Let's Make Robots!


Heya fellas, Found out about this electronic circuit design contest today. Contest is open to all homo-sapiens on earth and has no entry fee for individuals ! Just … Read more

Optimizing the Jansen Linkage


Still tweaking my optimizer for Jansen (Klann) walking linkages. I started posting some of the more promising optimizations at http://boim.com/Jansen/Favorites

Flat, optimized Jansen Linkage


Hi, I am making my first robot and did some research into designs, and decided to try something different. Im essentially making a motorbike LSR. So the back motor is dc- providing the movement and the front is stepper which is mounted directly above the wheel to provided direction. I was wondering what peoples thoughts were.

True Human

Just a thought project (as I never seem to have any time to build the ideas floating around in my head);

I see a lot of wonderful projects built here on LMR, but one thing that always screams to me with humanoid robotic designs is 'x' axis is always considered, but the 'y' axis on robot joints is almost always ignored. Please don't take this as critism, rather a challenge to think about this problem.

Getting Started with 3D Printing

LMR is a great place to work together, learn and build. When you put cool new tools and tech in the hands of the community here, we can make awesome new things! When I first started wanting to build a 3D printer in 2009, there honestly wasn't much documentation out there to learn from  like today, and lots of my questions were left to the Great Google. Here is an attempt to at least collect some info for those starting on the 3D printing path...

Designing the new body for my robot...

The first robot that I have ever made currently has a cardboard body. As one can imagine, cardboard has its limits, both in durability and aestetics..  So the last few weeks I decided to look around for another material... I wanted something that is relatively easy to form and work with and not needing a whole set of new, special, tools... I came across plexiglass as an alternative and my choice was quickly made.

How do you make a two axis pivot?

How would you make a pivot that would allow motion in an arc around a tube of a larger diameter by a tube of a smaller diameter? The pivot must be able to be moved along the larger tube for adjustment.

Some starting ideas:

Sketch to CAD?

I have a paper & pencil sketch of my robotic design and I was wondering if there is anyway to easily create a CAD model by scanning my sketch into the computer. I user Google SketchUp and Alibre Xpress (yeah I'm cheap) and I can't afford anything "more advanced".  If there's anyway to do this, I would love to know, or if you could point me to a tutorial, that would be greatly appreciated.



Suggestions for a Book on Circuit Design

I have a fairly strong background in code development, but I would like to build a stronger knowledge in curcuit design. I can read a datasheet and learn how to hook up a certain component, but when it comes to using a specific component for a use other than it is designed for I lack the knowledge to know when to use a capacitor, flyback diodes, etc.

Schematic design software

I'm not positive this is the right place to post this.  Admins please move it if I'm asking in the wrong place.

The Eyes of Beholders

Many, if not all, bots on LMR are a joy to study. But only few of them are "pleasing to the eyes".

Help Designing Your Robot

As said in sociatyofrobots.com, designing is the most important stage of robot building. I spent no time designing Turpis, and that's most likely why it turned out so bad. However, I'm an awful artist, and I need to find a more efficient way to plan. I've tried my hand at Sketchup, and it is uncooperative with my computers. Are there any easy-to-use free software out there?