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Author Topic: New guy with SMOT questions  (Read 19523 times)

sknoxmn

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  • Posts: 10
Re: New guy with SMOT questions
« Reply #30 on: January 04, 2013, 06:01:23 PM »
For posterity, I took some basic pics of my design build.  Just getting started though so its the base and stand offs (legs) so that I could put bolts through the base in order to hold the brackets that will be holding the magnets.  This allows for some closer/further distance seperation as well as the angle for each magnet and I can also move them up and down to adjust to the track.

I have also laid out some brass rails that I'm building into the track.  I'm hoping to start making some bends in the track this weekend once I get the main ramp track angle figured out.

I'll likely post the pics after I get the main ramp done.

Just figured once its done, and if my suspicions are right, someone will want to see how it was done. Or at least we can add one more failed design to the "How not to do it" database.

-S

Low-Q

  • Hero Member
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  • Posts: 2847
Re: New guy with SMOT questions
« Reply #31 on: January 06, 2013, 12:38:11 AM »
TK,

>>Powered by the weight, OK, it still needs to be reset periodically

Not only the 40Kg weight, also by the fact that this 40Kg weight is a chaos pendulum because of the magnets
glued to the underside of the weight and on to the weight itself. If it was only the weight then the ball will stop in a short
time. But because of the chaos pendulum then the swing of the weight is prolonged a very long time. You only need
a very little power to move the track so that the steel ball will roll. Also the three side pendulums keep the ball speed
down so that you do not "use up" the stored momentum in the 40Kg pendulum too fast. And here is the secret to
this device AS I SEE IT (I may be wrong). The operator moves the tree outher pendulums by hand to start the device.
This will also store energy into the 40Kg large pendulum in the base of the device because the track is connected
to the large pendulum with a gear up mechanism.  The release of the operator hand input is then "used up" in a very
long time because of the gear down from the large pendulum to the track, and also to the fact that a chaos pendulum
with magnets on, will prolong the swing of this pendulum. The three outer pendulums is also used to slow down the
track so that the "operator input" can be "dished" out on a longer time frame. It is my belief that this device is run
by "Mister hand". But is is a beautiful art work.

GL.
I have been at the museum and seen the machine in person. I asked Finsrud to push the ball, he did, but did not have time to really start the machine. When he pushed the ball, the pendulums started to oscillate both by the weight of the ball that arched the track slightly on its way, and the magnets attached to the pendulums and trigged by the ball as it passed by.
The three pendulums are partially connected to the track making sure the arch of the trach is slightly ahead of the ball, making the ball rolling downhill all the time.


When it comes to the center pendulum, I have no clue. If it is a chaos pendulum, it is not visible from the outside of the machine. It appeared to me that the whole system was resting on the big spring at the top together with a big lead piece.


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