ever-so-useful Arduino Uno. I made a quick video of it, I am going to keep playing with it for a while, something cooler just might be on it’s way ; )

Here is the github link to the sketch and the library : https://github.com/ankitdaf/TiM/

And here is the video :