How to create a programmable fischertechnik robotic lock picker!

I play with different educational manipulatives for a living. (Visit www.weirdrichard.com). Over the years I have built many robots!

I recently came across a great description of a device that would run through all the different possible combinations for a Master Combination Lock. Having a number of these locks without a combination, I thought this would be a great robotic project for this competition.

Unfortunately, I have not had the opportunity to render the step-by-step directions, so for now you will have to be content with some digital photographs.

UPDATE: I have posted pictures of an updated model using the PCS BRAIN.

A great analysis on finding a Master Combination Lock combination: http://www.jimloy.com/math/combo.htm

I want to cite Neil Fraser's locraker as the source of inspiration!
(This link was not working when I checked).

Note: I recommend Michael Sameks ft Designer to create CAD images of fischertechnik models.

Step 1: Description of Robot

According to Jim Loy, a generic dial lock has a certain amount of slop in the combination. The combination can be discovered by trying every combination in pattern in about 200 minutes. (In his test, he solved a lock in about an hour. In Neil's project, it took about 30 minutes.).

In my first version of the Lock Picker, I used a pile of fischertechnik elements including two 9 v motors, a PCS Programmable Brick with the PCS Robotics Contoller, and a simple touch sensor.

Is the program you used something you could share?
 Top goal!
I do congradulate you on creating this device, ftking_83702. However, this is not an instructable. For example, If I may, "How to create a programmable fischertechnik robotic lock picker!"-you "Unfortunately, I have not had the opportunity to render the step-by-step directions..."-you, nine lines later. I understand what it is like to have no free time, however, if you are going to make an instructable, then make an instructable. I am not trying to be a mordant jerk, I'm just offering you some critisizm so that the next instructables you make will be better than this.
Howdy, no problem. I was getting this one online for a contest. In the time since I posted this, I have documented the model in CAD. Now I need to find the time to post here. ;<sup>)</sup><br/><br/>youtubage: <br/><a rel="nofollow" href="http://www.youtube.com/watch?v=6BrzOKK2exg">http://www.youtube.com/watch?v=6BrzOKK2exg</a><br/><a rel="nofollow" href="http://www.youtube.com/watch?v=_HkLvYnG65Y">http://www.youtube.com/watch?v=_HkLvYnG65Y</a><br/><br/>Hope that helps!<br/><br/>Richard<br/>
the chick is hotttttt
I would save the time and open a can beverage. While you are drinking your favorite drink, search YouTube and see how to cut the can down and use it as a lock pick. This trick works great and I showed my son, who now uses it at school and changes the locks on his shooting club's team mates lockers. Revenge is sweet sorrow.
But that's not a robot. I like robots.
Im sorry but this tells me nothing about how to build it just that you can find a combo in 200 minutes and u like Morshauen. Please add the part where you tell us how to actually make it. I want to know.
Howdy. Thanks for the interest. I will post step-by-step instructions and a video as soon as possible. Again, I appreciate the feedback.
More detail would be nice, or at least larger pictures.
They will come. Just ran out of time for this stage.

About This Instructable


16 favorites


More by ftking_83702: Developer Workspace CAMLU 2010 August's Human Powered Robot
Add instructable to: