Instructables

Fischertechnik Robot Lock Picker

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.

LINKS:
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!
http://neil.fraser.name/hardware/locraker/code.txt
(This link was not working when I checked).

Note: I recommend Michael Sameks ft Designer to create CAD images of fischertechnik models.
 
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Step 1: Description of Robot

lockcracker_2.jpg
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.

AmonRa10 months ago
Is the program you used something you could share?
milsorgen4 years ago
 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.
ftking_83702 (author)  chuck norris4 years ago
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. ;)

youtubage:
http://www.youtube.com/watch?v=6BrzOKK2exg
http://www.youtube.com/watch?v=_HkLvYnG65Y

Hope that helps!

Richard
the chick is hotttttt
tac.support5 years ago
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.
flymudpie6 years ago
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.
ftking_83702 (author)  flymudpie6 years ago
Howdy. Thanks for the interest. I will post step-by-step instructions and a video as soon as possible. Again, I appreciate the feedback.
joe570056 years ago
More detail would be nice, or at least larger pictures.
ftking_83702 (author)  joe570056 years ago
They will come. Just ran out of time for this stage.