TD replications

[gotoluc]

Hi Alex (cairun)


Did you receive my message?


Please reply


Luc

[Cairun]

Hi all,


This is the conceptual design of the "stop and go" mechanism designed for Luc's version of Floor's Twist Drive idea specifically for use with a continuous rotation setup.
As you can see the output gear stops and stays in position for a brief moment, but the planetary gear rotates continuously(it is attached to the input gear which means the input gear is in continuous rotation).  I still need to try and figure out the mathematical relationship.  The 2 attached images show the front view and back view of the mechanism as well as labeling for the individual components.
The following link shows the mechanism in motion:
https://www.youtube.com/watch?v=-lqlbY4v38s&feature=youtu.be


Imagine 2 bicycle wheels with the input magnets mounted on the rim of one and the output magnets mounted on the rim of the other bicycle wheel. 
Each wheel connected to the output gear of 2 separate "stop and go" mechanisms.  Set the wheels at 90 deg from each other. 
Couple the input gears of both mechanisms(have to time it exactly right) via gears, belts, U-joint linkages etc. 
Mount a flywheel to the input gear to preserve any excess momentum. 
And the result should be a self runner.
This mechanism should capture all momentum and not waste any.  Even the braking of the wheels(due to stop and move motion) should transfer into usable momentum.


As for the linear reciprocating setup, I will draw something up to show the "track follower" mechanism that I've mentioned, later on.


Regards,
Alex

[Floor]

@GotoLuc/ Cairun

Fantastic work !

@ All readers
Some observations / features.....
To assist one in understanding the magnet interplay.

The force to slide the input magnet is almost completely neutralized by the
balance between attraction / repulsion ..... when the input magnet's
line of travel is along the center of the face of the output magnet.

That center  is the distance to the edges of the output magnet's face,
as measured at a right angle to the center line of the input magnets travel.
That center line from pole to pole of the input magnet is square to the
center line from pole to poles of the output magnet...in two planes.
and also...The faces of the two magnets are square to one another in all planes.
...
Note...The greater the distance from those edges of the face of the output magnet
to its center.....the easier it is to come to a zero sliding input force  (by balance). e.g The
broader the face of the input magnet...the easier it is to arrive at that force balance.
(A less perfect travel path / alignment is needed by the input magnet)

When input motion is along the center of the output magnet face
.... this changes both the input and the output work... as compared to
when input is made near to the edge of the output magnet.   
I assume this also changes the final or over all, work in   to   work out ratio ?.   

If the input magnet's travel is near to the edge of the face of the output
magnet.... the input force and work,  is increased.
But also the output disproportionately increases ?
..............................................
In Luc's current design...

During both, the input stroke and the reset stroke, there is a mutual interaction
between the output magnet (A) and the input / reset magnets
as a combined field (B).  Th

The nature of that relation ship is affected by which position of the output magnet
is in...e.g. cocked or fired.  These relationships affect the input and reset strokes.

More on that.... later / maybe.
..........................................
Note... Use of the phrase "pumping action" in regard to the input magnet, would
be some what misleading... as there is a     motion    then     hold position    action
to its motion.               Please find the two video links below.      regards ... floor

http://www.dailymotion.com/video/x5d7hdv_lucs-1_tech

hlttp://www.dailymotion.com/video/x5d7ip9_lucs-2_tech

[gotoluc]

Hi Alex,


Thanks for sharing your very interesting mechanical gear timing system.
I'm always amazed as just about any timing and motion can be accomplished with gears.
Glad your here as you're a great asset to the research.


Regards


Luc

[gotoluc]

Thanks floor for your new test details[/size] and[/size] video demos


Regards


Luc