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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.
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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Signing UpStep 1Description 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.
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.
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youtubage:
http://www.youtube.com/watch?v=6BrzOKK2exg
http://www.youtube.com/watch?v=_HkLvYnG65Y
Hope that helps!
Richard