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[troyd1]

I was brainstorming this and what about using cement nails instead of screws? They are tapered and should be able to be bent to conform to the cylinder. I have no time to try this now, but thought I would pass on the idea.

[Freezer]

I cut a small elongated triangle from laminate steel and manually testing with a small nd40. Pull from large side is at least 5 times the pull from pointed side (just a rough guess). There should be no sticky point going from the 4th triangle to the 5th. Can easily slide to middle of triangle, so maybe the attraction of the next triangles large side will be enough. Can anyone Simm?

I kinda had the same idea.  I think cutting triangular pieces of a metal sheet might work in place.  I tried screws around a cylinder and couldn't get it to work.  I used regular 1" drywall screws and hot-glued them to a roll of tape.  I noticed in the video that the screws are not consistent, with the placement being off a bit.  I don't know if that what causing the problem.  I'm not sure if grinding down the edge of the screw will help.  I think the spacing and strength of the magnets will be a crucial factor.

[bastonia]

@ xpenzif, outstanding thought process! congrats!

To those who are brainstorming a reproduction, please remember it's all about timing & sequencing. 

Start slow, with one attractor and magnet to determine how much "pull" you are getting, because each of your materials will react differently with "your" magnet.

I am building a base test bed with only one attractor to learn how this attraction model is working. After that I will adding additional atttractors 1 at a time to test the related pull vs counter pull. 

Thanks for the fun xpenzif

[eavogels]

To those who are brainstorming a reproduction, ...

I'm collecting parts that are most alike the original design as possible. I want to replicate BEFORE I add all modifications since those modifications are always the reason that a so called replication is not working (see other replications on this board).
I just have a question about that HD motor bearing. I feel a slight resistance, probably since that bearing is a little motor. Can I use that bearing as is or did @xpenzif do something to reduce that resistance?

Thanks.
Eric.

[billmehess]

I sure hope I am wrong here but something about this whole device does not seem right to me. Why is it that a verticle column of magnets being attracted to a collection of metal attached to a pvc tube can now suddenly spin. What happed to the stickey spot? It seems to have disappeared.
It was stated that the device ran all night. Would sure love to see it run continously for at least 1-2 minmutes (or more).
I am always an optimist but this one bothers me. I am probably wrong and it does in deed run as stated, but....
Bill

[ChileanOne]

As far as I can see, this engine has much more to do with Steorn's ideas than what looks on the surface.

I doubt that there's gonna be much succes in replication, at least a quick success, unless the materials and magnets used are extra common and widely available. I wonder if Xpensif himself has had luck replicating or scaling it up or down.

I have no reason to not believe Xpensif achieved a reasonable continuous motion device, but I think that if one does not really understand the subjacent mechanism to allow it working, the success in replication is not granted.

Anyway, my congratulations to Xpensif for finding a working configuration. The video proof that many wanted, and many will also deny as fake, has finally been produced.

Please don't dismantle your original setup. If it works, leave it as that. Replication and enhancement are not granted.

[Honk]

I really hope you guys successfully replicates this motor. Very interesting.
The only speculation I have is whether the motor can supply efficient torque in a larger scale.
As you all know, torque times speed equals horsepower.
Ones built and tested you can go for the best configuration aiming great torque and speed.

Good luck.

[Craigy]

Assuming this thing works as advertised, there are many other configurations that would possibly help the construction and balancing of the rotor. Drilling 50 odd holes in a rotor is a sure fire way to at least get one or 2 off center. Turning the device inside out , i.e having those 4 magnets on the rotor with counter wieght (or second array) and a a tube that has the screws or triangles afixed to the inside.
On the same note, having a road made of screws or whatever and the 4 magnets set in the bottom of a toy car would give you a linear motor....
Would like a bit more info, the video for all i know was made with a desk fan nearby, also the poor centering of the rotor add other questions., may i suggest he puts a fish bowl over it in the next video so we know its not windy in this garage..LOL...

[hydrocontrol]

I like that idea.. Fish bowl... 
I am not sure that grinding x number of screws exactly is any worse that drilling x number of holes exactly. I will have to look at the machine shop here. I think we got a 6 inch horizontal mountable rotary table for the Bridgeport mill so I could stick in a chunk of PVC pipe and exactly drill the holes. Still before I sign up for machine shop time I want to see a better video and some more details. Machine shop time cost $$..
Later,
Tom

[Omnibus]

@All,

This should be replicated as soon as possible by as many people as possible. Try to reproduce the device exactly as shown in this video. Developments later. It should be clear that independent verification of this experiment will have importance not less than that of the original demonstration..