Integrating Servo Motors with fischertechnik (Robot Theme)

How to integrate an INEX Servo with fischertechnik elements!

I play with different educational manipulatives for a living. (Visit www.weirdrichard.com). I am using servo motors with various ft robotic projects. My boss asked me to demonstrate different ways to integrate an INEX servo motor with fischertechnik components.

One obvious solution would be to drill a hole in the servo's X-horn radial arm. With a larger hole, you could easily integrate elements with axles, studs, or rivets.

Examples at ftcommunity.com:
http://www.ftcommunity.de/details.php?image_id=9628

I decided for this project, I could not alter (no cutting or drilling) the servo or its X-horn arm.

There are two sets of issues. Integrating the servo into a frame, and transmitting turning action to a drive train.

Step 1 Integrating the Servo into a Frame

This is a fairly straight forward process. I could pressure fit the entire servo into a frame of ft elements. However, a more robust frame would use the axle holes located on each side of the motor.

(I have different servos laying around my office, and the holes seem to be ubiquitous in a variety of models).

I was able to fix the servo motor using assemblies of:
*Clip Axles/Clip 5s/Building Block 7.5s.
*Clip Axle 20s/Building Block 7.5s.
*Axle with Clips/Building Block 7.5s
*Struts and Plugs.

I noticed that the holes on a Parallax servo have an open side. Using this design, I could fix the motor using Rivets.

An example by stefanft:
http://www.ftcommunity.de/details.php?image_id=12752

(Also note: He alters a Cog Wheel to fit on the servo itself).

Comments

[lbaran]

Hey that's a cool way to get servos for fischertech! I wonder, think we are allowed to use them in our robotics challenge?