Building a self looping "SMOT"

[norman6538]

Elecar, that is great. I really like the attraction, escape and track switching movement.

I did not see the magnets so I assume they are underneath. I held mine on the side where I could shift them easily.

Norman

[elecar]

Hi Norman, the magnets are at the side of the ramp. You can see the white nylon spacer standing upright that I am using to adjust the distance of the ramp from the track. I have a simple camera and no tripod so I will try and rig something that can get the full track and magnets in the shots.
If you recall my earlier test video, the magnets are the same arrangement.

[elecar]

Hi Norman,

[elecar]

Quote Libre 

'elecar' make have discovered a way to loop a SMOT a few times by giving the ball some gravitational potential energy to start with , but it will stop once friction bleeds that excess away. Interestingly this would probably work better without the magnet in place.

Quote TK

Exactly

Please watch the following video, and the tests as described below. Then either retract your statement or supply the evidence that you are correct.




When you watch the video you will see clips of 3 tests. please excuse the jerry rigged set up, that is all the C8 magnets I have left after building my prototype. I would have preferred to show test 3 on a longer length of ramp, but I do not have enough spare magnets and I do not have a longer piece of aluminum track as I butchered it all for the track. Test 3 does however show how the ball can reverse under gravity in the magnetic field.

My text from page 2 of this thread.

Test 1:  The ball being released from different positions on the track  2mm - 6mm higher than the lowest point. Note how the ball always makes it to the first 2 marks when rolling under gravity regardless of where it is released from even when traveling around "friction" bend.

Test 2: Magnets in place, this test is the same as test one but with the magnets positioned to draw the ball up the ramp. Note how it makes it all the way to the "hole" no matter where the ball is released from on the same section of track as shown in test 1 Also note the ball ends higher than it starts every time.

Test 3: Magnets in place but positioned to prevent the ball making it to the hole, Note the ball loses its forward momentum and reverses under gravity whilst in the magnetic field. It does this from any position as in test 1 and test 2.


My video from page 2 of this thread.



http://www.youtube.com/watch?v=--3rugO_RMg&feature=youtu.be

[elecar]

The tests carried out in that video clearly show that the 2 experts are wrong in their assumption,

The tests clearly show the ball being released at different points on the track without the magnets in place.

It shows (the 2 red marks) where the ball covers less distance rolling when released from the lowest point without the magnets in place.

With the magnets in place it clearly shows the same test carried out and the ball making the "hole" each time regardless of where it was released.

The video also shows the ball rising and falling in the magnetic field the same distance every time regardless of where the ball is released from.

The video clearly shows that the unit operated much better, in fact there was an obvious gain when the magnets were in place.