TD replications

[Cairun]

Great Alex

Maybe all I'll do is put the 2 slides together to test the results using the 6" ceramic magnets and wait to see your mechanical design.

Thanks for staying on it.

Luc

Luc,


That sounds good.  I will try to get the mechanical design out as soon as I can.
But, I will be working 72 hours work weeks so it might take a while since I will have little spare time.


Have you tried to line up multiple output magnets(your cascade idea)to increase output stroke?
If that increases output stroke without dramatically increasing inpu work, then I would like to incorporate that into my design.


Regards,
Alex

[gotoluc]

Luc,

That sounds good.  I will try to get the mechanical design out as soon as I can.
But, I will be working 72 hours work weeks so it might take a while since I will have little spare time.

Have you tried to line up multiple output magnets(your cascade idea)to increase output stroke?
If that increases output stroke without dramatically increasing inpu work, then I would like to incorporate that into my design.

Regards,
Alex

Hi Alex,

Just an hour ago I came up with a new simple design that will give us more test data on the performance of a 6 inch output stoke multiplied 4 times.
It's simple enough that I should be able to build it and have it ready to test in 2 to 3 days.
From those test results we should be able to decide the direction we want to take.
So just stay focused on your work as there's nothing to do till then.

Thanks

Luc

[Cairun]

Hi Alex,

Just an hour ago I came up with a new simple design that will give us more test data on the performance of a 6 inch output stoke multiplied 4 times.
It's simple enough that I should be able to build it and have it ready to test in 2 to 3 days.
From those test results we should be able to decide the direction we want to take.
So just stay focused on your work as there's nothing to do till then.

Thanks

Luc

Luc,

A design with a 6 in output stroke and 4x the force?
That sounds exciting!
I will pause on the design on my part for now, then.
I look forward to the result of your tests.

Regards,
Alex

[Floor]

Below are some png files / drawings that illustrate the alignments / actions of
Luc's "mechanical magnet torque amplifier".

                    please find the attached

CascadeStageiMatching 1.png file  and the
CascadeStageiMatching 2.png file

                      regards
                           floor

[Floor]

Notes

1.
I have not (above) illustrated all details of the magnet configurations.
Luc's last video measured a specific arrangement.. which may be /
probably is actually some what different than the (2) above illustrations.
Those illustrations are to give the (in general) of that configuration.

2. a device utilizing large force over a short distance.... can have excessive
energy wasted... due to small amounts of slack / play / slop at the junctions
of its mechanical / moving parts.

3. Translating a     large force / short stroke     into a     long stroke / lower force
before any one way clutch (which will have play before it engages) will
be more efficient than the other way around.

4.  There is no energy lost in the trading of greater force at less distance for
less force but greater distance... e.g. using a large diameter output pulley.
(above illustrations) 

5. The diameter of the round gear beneath the rack gear (above illustrations)
should cause it to rotate by 90 degrees during the magnet stroke.

5. The eccentric pulley (illustrated above) anticipates only a 90 degree rotation.

6. that output pulley might as well be eccentric ..... even if out put force is
MOSTLY constant over the distance traveled.... but not if output force is
very constant over the entire distance traveled .

               best wishes
                    floor