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OS:Screw-Magnet Motor

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OS:Screw-Magnet Motor

Open Source Project
Image:Screw Magnet motor by XPenzif 95x95.jpg
BOGUS?No known replications

OS:Screw-Magnet Motor

OS:Screw-Magnet Motor:Latest

OS:Screw-Magnet Motor:Replications

OS:Screw-Magnet Motor:Variations

- There was an error working with the wiki: Code[1]

- Directory:Magnet Motors

Category:Screw-Magnet Motor

The Screw-Magnet Motor Crude Prototype consists of four rows of screws, off-set around a cylinder, which appear to cause the cylinder to spin when a holder of four neodymium magnets is brought close to it.

Status : This project was posted on Oct. 15, 2007. As of Jan. 15, 2010, we know of no successful replications nor validation of the original device. On Jan. 13, 2010, we were given There was an error working with the wiki: Code[1] that suggests fraud.

Official Website


We offered this PESWiki page as a home for reporting this phenomenon and for facilitating open replications and improvements on of this concept. But as of Jan. 13, 2010, nothing ever came of this.

Latest Developments

See OS:Screw-Magnet Motor:Latest

Quote from xpenzif's profile: We are planning a large demonstration to fulfill all of your questions and independent verification requests. The first demonstrations will be held in either Chico, CA or Sacramento, CA on a date and location which will be listed on the website as soon as it is launched.



(2 minutes)

Magnet Motor Prototype - "This is a video of a working free-energy magnet motor I made last month. This was the small-scale prototype for a free-energy magnet motor I am manufacturing. Only time will show that this device is legitimate. The final design is very different and much bigger. This is still the only working device I know of. Feel free to contact me for independent verification." (YouTube Oct. 15, 2007)

video copy

another video copy (AVI)

How it Works

Image:Screw Magnet motor by XPenzif under-side 200.jpg

Quoting from the subtitles in the Oct. 15,2 007 There was an error working with the wiki: Code[2].

"This motor uses magnetic attraction to spin. It is basically a cylinder with flat screws attached to the outside. I mounted this on a hard drive spindle. Four neodymium magnets line up with the four rows of screws. The magnets are attracted to the screws, but are attracted more to the heads than the tail ends. The head of a bottom-row screw will be attracted to the bottom-most magnet. So will the head of the screw above it. The cylinder will turn to compensate this imbalance. The same with the next two rows of screws. The lowest magnet now prefers the head of the next screw rather than the tail of the previous screw because magnets are attracted more to the thicker part of the screw. When I move the magnets close enough, the magnetic attraction makes it spin.

"This device is a very crude rough draft. The screw placement is off, and it doesn't rotate smoothly. This is a quiet, environmentally-safe, free-energy device. On a large scale it could produce useful energy."

Quoting from overunity forum

"The aluminum bracket for the neo magnets is held on by one screw. Its fastened tightly enough not to swing into the screws, but loose enough for me to be able to rotate it by hand.

As for the hard drive spindle, [it] was the most convenient thing I had back then, but now I have several bearings I can use. I've been busy lately but I can a better video made soon(ie to give more angles of the device then even fully disassemble it).

"I noticed too that the audio throughout the video was off by a half second, I don't know why this is."

"The motor in the video was made out of a piece of pvc, the magnets are(I think) Nd45, definitely with poles on the smaller ends.

Screws aren't really necessary, you can build one by cutting washers in half and grinding one side down. Here's a picture of part of a tiny spindle for a desktop toy using the washer design:

Image:Brokenspindlelt3 500.jpg

This design makes it easy to adjust the angles the washers relative to each other less change in angle=more torque, more change in angle=more speed, less torque(this can also be accomplished to a degree by changing the magnet arm angle).

The above design uses a lot more magnets. I recommend a shaft made from a non-ferromagnetic bolt."

"I am planning a large demonstration so that I can take care of all of these verification requests at one time. The demonstration will be held in either Chico, CA or Sacramento, CA on a date which will be listed on the website as soon as it is launched. At this meeting hopefully all of your questions will be answered. Thank you, and I appreciate your support,"


On the Overunity forum, user "zero" notes the proximity proportions of the screws.,3482.msg55304.html#msg55304


"I believe the device in this video used nd45 bar magnets, poles on the small ends."

"I think the screws were 3/4in. Honestly screws were a bad idea and took a lot of work flattening, you can probably find something better than screws."

"The motor in the video was made out of a piece of pvc.",3482.msg54965.html#msg54965

Image:Ground screw illustration 150.jpg

On Oct. 19, 2007, Eric Vogels writes

I [ground] a screw. I held one against my grinding wheel and I [ground] a bit of the whole side of the screw, not only the head. Now the part of the screw that is left, fits very well on the round PVC. I tried to make a photo but I cannot zoom in so I made this drawing to show what I mean.


Q. How long have you gotten it to spin?

: A. I've left this one going all night, eventually the mounting screws need to be tightened since its mounted on fiber board.

Q. Why don't you mount one or two more magnet rows spaced around the cylinder and get some speed cookin'.

: A. I eventually did that.

Q. How is your new device coming along?

: A. Yes you will have a much more efficient, streamlined motor very soon.

Q. What's the catch?

: A. Magnets depolarizing is probably what will eventually happen.

Q. If the screws are iron or mixed metal, why wouldn't they become saturated after a few turns, and then stop? Have done something like this but had this problem.

: A. It takes a lot of work to polarize a piece of iron, a lot more than is going on here. The only way I've ever been able to noticeably polarize iron is by holding it to a magnet and hitting the iron with a hammer, helping rearrange the iron's structure.

Q. Can I buy one?

: A. Yes I have a smaller one I can sell you, pm me.

Q. To make a video like this, one could use a fan to make the cylinder rotate, and then the audio could be replaced to eliminate the fan noise (this would also explain the 1/2 second delay in audio). How can we rest assured that there is no hair dryer nearby?

: A. The abrupt speeding up and slowing down of the rotor in the video are not consistent with the action of a nearby fan, but are indicative of magnetic action.


Unit Purchased from xpenzif

The following appeared in the comments of the video at YouTube:

kossxf [Oct. 17]: Can I buy this from you?

xpenzif [Oct. 17]: Yes I have a smaller one I can sell you, pm me.

kossxf [Oct. 22]: I have one of his devices. Its supposed to be mounted on a stepper motor in a way that lines up its push/pull with the screw alignment. It's like two systems balancing out each other. he doesnt mention it in his video.

klicUK [Oct. 22]: does it work?

kossxf [Oct. 22]: Yes it works fairly well.

niente [Nov. 2]: Could you please publish a video of the working device you bought from xpenzif?

kossxf [Nov. 6]: I can verify this information. I still have this device and it still works and the magnets are still polarized. I brought it to my college's science department earlier today, and they spent their whole class time in awe, and nobody could provide answer as to why this doesn't violate CoE other than the magnets depolarizing over time. I will post more on this if they give me any more hypotheses. I can also get someone in the department with a video camera to make a video.

niente [Nov. 8]: Thank you for answering me. I think that it is very important to have asap a clear video showing the motor running by itself for at least 2-3 minutes, and also high resolution photos and details of this device (before it disappears forever, as it usually happens). So please shoot this video before it's too late! We'll be VERY grateful to you. Thank you very much for all your efforts! -)

The following are PMs between niente and kossxf:

niente [Nov. 5 2007]: Hi, I'd like to know if xpenzif motor you bought is self-running or not. Could you please post a video of the motor running for at least 2 mins? Thank you.

kossxf [Nov. 5 2007]: Yes it self-runs, i'll post a vid as soon as I can get access to a video camera. I brought it to my college's science department and I am sure I can get them to make a video of it.

niente [Jan. 21 2008]: Hi, do you have any news? Have you found a video camera to document the self-running motor? I'd really like to see it :-) Kind regards -)

kossxf [Jan. 22 2008]: Yeah ive posted a video like three times and its been flagged and removed.


See OS:Screw-Magnet Motor:Variations - Moved to separate index page Oct. 21, 2007 to streamline this project home page.


See There was an error working with the wiki: Code[3].

Image:CLaNZeR replica of screw-magnet motor with magnets 300.jpg
Image:Eric vogels replica of screw-magnet motor 250.jpg
Image:Wayne replic screw-magnet motor 250.jpg
Image:Freezer replica of screw-magnet motor 250.jpg
Image:MT replic screw-magnet motor 250.jpg
Semi-Success (sampling)

On Oct. 20, 2007, Bossnik wrote:

I have had marginal success replicating this device. I have flattened all screws and positioned them perfectly. I have gotten over 360 degrees of rotation(which I feel is very significant!) I am using an old stepper motor for a mount, but a smoother bearing might do the trick, UNLESS xpenzif's design incorporates the small bits of attraction and repulsion that you notice in a stepper motor when you try to spin it manually. Maybe he staggered the screws to line up somehow with that effect. I PM'd him asking about this and I'll post his response, this could be a key piece of the puzzle.

See OS:Screw-Magnet Motor:Replications


Diagram illustrating the push/pull of a stepper motor when spun manually. The pull(green areas) should be located above the tail-end of a row of screws to help disconnect the tail ends and reconnect the magnets to the heads of the next row. Timing is a critical part of this design.

Profile: Alleged Inventor: Xpenzif =

Comments / Forum

See Talk:OS:Screw-Magnet Motor

Working Attraction Magnet Motor on Youtube!? - 4 rows of screws lengthwise on a cylinder, rotating in attraction to 4 magnets outside the cylinder ( Oct. 16, 2007)

Includes input from the inventor, xpenzif

"This is probably the breakthrough in permanent magnet motors we all have been looking for." - see comments posted there, including xpenzif responses.

Rebuff from Cal State Univ. Physic Dept.

On Jan. 14, 2010, John Warren gave Congress:Founder:Sterling D. Allan permission to post the following:

From: john Warren

To: sterlingda

Sent: Wednesday, January 13, 2010 8:16 PM

Subject: screw magnet motor

Mr Allan,

I've written you a few times in regards to magnetic motors.. We corresponded several several times during the mylow fiasco. Anyway, I'm still hard at work trying to develop my own magnetic motor, and have been following up with other people who may or may not have experienced some mild success in their own endeavors.

Anyway. I decided to look into the screw magnet motor that is featured on your site to see if I could verify the results shown in the short youtube video. I was curious if the principle worked, as it's similar the what Mike Brady did in the Perendev design.

Since the person who supposedly build the original motor was supposed to have sold it to youtube user: Kossfx. I wrote him and asked where the motor was and if I could see more videos of it or purchase it. Here are the two correspondences he sent me:

: "I don't own it anymore but anyone can go see it at csu chico's physics dept." kossxf

: "Yes.. California state university chico has the one that was given to me. xpenzif said it was perpetual motion when really its just a worthless elaborate way to depolarize a magnet." kossxf

So, I'm curious, does anyone ever bother to check up on these guys, or do they just take them at their word? I contacted the California State University of Chico, and talked to two different people in the physics department that had never seen or heard of this motor. Here is some of the correspondence the I received from one of the professors at Cal State:

: From: Eric Ayars"

: To: "john"

: Someone BOUGHT one of these? LOL!

: I've been in this department for seven years, now, and have never seen it. I would have seen it if it'd been here, it's just the kind of thing that we'd all pass around and laugh about. It's certainly not "on display" here! I don't know who "kossxf" is or what he's trying to pull, but if you can get his name I can determine if he was really a student here.

: -ea

: From: Eric Ayars"

: To: "john"

: Looking further at this site,, it appears that "kossxf" is in on the scam rather than merely being a victim of the scam. He makes some claims in the comments section ("Yes it works fairly well", "I can verify this information", etc) that indicate deliberate complicity.

: Normally I just laugh off cranks/frauds/etc —we get them regularly in any physics department— but this one is besmirching the name of my university, and that pisses me off.

: -ea

This is probably old news, but I'm just providing the information for you in case you would like to update the information on your site. Since your page on the screw magnet motor has a section where youtube user kossxf claims to have taken this motor in to the physics department at his college and let the students and professors examine it, it's only fair that one of the actual professors there has a chance to refute this claim. Just my opinion.

In the mean time, I'll keep pushing forward and working toward building a real magnetic motor. Keep doing what you do. Your work means a lot to all of us out here striving toward the dream of a better tomorrow.

Do great things!

John [Warren]


Directory:Perendev Power Developments Pty (Ltd)

Image:Jeff Lacroix magnet motor video still 95x95.jpg

Directory:Perendev:Jeffery Lacroix - Jeffery Lacroix came up with an idea for a magnet motor in 2004, then in 2006 he saw that Mike Brady's Perendev motor integrates the essential design, minus some particulars which Jeffery has recently implemented in a working prototype. (YouTube March 04, 2007)

Contact - Inventor's own profile page at YouTube, with email link.

Working Attraction Magnet Motor on Youtube!? - Includes input from the inventor, xpenzif. (

See also


Directory:Magnet Motors

News:Magnet Motors

Directory:All-Magnet Motors:Theory

PowerPedia:Magnetic motor - encyclopedic entry

Directory:Linear Magnet Accelerators




LEADING (including legendary status)

Directory:Muammer Yildiz Magnet Motor

Directory:Michael MacInnes' Magnet Motor

Directory:Torian Magnet Motor

Directory:Magnetic Motors:Howard Johnson

OS:Magnetic Motors:HJ

PowerPedia:Howard Johnson

Directory:Steorn Free Energy

Directory:Shinyeon Energy Research Center


Directory:Disturbed Self-Compensating Symmetry (Terawatt Research)

Directory: Mechanical Opener for V-Gate Magnet Motor

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- News:Open Source

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