Author Topic: Pulse Motors- Your building them wrong. (Read 7481 times)

dom444 · « **Reply #30 on:** September 01, 2023, 02:51:52 AM »

Just came across your thread Tinman good work, I am currently working on my own pulse motor i also want to share as an open source project, It has one thing in common with your design, what you refer to as torque plates I am using as drive plates look at Mr Luling Magnet Motor and a new principal i call balanced field rotor where one drive plate is being pulled by a permanent magnet and the opposing plate is being held by equal force of another magnet the pulses i use are only to break the balance and let the rotor move to its next position. will show more when its all proven and video made.

tinman · « **Reply #31 on:** September 01, 2023, 03:07:24 AM »

Quote from: dom444 on September 01, 2023, 02:51:52 AM

Just came across your thread Tinman good work, I am currently working on my own pulse motor i also want to share as an open source project, It has one thing in common with your design, what you refer to as torque plates I am using as drive plates look at Mr Luling Magnet Motor and a new principal i call balanced field rotor where one drive plate is being pulled by a permanent magnet and the opposing plate is being held by equal force of another magnet the pulses i use are only to break the balance and let the rotor move to its next position. will show more when its all proven and video made.

Hi Dom.

Sounds good.
Let us know when you have the thread up and running, although i would probably see it anyway.

I will go check out the Luling Magnet Motor.
Thanks

tinman · « **Reply #32 on:** September 01, 2023, 03:22:27 AM »

Quote from: floodrod on September 01, 2023, 02:49:09 AM

Ok thanks.

I get these 3d printed rotors moving 3500 RPM with 4 of those 50mm magnets on it. They are heavy infill and pretty thick.

If I got to replace it, I will. But it makes easy testing because I can swap out torque plate brackets easily.

here it is with those bars cut / mounted / and spinning https://www.youtube.com/watch?v=FZ9tGzauVRg

Ok, well you can only try.
Not sure about the magnetic flux though, as with the steel flywheels, the flux can sink into the flywheel it self, and not saturate the torque plates. But it may be ok.

Do you have a coil or two you are going to use ?
I will cover the test required to show how much power you need to supply the coil to gain the same field strength as the PM.

Brad

dom444 · « **Reply #33 on:** September 01, 2023, 03:30:32 AM »

No problem by the way I am a fellow Aus from Melbourne,
here is Fredrich Luling Magnet Motor his use of large heavy iron plates is one of the best ways to convert a permanent magnet into rotational force.

https://www.youtube.com/watch?v=G6cycmBwLb8

floodrod · « **Reply #34 on:** September 01, 2023, 03:30:50 AM »

Quote from: tinman on September 01, 2023, 03:22:27 AM

Ok, well you can only try.
Not sure about the magnetic flux though, as with the steel flywheels, the flux can sink into the flywheel it self, and not saturate the torque plates. But it may be ok.

Do you have a coil or two you are going to use ?
I will cover the test required to show how much power you need to supply the coil to gain the same field strength as the PM.

Brad

Yea, loads of them. I mounted a 24 AWG coil that reads 4.8 Ohms. 500 turns. I watched your video about coil turns, and this will probably need to be tweaked and replaced, but it's a starting point. Only thing is the core material is not ideal.. Soft iron is hard to find around here. But I got good amounts of laminated steel tranfo materials.

Believe it or not, the coil actually mounted darn close to the torque plate. About 1mm spacing or so.

YES- please do tell about that coil test..

MagnaProp · « **Reply #35 on:** September 01, 2023, 06:47:14 AM »

Quote from: tinman on August 31, 2023, 01:25:52 PM

Hi MagnaProp.

First up, that is a great power supply for the price, and would suit your needs.
I have one that is only 5amps max output, and it has done me over the years.
We are working with quite small amounts of power with these pulse motors.

Second-- There is no problem at all with you joining in on the build, as there are many people that can help you out along the way.
When i started 20 odd years ago, i didn't even know what a transistor was lol.

Third--you are not going to need any where near 1k for this build.
I would be surprised if you used more than $50.00, as most of the stuff can be had from scrap.

So yes, please join in, and learn as we go.

Great, thanks for the help and encouragement. I went ahead and purchased that power supply. I tried to find a hanging scale that displays in grams but all I could find are ones for fish or luggage that only display in kg or lb which I'm guessing isn't accurate enough for our use. Anyone with recommendations for an accurate hanging scale that displays in grams and ships to the USA is appreciated.

Here's an image of some wire and magnets I found in a storage bin at home. The big red spool is 32 AWG, 1/2 LB. The big green spool is 23 AWG, 628 Feet, 16oz. More than happy to buy what you recommend if this stuff won't work.

tinman · « **Reply #36 on:** September 01, 2023, 08:15:08 AM »

Quote from: MagnaProp on September 01, 2023, 06:47:14 AM

Great, thanks for the help and encouragement. I went ahead and purchased that power supply. I tried to find a hanging scale that displays in grams but all I could find are ones for fish or luggage that only display in kg or lb which I'm guessing isn't accurate enough for our use. Anyone with recommendations for an accurate hanging scale that displays in grams and ships to the USA is appreciated.

Here's an image of some wire and magnets I found in a storage bin at home. The big red spool is 32 AWG, 1/2 LB. The big green spool is 23 AWG, 628 Feet, 16oz. More than happy to buy what you recommend if this stuff won't work.

My scales only measure in kg or lb, but in the kg range, they go to 3 decimal points. I suspect the ones you are talking about will do the same.

Your 23 awg will be just right, as that is about .57mm. between .5-.6mm is ideal.
Can you give me the diameter of those round neo magnets you have in that lot.
If they are between 8mm and 12mm, they will be fine as well.

Brad

tinman · « **Reply #37 on:** September 01, 2023, 08:19:39 AM »

Quote from: dom444 on September 01, 2023, 03:30:32 AM

No problem by the way I am a fellow Aus from Melbourne,
here is Fredrich Luling Magnet Motor his use of large heavy iron plates is one of the best ways to convert a permanent magnet into rotational force.

https://www.youtube.com/watch?v=G6cycmBwLb8

Great to hear another Aussie here.

Do you have a pic or two of your build so far ?

Brad

Nali2001 · « **Reply #38 on:** September 01, 2023, 10:15:56 AM »

Hi Brad you don't know me yet but I am a long time member. Only not really that active on this forum. Have been active in the field for over 20 years. Ron Pugh and Gyula will vouch for me me if needed. I am interested to join this one. Have 3d printers, lathe and mill ready to go. I know electronics write firmware and do PCB design. Let's do this.

Kind regards,
Steven

dom444 · « **Reply #39 on:** September 01, 2023, 10:45:35 AM »

not yet i am putting together the rotor with 6 drive plates 30 degree spacing, still have to balance it, and have to assemble 2 flynn magnetic assembly's
to drive it, means winding coils trying to find 0.25mm enameled wire in a bulk roll not so easy to find here. unless you want to pay $20 for 100grams.
and have to build a commutator to flip the polarity's on the coils. I have a full bridge circuit run by hall sensors i designed but i want direct contact with the coils so i can run them on as low a voltage as possible fets need at least 12v to turn on, i hope to harvest the back EMF as well as the neutralizing pulses from the back of the flynn assembly's like i said the motor runs on magnets, power is only to flip the magnetic field and cause an imbalance.

here is a flynn assembly working with 1.5v cell https://www.youtube.com/watch?v=r4PWiyN1G7I

tinman · « **Reply #40 on:** September 01, 2023, 12:44:57 PM »

Quote from: Nali2001 on September 01, 2023, 10:15:56 AM

Hi Brad you don't know me yet but I am a long time member. Only not really that active on this forum. Have been active in the field for over 20 years. Ron Pugh and Gyula will vouch for me me if needed. I am interested to join this one. Have 3d printers, lathe and mill ready to go. I know electronics write firmware and do PCB design. Let's do this.

Kind regards,
Steven

Sounds good Steven.
Seems you have all the gear to make a good machine.
You will need a good heavy flywheel, around 200-400mm in diameter.

MagnaProp · « **Reply #41 on:** September 01, 2023, 06:55:04 PM »

Quote from: tinman on September 01, 2023, 08:15:08 AM

...Can you give me the diameter of those round neo magnets you have in that lot...

Thanks for all the info. The round neos are 12.7mm so a little bit on the big side perhaps.

I just ordered a scale that goes to 3 decimal places and a 6 inch long, 12.7mm diameter soft iron rod. I have a dremel tool so I can cut the rod shorter if needed.

Currently searching for something I can purchase to act as the large spinning flywheel rotor part.

panyuming · « **Reply #42 on:** September 02, 2023, 12:24:37 AM »

tinman · « **Reply #43 on:** September 02, 2023, 01:18:43 AM »

Quote from: MagnaProp on September 01, 2023, 06:55:04 PM

Thanks for all the info. The round neos are 12.7mm so a little bit on the big side perhaps.

I just ordered a scale that goes to 3 decimal places and a 6 inch long, 12.7mm diameter soft iron rod. I have a dremel tool so I can cut the rod shorter if needed.

Currently searching for something I can purchase to act as the large spinning flywheel rotor part.

Those neo magnets will do the job just fine.
The idea here is to spend as little as possible, and use what you have lying around.

Brad

tinman · « **Reply #44 on:** September 02, 2023, 01:23:32 AM »

Quote

author=Kapalek link=topic=19546.msg581892#msg581892 date=1693596745

Quote

I would like to join the project however I am not sure If I would be able to keep the necessary quality of my model.
I wish everybody luck with the project.

Just give it a try.
You can only do your best.

Quote

I really think that Inverted realities channel is the best channel on the topic and probably everyone here will agree.

Yea, he seems to know a bit about the topic

Brad

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Author Topic: Pulse Motors- Your building them wrong. (Read 7481 times)

dom444

Re: Pulse Motors- Your building them wrong.

tinman

Re: Pulse Motors- Your building them wrong.

tinman

Re: Pulse Motors- Your building them wrong.

dom444

Re: Pulse Motors- Your building them wrong.

floodrod

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MagnaProp

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tinman

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tinman

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Nali2001

Re: Pulse Motors- Your building them wrong.

dom444

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tinman

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MagnaProp

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panyuming

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tinman

Re: Pulse Motors- Your building them wrong.

tinman

Re: Pulse Motors- Your building them wrong.