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ValeryOchkov24-Ruby IV
24-Ruby IV
Jun 25, 2014 1:26 PM UTC
Question

Two wooden plank in a door frame.

One Problem from PlanetPTC user:

Two wooden plank (200 and 210 cm) be leaned between the two side of a door frame, each one diagonal from the lower corner of one side to the opposite side...

 

 

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(view in My Videos)

3 replies

Werner_E
Werner_E25-Diamond I
25-Diamond I
Jun 25, 2014 6:23 PM UTC

Any idea what family of curves we are seeing here?

Of course there is a difference depending on which side the longer plank is (click the image to animate):

door1_26.gif

door2_26.gif

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ValeryOchkov24-Ruby IVAuthor
24-Ruby IV
Jun 26, 2014 4:20 AM UTC

It is some Mathcad-card-game

Now we can "showing our cards" (to bluff).

My solution:

2stack.png

And what are your "cards"?

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Werner_E
Werner_E25-Diamond I
25-Diamond I
Jun 26, 2014 7:53 AM UTC

No, it sure isn't a game at all, but if you really are interested, here is a screenshot of how I did it. Nevertheless thats the trivial part of the task. The interesting part is to find a closed form of the curve equation or at least be able to determine the class of curves it belongs to. I have no solution to this part so far.

And if you like thos flash videos more, here you are:

http://communities.ptc.com/videos/5079

http://communities.ptc.com/videos/5080

doorframe.png

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