Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant

[Omnibus]

Free demo Solid Edge to wm2d http://www.youtube.com/watch?v=XPWdp08vLc4

Thanks @X00013. How can you make this detail have a, say, round opening in wm2d? All I get in wm2d when drawing in SolidEdge this detail with an opening, are two details in wm2d superimposed on each other -- one is the detail you show and the other is a detail with the form of the supposed opening -- and not the desired detail with an opening.

[ruggero]

Omnibus

Is this what we are aiming at?

Just a quick Flash animation of the wheel as proposed by dusty....

ruggero  ;-)

[Omnibus]

Omnibus

Is this what we are aiming at?

Just a quick Flash animation of the wheel as proposed by dusty....

ruggero  ;-)

What do you play this with?

[mondrasek]

Oc,

I did not simulate your ideas for the reasons Hans has already given.  They would fail to run for reasons I can tell without a sim.  But I highly recommend you make the effort to sim them your self for your personal edification.  You can PM me if you want to learn how.

Omni,

WM2D cannot do open areas inside of a closed.  That is why all of cherryman's and others neat slots are always open shapes.  also, in AutoCAD I have to draw using single elements like lines and curves that are not all attached.  As a last step I convert them to a polyline which joins them into one element that WM2D can handle.

You also really need to get over your hang up with WM2D's apparent unrealistic slow downs!   That has absolutely no negative effect on the accuracy of the performance of a sim!  It is 100% dependant on how fast your CPU (and GPU) are.  So if you run a sim on a slow machine it will run slow.  Run the same on a fast machine and it will run fast.  But the interactions and forces calculated are the SAME.  Simulations are not animations.  They are not trying to show you a real time representation.  They are showing you the calculated results as fast as they can.  The speed they play back depends on how complex the sim as well as the accuracy and rendering parameters YOU enter.  A simple sim on a fast machine will run faster than real life just as a complex one or one on a slow machine will run slower.  Just like watching a car crash in slow motion, viewing it slower does not change the outcome.  So use the highest accuracy settings you can (slowing the sim down) to verify results.

Hans has already said this, but I will also emphasize that simulating with ideal conditions is a very valid method.  It is exactly how most simulations are initially run.  This is from many years of experience in industrial automation simulations, at least as many years as they have been able to be simulated with graphical representations.  Once the desired phenomenon is obtained through simple optimized sims, you can add complexity and real world losses to try and mimic a real world build, but usually it is time to move on to the real world build by then anyway.

So far I have not seen one WM2D sim that does not predict real world behavior unless grossly mis-model.  And those should and do usually make you look twice because you see behavior that should not happen.  It stands out that way.  And so you increase accuracy or look for other known sim busting techniques (like replacing solid joints with double pins).  If you cannot fix the unusual behavior this way, you might have something!  That is exactly what we are all looking for, right?  And so you should move on to real world experiments to verify.

M. 

[ruggero]

Omnibus

You play it with Flash Player (free player from Adobe.com)

ruggero  ;-)