Sjack Abeling Gravity Wheel and the Worlds first Weight Power Plant

[mondrasek]

But i will try to think of rescaling..  The strange thing is that i design in .mm , so somewhere in the conversion from Rhino to DXF there must be an upscaling..

Actually, Rhino just uses the common drafting base unit of 1 being 1 mm.  WM2D uses the base unit of physics of 1 being 1 meter.  No units are passed between the two programs, just the value 1.  They both assign their own units.  Been a problem for CAD guys for years, but mostly between 1 being 1mm and 1 being 1 inch.

My workflow does'n t like scaling. I like the design in Rhino to be an exact copy of the Design in WM2D, so i can adjust or add easaly and quickly new parts.

It sucks!  Making all of your desired changes in CAD, scaling, and then importing takes patience and practice.  If you export out of WM2D to transfer changes from there back to CAD you may loose precision (I did going to ACAD).

I keep one master CAD file.  When I make a change, I save the whole, and then erase everything but the changes, and save again as a temp file.  I then import just the temp file items into WM2D.  If I make a change in WM2D that I want to keep I export,  and use that file as a reference to update my master CAD, but I always redraw in CAD, not just accept the WM2D geometry as part of the CAD.

You can always scale your Rhino back up and down by .001 and 1000 as many times as you want and it does not degrade the precision.  Just another step or three.

I'm sure others have better ways and you will of course find your own.

M.

[0c]

The ball will not drop straight down if released at the 6 o'clock position.  At that position it is traveling parallel to the surface of the Earth (same direction as an arrow from 3 to 9 o'clock).  Release it there and it will now be able to be acted on by the acceleration of gravity and so its path will arc towards Earth.  If you speed up the wheel to 200 RPM you will be traveling twice as fast in the horizontal when you release at 6 o'clock.  So it will travel further out away from the wheel as it arcs downward due to gravity.

If you want the ball on a clockwise wheel to drop straight down, you must release it at 3 o'clock.  If it does go straight down it would also indicate that the Centrifugal Force disappeared the moment the ball was released as well.  Nice experiment for that purpose I suppose.

M.

I didn't claim the ball would drop straight down. Does the ball exit with enough energy that it can be returned to the top of the wheel? If so we can constantly have weights on one side of the wheel and not on the other side. See how that ball exits at 100 RPM. Can it be returned to the top through some arrangement of chutes? or spings? or teeter totters? How about at 200 RPM?

Just humor me.

[fletcher]

Correct. That fixes the problem. I tried it on the several questionable designs. What is this "optimized" anyway? Funny, this change seemed to uncheck the "Prevent the model from running faster than real-time" in Preferences.

Can't help you there - just a novice user - some suggestions about other concerns though - I select 4 decimal places in >view>numbers & units - any part not essential to the operation or investigation I make transparent [>window>appearance>pattern>no] & in properties give it a tiny value of 0.0001 units [whatever units you are using] - then you can go to >view>system center of mass [make other things transparent to see if required] - then using the zoom function you can watch a simplified version of how the constituent parts that have mass & inertia interact & affect the torque etc, & of course, where the system center of mass is in relation to the center of rotation at all times - disregard if this is redundant information.

Keeps things simple, clean & tidy, IMO.

[Omnibus]

Can't help you there - just a novice user - some suggestions about other concerns though - I select 4 decimal places in >view>numbers & units - any part not essential to the operation or investigation I make transparent [>window>appearance>pattern>no] & in properties give it a tiny value of 0.0001 units [whatever units you are using] - then you can go to >view>system center of mass [make other things transparent to see if required] - then using the zoom function you can watch a simplified version of how the constituent parts that have mass & inertia interact & affect the torque etc, & of course, where the system center of mass is in relation to the center of rotation at all times - disregard if this is redundant information.

Keeps things simple, clean & tidy, IMO.

Thanks a lot. Very useful suggestions. As for "novice user", you can't beat me to that. It's my third or fourth day using this. lol.

Now, having a slight idea as to the workings of this useful (?) engineering tool wm2d, I'm finding that the greatest challenge is the drawing of the intricate parts of Abeling's design. Well, trying to do it in AutoCAD but, boy, that ain't easy for someone like me who has never worked with it. It isn't at all straightforward, let alone intuitive. And you have to click three times more for the same thing you'd do in other drawing programs with ease. Well, I guess the usefulness of the dxf files for a direct CNC manufacturing is the price for studying this cumbersome thing (or the other way round ... whatever).

[gyulasun]

Hans,

Do you have any of Constantinesco's patents. Would be interesting to take a look.

Omnibus,

I recall my earlier reply in another thread where Constantinesco's patents granted before 1922-23 era were also asked for, here it is:

http://www.overunity.com/index.php?topic=3354.msg165174#msg165174

And here is a link to all his patents available at the European Patent Office:

http://v3.espacenet.com/searchResults?locale=en_EP&ST=quick&IA=Constantinesco&compact=false&DB=EPODOC

He had over 300 different patents,  maybe Hans could be of help on pointing to some,  where either the Milkovic setup or the wheel discussed here are in same way involved.  I simply have no time to wade through the 300 patents.

rgds, Gyula