Let's Make Robots!

Theo Jansen style robot leg: prototype #10: forget about brass!

Getting closer and closer. Today I needed to clear my head. I really were dreading mass producing my legs with all those brass pivots. During a nice walk in the sun, I figured I would try 10 mm beech smooth dowel rod.

[This photo links to my Flickr set with many more details.]

IMG_0421

 

Advantages:

DC motors: "altered brush timings"

In this thread, under Chris' noise question, Cliff suggested that motors sometimes are optimized to run in one direction. To the detriment of the motor's performance when running in the opposite direction. Ken observed the same thing in car-window-wiper-motors. Now I want to know more about this.

Have a look at the motor I use for my Theo Jansen Leg experiments.

dcmotor-commshift500.jpg

Quiz: guess what "this" is...

No prize beyond eternal glory. Guess what "this" is. (Newbies, my squares are 5x5 mm.)

tr_composite500.png

Bonus points for pictures that might have inspired "this". Even more points for sketches of possible applications for "this".

Rik

The Pulse - Howto

LMR on the Brain
Sensing the living LMR community since 2008w43.

Tradition

There have been enough episodes of this "periodical" to call it a tradition now. And I decided to give you all a sneak peek into the Pulse's kitchen. Consider this a "Howto Write The Pulse".

Theo Jansen style robot leg: prototypes #8 and #9, I suppose

My Theo Jansen Leg is finally starting to become something reproducible. Every step in in this arduous journey has been aimed at reproduction. No robot needs just one leg. And also, I wanted to share my design with anyone who fancies a walking Strandbeest robot.


Update 25 feb 2009: New video demonstrating the first powered test. Maybe that should read overpowered test...

(The ugly green screens are an editing artifact. Imagine beatiful fades.)

command an actuator through wifi
Using a
This describes how to use the GPIO on a wireless router as binary outputs and how to control your electronics from the linux commandline. Software I started out … Read more

Introduce a girl to engineering day

Today, 22 feb 2009, is USA's "National Introduce A Girl To Engineering" Day. This was brought to our attention in the shoutbox:

"Zanthess: Hey everyone forgot to mention. Sunday is USA's national introduce a girl to engineering!"

Now I would love nothing more than to attract more women into the field and towards LMR. So I figured I would pay musical tribute to both women and engineering. But as you all know, I am no maestro.

The Pulse - 2009w08

LMR on the Brain
Sensing the living LMR community since 2008w43.

pivots

 Hi all,

You probably read my blog and know I am working on a design for robot legs inspired by the legs of Theo Jansen's Strandbeest.

Below is a picture of a plywood prototype on its way to become version 6.