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Energy > Inexhaustible > Magnetic Motors > Bowman > Open Sourcing > Replications > In Progress > Dax Hamilton Ken Hagemann's Replication of the Bowman Magnetic Motor
Unit-KH/HC-2004-BLTFirst PhotosSterling,
I have attached two pictures that were taken just before installing the magnets.
* * * *
I do not have a picture with magnets installed. I am sure Hugh will get some out for posting after this weekend. As you know, he removed the magnets and sorted them for the optimum match-up within the assembly. Trust me, Unit-KH-1-2004-BLT is in good hands with Hugh. He is doing the most important part of the job right now. I want this unit to be referred to as Unit-KH/HC-2004-BLT.
Thanks,
Ken Hegemann
Magnets Need to be Secured Better; Got Movement Doing Something Differenthttp://groups.yahoo.com/group/PES_BMM/message/494
From: hugh
Campbell
Sent: Wednesday, February 11, 2004 3:23 PM
Subject: Re: No Re: [PES_BMM] Re: Going public, already?
Sterling, I had problems with the magnet mounting glue. The glue was not a permanent type and the magnets started to shift. They would hit each other during rotation. After gaping the magnets about 3 time, I figured out what was happening. I removed all the magnets and then took readings on them. They range from 4.63 to 5.01 kgauss. I plan to match the magnets within 10-20 gauss of each other and then remount them with Devcon 5 minute epoxy. Ken had two sets of magnets and I have only done the readings on the set he had mounted and which I de-mounted. I will take readings on the rest of the magnets tonight and then mount the magnets on a setup utilizing a granite slab to ensure accurate "Z" mounting. This will be done on Friday. That puts me back to where I started except that I don't think I will have any more problems with the magnets shifting. I hope to have some good news next week. I am also not too sure about the timing sequence of the magnets. I tried just holding a magnet and rotating it manually in a circle (with both small rotors removed and actuator in place) and was able to get the motor to sustain operation. When I checked the location of the magnet I was holding to the location of the magnets on the main wheel, it intersected exactly between the magnets and never overlapped the mounted magnets. I had tried for two days to get the motor operating before the glue had started to fail without any success. Now with just a simple test, I am questioning why it was so easy to get it operating manually with a crossover between the rotor magnets vs. the overlap configuration that seems to be very difficult to align. I will look into both methods and report my results back to the group. Hugh See also http://groups.yahoo.com/group/PES_BMM/message/496 * * * * http://groups.yahoo.com/group/PES_BMM/message/497
From: hugh
Campbell
Sent: Wednesday, February 11, 2004 4:43 PM
Subject: RE: [PES_BMM] Campbell reports movement using different config? (Unit
K.H-1-2004-BLT)
Sterling, I will try to send some photos this weekend after I remount the magnets. It should not take too much to repeat what I did. I will ask Ken to send you photos. He took a lot and has them in various stages of construction and complete with magnets. As far as a quick further explanation; My hand was essentially acting as one of the small rotors. The only difference is that the magnet crossover or timing would be 90 degrees out of phase from what I understood. The small rotor magnets would cross over the main rotor exactly between the main rotor magnets. While holding the magnet, I could feel the repelling force sweep the main rotor magnets forward causing the main rotor to turn. It could be that this also works but maybe creates less torque vs. forcing the rotor magnet over main rotor magnet. I am just speculating and will have a better idea of what is happening next week. I just wanted to pass this along as I feel that I had spent a considerable amount of time with the motor adjusting the actuator, Hugh Completed and Balanced
My replication is complete and balanced. As my business is expanding rapidly, I have no time
to work on the motor. I am very excited about the possibilities of the motor working and
want that to happen very soon. I have therefore passed my replication on to the very capable
Hugh Campbell. If this theory works, Hugh has the
expertise to see it through and more importantly, he will document every procedure and report to
the group accordingly. With all confidence, I pass the baton to Hugh and I will be eagerly
watching cheering from the sidelines.
Ken Hegemann
Hugh Campbell will be Fine Tuning
From: Campbell,
Hugh P
Sent: Thursday, January 29, 2004 2:38 PM
Subject: RE: [PES_BMM] Unit -KH-1-2004-BLT
Ken does not have the time to finish adjusting the motor so he is going to hand it off to me next week. I will be using the gauss meter mounted on an x and y micrometer stage to profile the magnetic fields and see if I can figure out what the actuator is doing when it finally starts to work. Hopefully it will provide the clues and lead to an easier way to do the final adjustments. With some luck, I might have it running by the end of next week. I will make my findings available as soon as I can including video. I have to say Ken has done an outstanding job on his unit. I have personally seen it and it has been fabricated with high precision and runs tight and smooth. I feel that if any unit is going to work based on the specifications, this is the unit. Hopefully, I will have some good news by the end of next week. Hugh [Hugh Campbell] Magnetic Balance AchievedKen said to me in a short phone call, That his Unit is magnetically balanced. This is the big step towards a working unit. This shows that we are doing it right on, and the rotor design is OK. His unit has 4.5 shaft spacings, and zero back lash on the gear set. Next he has not had, but 15 min to work with it. With more time he should have it. This is not an exact reproduction of Unit 0, but it is an Off the shelf design. This is the plan that people can get the parts and make unit. So this design is more important than Unit 0 in that regard. Regards Douglas Assembled Unit; Having Trouble Getting it to Work
From: Campbell,
Hugh P
Sent: Wednesday, January 28, 2004 4:29 PM
Subject: RE: [PES_BMM] Re: Bowman patent?
Ken has an assembled unit and is having trouble getting it to work. I am doing what I can to help him out. Do you have a detailed explanation with some of the intuitive tips necessary to get this motor to work? It seemed to me that it took you several hours of playing around to get it going. It seems this is an area that could still be a stumbling block for most people. Hugh Tri-Metric ViewGroup, Here is a close-up view of the actuator magnet holder as designed for easy adjustment.
Ken Hegemann
From: kenh2k@aol.com
Sent: Tuesday, January 20, 2004 10:59 AM
Subject: Re: [PES_BMM] Picture and Diagrams of our builds
Here is a tri-metric view of my replication of the Bowman motor.
Please note that the only change I have made since posting the AutoCad drawings is that the large center rotor is now nearest to the mounting plate instead of the two smaller rotors being nearest to the mounting plate. This change has absolutely no effect on the functionality of the motor because at the same time, I have reversed polarity of all of the magnets. So this rendition is magnetically identical to the Bowman motor. This change allows for much easier mounting of the actuator magnet and provides more latitude in adjusting the position of the actuator magnet. I created this drawing using the 3-D software Solid Works 2004. I will post the actual Solid Works files within two weeks. As far as progress, I will be ready for testing of this replication on Jan 31.
Ken Hegemann
Have some Extra Magnets
From: kenh2k@aol.com
Sent: Sunday, January 11, 2004 9:53 PM
Subject: Re: [PES_BMM] Purpose
Replicating as Close as Possible, Though Missing DetailsMagnet Vendors
Sent: Thursday, January 08, 2004 8:36 PM
Subject: Re: Campbell: [PES_BMM] First AutoCAD rendition of Bowman by Ken Hegemann
Shooting from the Hip
From: kenh2k@aol.com
Sent: Wednesday, January 07, 2004 10:43 PM
Subject: Re: Campbell: [PES_BMM] First AutoCAD rendition of Bowman by Ken Hegemann
Hugh,
I agree that the drawings should be detailed. However, with all due respect, I feel it is
just a bit too early for that. I would prefer to assemble my rendition first, get a few bugs
sorted out, modify the drawings accordingly, then present detailed drawings to the group.
Hope you understand. Otherwise we will have renditions of renditions and perhaps too much
lost time by some individuals.
Ken Hegemann
Regardless of how you build your framework, here is some scoop on the gears. I have selected 24 DP with a ¼ inch face. The small gears have 72 teeth while the larger gear has 144 teeth. These are standard gears. I am starting out with “0” backlash just to be safe. Aluminum is a good material choice. Ask for a gear quality 10 or better. 24 DP is probably over-kill on the gears. Going down to as little as 64 DP would likely be OK for this low torque application. Anyway, for now it really doesn’t make any difference. You will be able to get the gears with a built-in hub with a ½ inch bore. The gears as mentioned above have 3” and 6” respective pitch diameters. This combination yields (and dictates) a 4-1/2” shaft center distance. No one has told us what the exact center distance should be and frankly, I don’t think it is a real critical issue when considering the very minor “magnet approach angle” changes that are encountered by changing the center distance. I am personally happy with the 4-1/2 inch center distance. Others may want to try something else. You can change the center distance by selecting a different gear DP and then change the number of teeth. As long as you have half as many teeth in the small gear, you will be OK. As far as the material for the frame, I am using Delrin. I really don’t think going with a see-thru material is necessary. The rotors are completely exposed and easy to inspect. What’s to see under the first mounting plate? Only the gear train and that is elementary. Anyway, Delrin is a very tough material and has perfect machine ability qualities and is not very expensive. You can get it white or black. I am going black on my replication. As far as timing on my particular replication… I drew up all of the parts before leaving yesterday on a two-week trip. All of the components are being made for me while I am gone. I will personally assemble the unit upon return so I should have the thing together by January 31. I will keep you abreast of the progress. Ken Hegemann Jan. 7, 2004
From: KenH2K@aol.com
Sent: Wednesday, January 07, 2004 11:34 AM
Subject: FreeEnergy.GreaterThings.com Contact
Sterling,
[...] Regarding the shape of the rotors, I do have a number of very specific reasons
for the shape which will become evident once the unit is assembled. I will explain in detail
in due course. I have noted however at the base of the drawing that the rotors can be
round. I will have the unit completed by January 31, running??, that's another issue.
Thanks,
Ken Hegemann
From: kenh2k@aol.com
Sent: Tuesday, January 06, 2004 3:16 PM
Subject: Re: [PES_BMM] Ken Hegemann page
Eric, I will have a rendering only of the ACad drawing by Wednesday and the actual ACad
files will be available later this month as I will be traveling until Jan 25.
Thanks,
Ken Hegemann
From: KenH2K@aol.com
Sent: Tuesday, January 06, 2004 10:58 AM
Subject: Re: Ken Hegemann joins BMM team
Sterling,
I will get the ACad renditions to you by Wednesday PM. In meetings today and getting
ready to travel on Thursday.
Sterling,
I drew the entire device last night on AutoCAD and have ordered the components this AM.
I have made a number of modifications from the sketches I was able to obtain from your website,
but final functionality should be the same. The changes I made will allow for easier
adjustments in due course. I have all of the equipment needed to make this thing right here
in my laboratory. I have developed a high-end power oral care device. See hydrabrush.com
Thanks again,
Ken Hegemann
See alsoContact
Page created by Sterling
D. Allan, Jan. 6, 2004 |
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Bowman
Magnet Motor Open Sourcing Project
