Update on Scissor Waves.
Moderator: scott
re: Update on Scissor Waves.
The Three pegged cog. Looks very Klingon to me.
- Attachments
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- Side view.
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- wave view.
re: Update on Scissor Waves.
Too much weight makes it go backwards.
https://www.facebook.com/video/video.ph ... 5589583756
https://www.facebook.com/video/video.ph ... 0982916550
Set to public so you should be able to view them.
https://www.facebook.com/video/video.ph ... 5589583756
https://www.facebook.com/video/video.ph ... 0982916550
Set to public so you should be able to view them.
I could not get the cog in right position to induce enough inertia. The prototype does not have enough weight to each wave when i turned the 3 cog manually. Each wave weight just under 3 pounds, but represents the wave frame not mass. Mass is not included in the prototype. I know from past experience, mass at the end of the wave don't work. So i am simplifying to 3 waves next week. I will be adding lead weights to try to improve the forced rotation and adapt up to include into the 12 wave version.
I know without doubt now, the wave only needs to oscillate 1/2 inch for best results. Any wave that is open, even the hardest one to close at the bottom forces anticlockwise movement. This principle I have never applied to the earlier smaller prototypes as I believed it was the length of oscillation of the wave frame that caused weight displacement to force it to turn.
Using 3 waves a 3 squared with a start number of 6 has a total mass of 90. I am going to take it that's a total of 30 ounces per wave. I'm gonna pivot the lead weight I have, behind the secured large end of the wave. Perhaps add initially elastic representing a spring or I may need to install string to retract the wave with less effort by the levering weighted pivot.
I know without doubt now, the wave only needs to oscillate 1/2 inch for best results. Any wave that is open, even the hardest one to close at the bottom forces anticlockwise movement. This principle I have never applied to the earlier smaller prototypes as I believed it was the length of oscillation of the wave frame that caused weight displacement to force it to turn.
Using 3 waves a 3 squared with a start number of 6 has a total mass of 90. I am going to take it that's a total of 30 ounces per wave. I'm gonna pivot the lead weight I have, behind the secured large end of the wave. Perhaps add initially elastic representing a spring or I may need to install string to retract the wave with less effort by the levering weighted pivot.
re: Update on Scissor Waves.
Square configuration. Looks like a bi-directional version but I need to sort the inertial torque first. The 4 waves pointing into the way it rotates has no effect on the rotation, even when kept closed.
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- Configuration playing.
re: Update on Scissor Waves.
Improved the inertial torque somewhat, the 28 oz (2@8oz+2@6oz) weighted lever forces closed the wave opposite keeping the opening wave from opening. The wave only opens between 3 o'clock and 12 o'clock. I will need more weights or maybe forced to use sugar packets for weight as 12@30oz is 22.5 lb for the 12 wave.
http://www.youtube.com/watch?v=CPcDVfsigkE
http://www.youtube.com/watch?v=CPcDVfsigkE
re: Update on Scissor Waves.
Very funny to see how you fully jump against my intuition!
Indeed!
What would I do in such experiments?
I would use your scissors elements at contrary, with elongation at wider edge, what means, bigger mass at this edge, that you may 'trigger' as wished.
This heavier elongated edge should, under my view, put to 'work' at radians positions to fall near to 12h, while 'condensed' with shorter momentum should be put to rise, near to 6h.
Sorry if I insist with this 1 cent.
Indeed!
What would I do in such experiments?
I would use your scissors elements at contrary, with elongation at wider edge, what means, bigger mass at this edge, that you may 'trigger' as wished.
This heavier elongated edge should, under my view, put to 'work' at radians positions to fall near to 12h, while 'condensed' with shorter momentum should be put to rise, near to 6h.
Sorry if I insist with this 1 cent.
There is - or should I say was, a practical need for the large end to be secured. The small end collapses onto a bigger piece of the wave. On the longer guide versions, collapsing the bigger end to a smaller piece caused a downward strain and prevented swift closure.
However now I know the mechanical wave only needs to oscillate 1/2 inch towards the large end, that throws my old thinking out of the water.
I know from experience the weights don't mean anything in terms of assisting rotation. What is different and does matter is the early full collapse of the wave at any point on its open side.
This is a new revelation for me and it's the first time I am using weight to prevent the wave from opening at about 06:30, where it would normally open. It is also the hardest point to close manually. The weight levers keep the opposite wave closed until about 3 o'clock. The wave is only open from 3 o'clock to 12 o'clock.
I know there is only 2 weights and 4 waves! As soon as the weight is added to the 2 waves without weight it will retard the apparent torque.
The weight additions will be scaled up to the 12 wave version. This should sort out the needed forced torque and show nothing more than there is 360 degrees and 360 ounces in a minimum speed rotating circle.
However now I know the mechanical wave only needs to oscillate 1/2 inch towards the large end, that throws my old thinking out of the water.
I know from experience the weights don't mean anything in terms of assisting rotation. What is different and does matter is the early full collapse of the wave at any point on its open side.
This is a new revelation for me and it's the first time I am using weight to prevent the wave from opening at about 06:30, where it would normally open. It is also the hardest point to close manually. The weight levers keep the opposite wave closed until about 3 o'clock. The wave is only open from 3 o'clock to 12 o'clock.
I know there is only 2 weights and 4 waves! As soon as the weight is added to the 2 waves without weight it will retard the apparent torque.
The weight additions will be scaled up to the 12 wave version. This should sort out the needed forced torque and show nothing more than there is 360 degrees and 360 ounces in a minimum speed rotating circle.
re: Update on Scissor Waves.
First pair with the apparent correct lengths completed. Off to get more supplies tomorrow.
- Attachments
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re: Update on Scissor Waves.
Clip of the provisional 2 weight results. The weights have now been relocated.
The first part shows the top and the enhanced forced 30 degree rotation showing the top mechanism for forced wave closure. The last bit shows the bottom part of the mechanism and the forced wave closure - from the 30 oz weight falling at the top.
http://www.youtube.com/watch?v=mcZNzJwtEYg
The first part shows the top and the enhanced forced 30 degree rotation showing the top mechanism for forced wave closure. The last bit shows the bottom part of the mechanism and the forced wave closure - from the 30 oz weight falling at the top.
http://www.youtube.com/watch?v=mcZNzJwtEYg
re: Update on Scissor Waves.
Initially I claimed it needed a pendulum installed to knock the wave. I know nothing about pendulums so I have simplified with 4 waves and altered the gravity well design. Included in the 12 wave design I will now add a total mass of 360 ounces. Each of the 12 waves will be retracted at the bottom by a mass of 30 oz falling at the top.
This video clip shows the enhanced forced rotation of at least 30 degrees. I need to replace the wood levers with metal ones and am awaiting delivery of 12 purpose made weights before full 12 wave assembly.
http://www.youtube.com/watch?v=3dZJIdq-N08
This video clip shows the enhanced forced rotation of at least 30 degrees. I need to replace the wood levers with metal ones and am awaiting delivery of 12 purpose made weights before full 12 wave assembly.
http://www.youtube.com/watch?v=3dZJIdq-N08