Directory:CD Motor

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Summary : Apparatus objective is to mimic the exotic results claimed by Robert Adams, yet in a low cost with ubiquitous materials.

Project background

The CD motor was developed by Tim Harwood over the summer of 2001, and published in the fall. The basic project concept, was to derive apparatus that would mimic the exotic results claimed by Robert Adams, yet with apparatus that was both low cost and widely available. The motor was widely replicated in an Egroup of the period, and while old hard drives became a popular mounting for the CDs, the motor template itself changed little. While Tim has never had any input from Robert Adams himself, it seems fair to say the motor does indeed manifest some of the exotic results such as ambient cooling, long claimed by Robert Adams.

Design concept

Where the CD motor differed from previous pulse motor designs offered on the internet, lay in the requirements of an entirely novel theory of operation proposed for the motor. Tim's theory was conceived after a study of the (then forgotten) Aspden patent for the Adams motor. Tim's theory stated that the rotor current induction in the stator windings, combined with specific rotor / stator geometry, created a resultant stator zone asymmetry, that triggered an exotic electromagnetic event from the rotor pms. The details of what this event might be, was left to experimental determination, but that concept, was the basis of the device development.

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Stator zone event

The graphic illustrates how a highly specific mechanical layout, combined with a carefully timed circuit switch closure event, in fact enables us to draw excess energy from a magnet. The current induced in the circuit upon switch closure by the PM, is 'excess energy' the magnet does not have to return when it leaves the stator zone. It takes less electrical input to demagnetize the stator core, than the kinetic energy the rotor pm gained on approach. This asymmetry is basic classical physics, than can be modeled without any difficulty in standard flux software, and should present no problems or controversy in terms of analysis.

However, when optimized properly in this precise geometrical fashion, the facts of experiment proved that the permanent magnet seeks to restore its field back to default levels. It does this through a brief time negative negative flux impulse from the central part of the PM face. A process so brief in duration, it has been overlooked by conventional science.

The geometry of this impulse / discharge, was subsequently clarified by the Directory:PODcore magnetic schematic - solid state apparatus allows the Adams motor 'magnetic moment' to be isolated, and studied. Magnets in fact have two centripedal negentropy vortex poles connected synchronous spin, located in the dead center of the accepted magnetic poles.

This is the ultimate secret of all free energy technologies, which must cause these ordinarily inactive poles to flare up in some manner. This can be done with any form of electromagnetism - it does not mean exclusively magnets. In fact plasmas and air cored coils will enable much higher field density to be manifested, meaning higher device absolute output.

Motor quirks

It is notable, that using 4 3/4" face magnets sandwiched between 2 CDs forces an approximate 20% duty cycle for the magnets. Duty is one of several areas where the CD motor has specific optimization requirements, not recognised in any conventional engineering text. Duty may be reduced as low as 18%.

It was also found that it was preferable for the surface area of the rotor pms to be roughly 5 times that of the stator core face. The CD motor is therefore based in part upon a rule of 5, differing from other geometries suggested by Robert Adams.

Current draw halves at about 6.8 ohms per stator.

Top speed is 3600 rpm regardless of input - however, there is a way round this which creates a runaway over-unity cascade effect. This is the commercial configuration of the motor Robert Adams pursued in his later years.

The motor also benefits disproportionately compared to conventional technology from crisp commutation methodologies.

Typically the motor is configured for experimentation as an unloaded voltage gain back emf based battery charger.

Counter rotating rotors in correct geometry may manifest weight reduction, as a local null electromagnetic field decouples the apparatus from the gravitational field.

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Voltage harmonics

One of several unexplained quirks of the CD motor, is that constant rotor speed seems to be a function of 9v input voltage harmonics 9v i.e. 18v, 27v, 36v, etc, rather than net energy input, as one would ordinarily expect.

120v and 240v are also key motor harmonics, based upon an apparent linear series of 120v. However, due to the risk of sparking, experimentation beyond 240v is not advised.

These harmonic progressions would appear to apply to all over-unity devices, and form a common framework of underlying negentropy physics.


The motor runs cool ambient or below

Current flows back to the source once main switch is opened

Motor needs several hundreds of rpms to manifest effect

The Adams motor would probably be better described as a pulsed thermoelectric voltage gain generator disc, where the output has a non linear relation to the input energy.

Tim's coupled current theory

The brief in register flux anomaly couples with the supplied stator input current

The electrons once coupled hold this state i.e. can be stored in a capacitor

To achieve this stable coupled state, excess negative flux must be bled

It is this loss of excess coupling, that causes the voltage gain

The voltage gain is a direct conversion of ambient heat

The effect is manifested at the moment of switch closure

The halving of current draw a result of two time polarities being simultaneously present, doubling the effective rate of change of magnetic flux (see maths)

At 6.8 ohms the coupled vector will flow on the surface of conductors in a gaseous fashion.

While not a true phase conjugate wave in the sense it travelled back in time, this hypothetical mixed coupled wave concept publically proposed in 2001, is a distinctive theoretical contribution by Tim Harwood to the literature of possible mechanisms for over-unity physics.

Maths example

This is some very crude maths I put together to try and illustrate two different aspects of the over-unity process:

How magnetic field strength doubles for the same energy

The voltage gain in the system that boosts real current levels

Unless you have the theoretical framework in mind, the 'output' from over-unity devices can be quite baffling, as the doubling of the magnetic field, can easily fool experimenters into thinking they have twice as much energy as is in fact the case. I'm sure this has caused a lot of confusion in the past, when battery charging tests failed to validate o/u claims, and inventors became discouraged, thinking their results mistaken. Loading the output circuit i.e. changing its resistance, can also affect the apparatus tuning, causing a drop in output. There are ways round this.

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General guidelines

Over-unity devices are likely to have characteristics in common with the CD motor, since the underlying framework of physics is always the same, regardless of the actual device. For example:

240v is a good practical input for getting over-unity results. While the physics tends towards higher voltages, the higher the voltage tolerance, typically the worse the current carrying efficiency of the switch, in addition air sparking starts around 300v.

Heavy filtering / regulation on the apparatus power supply input can kill the o/u effect

The effect rapidly decays from the moment of switch closure, hence providing a limit on pulse duration

Device energy gains are easily lost via leakage on the power board circuitry

Back-EMF IS the output (cold current)

Devices will tend to be pulsed DC apparatus

Step charging capacitors may be a methodology for output

Crisp commutation is important

Duty may be under 20%

2.2 kHz is a key frequency (from solid state researches)

Once one starts to grasp the underlying framework of physics behind ALL over-unity effects, then optimising the apparatus becomes greatly simplified, as these characteristics can be integrated into the device from an early stage, rather than having to be physically built, and individually tested.

Practical output

One of the major issues with over-unity devices is obtaining a conventional amp rich AC output, especially since o/u systems have a tendency to be pulsed DC apparatus. In the case of the Adams motor, the main drive shaft can be used as the output converter. That is to say the cold current / back-emf can be used with its voltage gain to recharge the source battery, providing a system that delivers shaft motion until component failure, and then something akin to the Bill Muller 7/8 wheel placed on the end of the shaft, as a separate output device. Thus the output is conventional amp rich AC, while the device itself functions off exotic negentropy voltage gain physics. Because under this system the source battery(s) will be kept permanently topped up, they should last a long time in good condition, further enhancing the practicality of this proposal. Thus an exotic device, in this configuration, will produce a standard AC output.

Advanced configurations

Two counter rotating rotors will be likely to generate an anti-gravity effect.

A low ohm primary, with a 6.8 ohm secondary, will likely see the secondary distil "wattless" energy

In hindsight

A quick literature review of unexplained back-EMF results for rail guns and other high power pulsed devices, quickly reveals a mass of evidence for unexplained excess back EMF output. Instead of ignoring this effect as unexplained experimental errata, mainstream science should have developed apparatus that optimised for the effect, rather than putting in paths to ground to ruin it. The the history of human civilisation would have been quite different, had the engineers not kept trying so hard to remove unexplained excess energy voltage spikes from apparatus.

Over-unity has in fact been in plain sight all along, and since the introduction of the concept of grounding for safety reasons in the 1880s, in fact all major household electrical devices sold today, can be said contain design features specifically to suppress the excess energy spike phenomena when first turned on. I am happy to give these 'basics' away for free, because practical development requires the application of even more methodologies than are documented on this page.

Build instructions

OS:CD Motor


See Talk:Directory:CD Motor

See also

PowerPedia:Adams Motor

Directory:Robert Adams

OS:CD Motor - compiled by Tim Harwood from a previous project undertaken

Directory:PODcore - Encyclopaedic entry about companion experiment

Talk:Directory:PODcore - Talk Directory entry to discuss experiment


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- Directory







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Category:CD Motor

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