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Old 08-26-2015, 02:10 PM
MadMack MadMack is offline
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Join Date: Apr 2015
Posts: 73
Quote:
Originally Posted by Turion View Post
Are the ramps between the magnets on the stator? If so, I would say you need a large rotor so that there will be space for ramps between magnets on the stator.
That would be correct up to a point. Too large and the rake of the ramp becomes too little, unless additional magnets are used. The design is a balance of diameter, number of magnets, strength and size of the magnets, ramp length arc spacing and thickness.
Quote:
Did you use the same number of magnets as in the Bedini picture on the rotor?
No. The least was 6. The rotors diameter has a direct bearing on the output torque.
Quote:
Do you have magnets on your ramps like Bedini did?
Not exactly like his. The picture you posted shows a ramp and repelling magnet, not the attracting magnet and ramp. You do not want to shunt the magnetic field like his picture shows, on the attracting stator magnets.
Quote:
In the Bedini version the stator has to remain fixed in order for the thing to work properly. You said your ramps pivoted in the middle? Trying to imagine how that would contribute to the movement of the rotor or what advantage a ramp that pivots in the middle gives to the design.
The pivot in my ramps do not contribute any additional force or movement to the rotor. The power developed is provided by the rake of the ramp in relation to the rotor magnet (rate of change over distance or time). If the ramp can pivot in either direction the rake can be altered, thus decreasing the rate of change and throttling down the output. The ramp pivoting is a mechanically operated mechanism, the gas pedal. If the rake of the ramp is reversed it acts as a brake. If the rake is neutral, the motor stops.

We're getting ahead of where we should be focusing our attention right now.
Let's take it slow and focus on the basic 2 pole test rig instead of the complete motor, ok? Everything you need to know in order to build bigger more powerful motors can be learned with this, for a lot less expense. After we get the magnetic balance, or very close to it, then we can move on to the ramp details.

For now, picture this. We have a 2 pole rotor and the attraction is balanced to the repulsion. You can rotate the rotor by hand and feel very little or no cogging. You stick a ramp at one side of the attracting stator magnet. As the attracted rotor magnet comes under the influence of the ramp it accelerates. As it accelerates toward the stator magnet, it also gains inertia. The stator magnet also attracts, but the stator magnets attraction is being neutralized by the repelling magnets at the opposite side of the motor. The rotor inertia carries the rotor magnet fully under and slightly past the attracting stator magnets center line. At this same instant, the rotor magnet at the opposite side, 180 degrees away has traveled slightly past the center line of the repelling stator magnet, which is now doing its job and preventing the attracted rotor magnet from being dragged back under its attracting stator magnet. The rotor is free wheeling at this point. Inertia continues the rotation until the rotor magnets come under the influence of the next set of ramps and the cycle repeats.

Mack
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