Author Topic: My Kundel motor replication with ardiuno (Read 14022 times)

Floor · « **Reply #75 on:** February 11, 2022, 07:28:42 PM »

Thanks.
Keep enjoying.
Regards.

floodrod · « **Reply #76 on:** February 12, 2022, 06:57:21 PM »

Since the center magnet flips by itself 45 degrees every 45 degrees, I hooked up a timing circuit to only power the driving motor for 1/2 rotation. (only during the times when the magnetic fields are working against me, which happens to be the same timing when speed over momentum may be advantageous. ) I also installed 2 small nema 17 steppers as generators to see if I can make it go..

It's difficult to get started but I did manage to make it work. See it in action here- https://www.youtube.com/watch?v=W-N_PuJvWBc

My driving motor is no good for this application because the torque is very low at low speeds and the rotations are not easily controllable. I will need to wait for the Nema 23 stepper, as it should do much better for this application.

The steppers are currently using 2 bridge rectifiers each (one for each coil of the stepper), and the 4 rectifiers are tied in parallel. I am getting 21 volts out unloaded. I did not test load, as my fingers are blistering from starting this thing.

I will report back once I get the Nema 23's in and installed

floodrod · « **Reply #77 on:** April 15, 2022, 07:08:58 PM »

I wanted to give the old Kundel one last ditch effort before I shelf her also along with the Adams.

I used the biggest magnets I could and I made the biggest strongest actuator I could. And it runs... See the final attempt here- https://www.youtube.com/watch?v=mc8l9FLVsTY

My conclusion of the Kundel is as follows:

In every configuration / magnet strength I tried, it lacks torque.. You can get the torque better by spacing the rotors closer to the stator, but it gets VERY difficult to start and bashes around while trying. But even if you close the gap, you will need to pump the input voltage or it won't run.

The whole idea of the center stator magnet working the rotors against each other is a cool concept, but it comes with downfalls. The opposing rotor's flux is always in distance of the stator and works against you to find it's equilibrium. With every stroke, the stator needs to pull away from attraction magnets and push into repulsion magnets, thus constantly straining the actuator with every movement.

As I said, the whole concept is fascinating, but I see no possible way to OU with the Kundel at this juncture in time.. If a magic actuator is discovered that improves efficiency in leaps and bounds I may revisit it. But this wraps up my Kundel experiments for now.

floodrod · « **Reply #78 on:** March 16, 2023, 01:58:22 AM »

I built the original Kundel motor with 2 linear shafts but always wanted to build the Ultimate Kundel Model .
It is Challenging, and I never seen one- not even from Steven himself. I don't think anyone has built one yet.

So I figured out how to design a rotating center tube on a shaft that reciprocates.. And housing / stands to hold it all together.

I needed to match radial bearings with linear bearings that fit precisely, then leave linear stubs to mount the rotating tube to. And seems like the action will work..

The main shaft reciprocates and the outer tube turns.

Magnets will be in the middle of the shaft inside the tube. And 2 stator magnets on the outside of the tube. I plan to do it a little differently and use the blotch-wall of the outside magnets as the zero-point.

Should be a cool build and a nice piece to display when done.

floodrod · « **Reply #79 on:** March 16, 2023, 02:11:37 PM »

Reciprocating magnet stator seems complete. Using (2) 13mm x 20mm x 4mm N45 Arc Segment Magnets on the stator.

The main idea is in the last image. The inner shaft reciprocates and tube rotates. The inner arc magnets find a neutral point right at the blotch wall of the outer magnets. Reciprocate a hair towards the side that repels and the tube flips 180 degrees. Then reciprocate the other way moving a hair past the blotch wall again on the other side, and the tube rotates again the last 180 degrees resetting itself.

Torque is controlled by the length of the reciprocator throw. The longer the throw, the closer to the poles of the outer magnets we get, which increases the torque.

synchro1 · « **Reply #80 on:** March 16, 2023, 07:15:56 PM »

Take a look at the this design. A ceramic diametric from a wash tub motor is on the plunger.

floodrod · « **Reply #81 on:** March 16, 2023, 09:34:13 PM »

Outside magnets have been installed and it now spins by hand when reciprocating the shaft.

Next I mounted the reciprocator connector / stabilizing bar. The inner shaft needs a guided track to prevent it from spinning. It should just reciprocate. Only the tube should spin. Bearings will mount to the threaded rod that will act as smooth stabilizers. I am printing the stabilizing tracks now.

And I will power it with this voice coil actuator. I have been saving it for a project like this..

Should be running soon

synchro1 · « **Reply #82 on:** March 16, 2023, 10:22:58 PM »

Looks fantastic! The speed generates a magnetic vortex that has an inertial effect on the load. We see Kundel demonstrate this with power tools. A phantom flywheel.

floodrod · « **Reply #83 on:** March 16, 2023, 10:42:19 PM »

Quote from: synchro1 on March 16, 2023, 10:22:58 PM

Looks fantastic! The speed generates a magnetic vortex that has an inertial effect on the load. We see Kundel demonstrate this with power tools. A phantom flywheel.

Thanks.. Did you ever get that washtub spool kundel running with a source input?

floodrod · « **Reply #84 on:** March 17, 2023, 03:35:58 AM »

Next update.. Stabilizing rails are installed and working nicely.

This design can make it full revolution with 1 stroke with enough power to reset the reciprocator from 1 throw.

Voice Coil mount will be printing for 12 hours tonight. If all goes well, I should have a working motor to show by tomorrow.

See it make a full revolution and reset itself here- https://www.youtube.com/watch?v=-feSwBPZxkM

synchro1 · « **Reply #85 on:** March 17, 2023, 05:12:36 PM »

Yes. My Kundel is GAP driven. The stroke is out of balance due to the dissimilarities in force and will not speed up.

synchro1 · « **Reply #86 on:** March 17, 2023, 05:47:29 PM »

Here is a video of a GAP oscillator driving a levitating Mendocino shaft. The levitation shaft should drive a Kundel gear.

https://www.youtube.com/watch?v=2VhQq_utlQg

This oscillator is generating a power stroke off the BEMF from the masking pulse and runs for free. The voice coil is a power hog. The set up in the video is running for free and frictionless!

The outrigger magnets on your Kundel barrel may act as levitating actuators and completely free the gear from friction. This addition of yours is a very important innovation and has myriad permutations!

synchro1 · « **Reply #87 on:** March 18, 2023, 03:22:58 AM »

This powerful "Core Attraction neutralization pulse", "H" bridge oscillator would run a Kundel gear for free.

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Author Topic: My Kundel motor replication with ardiuno (Read 14022 times)

Floor

Re: My Kundel motor replication with ardiuno

floodrod

Re: My Kundel motor replication with ardiuno

floodrod

Re: My Kundel motor replication with ardiuno

floodrod

Re: My Kundel motor replication with ardiuno

floodrod

Re: My Kundel motor replication with ardiuno

synchro1

Re: My Kundel motor replication with ardiuno

floodrod

Re: My Kundel motor replication with ardiuno

synchro1

Re: My Kundel motor replication with ardiuno

floodrod

Re: My Kundel motor replication with ardiuno

floodrod

Re: My Kundel motor replication with ardiuno

synchro1

Re: My Kundel motor replication with ardiuno

synchro1

Re: My Kundel motor replication with ardiuno

synchro1

Re: My Kundel motor replication with ardiuno