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Author Topic: Fran McCabe (RIP) Gyroscope Demo  (Read 8018 times)

kajunbee

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Re: Fran McCabe (RIP) Gyroscope Demo
« Reply #15 on: April 12, 2021, 02:20:49 PM »
https://youtu.be/hVKz9G3YXiw


A few years back I built a device like in this video. Difference was that I had it mounted to the shaft of a Bldc motor as the generator. At first I used a small tuning knob flywheel which didn’t work very well. I then modified it to be able to mount a bench grinder wheel. I was unable to achieve a constant precession where gyro did not rotate downwards. And this was before ever connecting a load to the generator. If there is any resistance to the precession rate it would rotate downwards. If I forced the precession to speed up with my finger the device will move upwards. Apply enough force and it will rotate straight up like a spinning top. At this point there is no noticeable precession, meaning it will not rotate the generator.

kajunbee

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Re: Fran McCabe (RIP) Gyroscope Demo
« Reply #16 on: April 12, 2021, 07:37:16 PM »
Ok, I see that the witts flywheel is spoked so I’ll share my experience. The spoked flywheel that I had was more like a centrifugal fan. When I placed a small piece of cardboard along the side it would suck the cardboard towards it. Instead of securing a smooth plate to both sides I decided to try something. I placed the plates of aluminum plate on each side of spinning flywheel thinking if I just block the air from being pulled in the resistance would be less. It dropped the amp draw from 1.96 to 1.76 if I remember correctly. Not a huge difference but it did help. To me it’s like blocking the suction of a vacuum cleaner and the motor speeding up. I’m not sure if it would be more beneficial than just securing the plates directly. I got sidetracked with other things and never completed it.

kajunbee

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Re: Fran McCabe (RIP) Gyroscope Demo
« Reply #17 on: April 12, 2021, 07:55:17 PM »
What might be and interesting experiment is placing the plates along side a smooth rotating flywheel to see if there’s a further reduction in drag. Just a thought.

kajunbee

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Re: Fran McCabe (RIP) Gyroscope Demo
« Reply #18 on: April 13, 2021, 04:05:21 AM »
(https://overunity.com/blob:https://overunity.com/ce22d364-be55-4ac7-b60b-eb0075547d22)

kajunbee

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Re: Fran McCabe (RIP) Gyroscope Demo
« Reply #19 on: April 13, 2021, 08:29:05 PM »
Another option for flywheel might be a ceramic skilsaw or mini grinder blade. There very thin and fairly well balanced. They are also rated for fairly high rpm. Figuring  a way to mount them might take a little thought but certainly doable. Maybe and option down the road.

kajunbee

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Re: Fran McCabe (RIP) Gyroscope Demo
« Reply #20 on: June 04, 2021, 09:44:37 PM »
@Magnaprop the first device in this video is like the one in video of post#1. Instead of direct drive motor, this one is belt driven. The motor seems to rotate continuously to me, as opposed to short on/off impulses.I thought from the first video post #1 that the reaction force was in one direction, and that the heavy spring pulled it back before the next impulse. But in this video it seems that it reacts in both directions as it rotates through a complete revolution.
Just search “Fran McCabe (rip)- gyroscopes” on YouTube. I’m having trouble posting the link.
« Last Edit: June 05, 2021, 12:04:02 AM by kajunbee »

MagnaProp

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Re: Fran McCabe (RIP) Gyroscope Demo
« Reply #21 on: June 08, 2021, 10:27:57 AM »
...But in this video it seems that it reacts in both directions as it rotates through a complete revolution...
Thank you for the video info. I was able to find it as you mentioned. Very very interesting. I don't get how he is getting the bidirectional movement from continued rotation in the same direction. I'll have to test that out as that is not what I would expect.