Howard Johnson's Permanent Magnet Motor

Fig. 1: Rendition of a Production Machine


Rotary Design Patent: #US4151431

Linear Track Patent: #US4877983

Linear Gate Patent: #US5402021

Table of Contents:

About This Project

Measuring the Fields

Design Considerations

Supplies & Costs

Coming Soon! - HoJo Mark I: CAD File

Other References:

FreeCAD Software

KJ Magnetics - Get Your Magnets Here!

Creality CR-10S: 3D Printer

Tom Bearden on Howard Johnson

The Secret World of Magnets

J. L. Naudin on Rotary Design

MotionMagnetics YouTube

Coming Soon! - YouTube

Disclaimer: No revenue is generated from this site or its designs ~ only awareness.

About This Project

Fig. 2: Howard Johnson, Inventor

    This project is meant to be a straightforward introduction into magnetic motive research with emphasis on rotary motion. Any serious researcher will be provided with the theoretical notions as well as the practical 3D CAD files which may be printed by many 3D Printers. This project is open-source in nature. There are currently no claims as to the functionality of such designs. The reason is because this researcher has not directly experienced it, as of yet. However, in the spirit of honest research, every effort is being made to validate the claims of Howard Johnson with a fully tunable and replicable build. Skeptism is tolerable and encouraged! It is important that this skeptism is met with experimental effort rather than purely theoretical convention (and inaction). Therefore, opinions of futility are irrelevant and should be discouraged.

Design files will be released in early 2019 - stay tuned!

Measuring the Fields

Fig. 3: Conventional Field Lines

    We are often taught the patterns of magnetic flux, as seen in the image above. Howard Johnson began his research with efforts to map the fields around his magnets in 3D space with a non-interfering probe. He had decided to do this after the epiphany that the iron filings themselves heavily influence the same field they seem to reflect in the pattern. What this means is he avoided contaminating the flux by keeping ferromagnetic materials away during scanning to uncover the "true field". Some of the patterns he measured take on this form:

Fig. 4: The Possibility of Vortices

    His ongoing measurements led him to conclude that the fields had a somewhat different dynamic than he had thought. The emergence of vortices inspired him to develop his own theories regarding flux. An analogy he was fond of using for his motive force designs was a ship using its sail to harness the power of wind.

Design Considerations

    In designing the HoJo Mark I, there have been a few considerations related to the types of variables to be encountered in the tuning process. First of all, you may be wondering why there needs to be tuning at all. The answer primarily comes from the imprecision in the magnetic fields of commonly obtainable magnets. Each ferrite or neodymium bar has its own unique flux that can't be properly accounted for until they are ordered. To this end, it is important that stator-to-stator spacing and armature-to-stator gaps are completely tunable. The process basically is a fine adjustment of each stator sequence to achieve a "low friction" pass to the next sequence. This is to keep from developing the infamous sticky spots where deceleration is prone to occur.

    It has been mentioned by Tom Bearden that Howard's one working model took extensive tuning to achieve a continous rotation. The printable CAD file that is to be released in January or February of 2019 is going to make fine adjustment possible and fairly easy. All the user must do is maintain patience and go through the sequences until full rotation is achieved.

    The stator and armature materials will be fully composed of PLA plastic to avoid ferromagnetic and eddy current inhibition of the rotary motion. The banana/arc magnet will be composed of many small rectangular neodymium magnets with a smaller neo on each end to further concentrate the flux. The stator magnets will be comprised of standard ferrite bar magnets that can be obtained in places like Home Depot. However, by ordering them in bulk online, you will save considerable money.

    Finally, this design requires suitable magnetic shielding to achieve a proper distribution or concentration of magnetic flux. The arc magnet concentrates its own flux upon the concentrated stator flux to gain motive force in one direction.

Supplies & Costs

    To achieve this build, you will need magnets, magnetic shielding, and access to a 3D printer or 3D printing services. A more detailed list of precisely which and how many magnets shall be released at the time the design file is released. In this time, magnetic shielding sources will be scouted out for ease of access. The type of shielding used in the patent is Co-Netic AA Perfection Annealed sheeting. Mu-Metal should also be appropriate to use. In this current economy, this is by far the most expensive component in the build.

    Thank you for taking your time to learn more about this possibility. Best of luck to all of your altruistic endeavors!