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Author Topic: Bowman Permanent Magnet Motor Replication 2008  (Read 27733 times)

Offline CLaNZeR

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Bowman Permanent Magnet Motor Replication 2008
« on: August 12, 2008, 04:54:14 PM »
I have been meaning to knock up the Bowman Motor for a while now and realised while doing other stuff that keeps me away from the workshop grrrrrr, that I could happily leave the CNC machine running in the background cutting out the pieces, especially the Coggs as they will take a while.
So I have decided to try the Bowman Machine.

A few people have tried replicating it before and there is a excellent page at The Flying Dutchmans site that covers everything from the history of it, to the replications.
http://www.fdp.nu/bowman/

Also some great info at
http://freeenergynews.com/Directory/MagneticMotors/Bowman/index.html

Okay here is a picture of the Bowman Motor from John Bedini at
http://www.icehouse.net/john1/peter.html

(http://freeenergynews.com/Directory/MagneticMotors/Bowman/images/bowman_bedini.jpg)

As you can see 3 Rotors and 3 Coggs.

I am using the Metric dimensions from the Flying Dutchmans site.
I tried to source Spur gears that were 90mm pitch and 45mm pitch with 70 and 35 teeth but could not find them, so first thing to do is leave the CNC machine running and mill some out of 8mm Delrin.

(http://www.overunity.org.uk/bowman/bowman1.jpg)

I am going to use 10mm Brass Rods and as usual mount them in small 3mm RC bearings to try and reduce the friction as all designs I have seen so far are using big bearings and hence more friction.

Will post progress as I go along.

Is there anymore replications out there apart from the guys that tried 4 years ago?

Cheers

Sean.

Free Energy | searching for free energy and discussing free energy


Offline AB Hammer

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #1 on: August 12, 2008, 07:48:36 PM »
CLaNZeR

 It looks like a fun project, and I love your machines. Are you running a machine shop?  My magnet wheel is doing funny things like it would spin one way for a minute or two after bump starting and then stop and spin the other way. Then it will rock back and forth until stop and then it isn't truly stopped for it just kinda vibrates or may be best called a jiggle, then I move the the parts apart to stop it. LOL It looks like I have a ways to go on mine. May be I need to get you to cut some parts out for me.

Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #2 on: August 12, 2008, 07:59:04 PM »
Well that was quicker than I thought, Gears all cutout.

(http://www.overunity.org.uk/bowman/cogs1.jpg)

Now onto the Rotors to hold the magnets. I do not have Alnico magnets and was going to order some till I read the following about a friend of Lee Bowman:
http://www.pureenergysystems.com/os/MagneticMotors/BMM/Bowmans_friend/index.html

He seems to being going on about diametrically magnetised Rotor magnets.
(http://www.pureenergysystems.com/os/MagneticMotors/BMM/Bowmans_friend/images/Bowman_diagram_friend_revised_300.gif)


Lee Bowman Son sort of backs this up here:
http://pesn.com/2005/08/04/9600143_LeeBowmans_son/

Where he states:
He also recalls that the magnets were not the typical N-S type.  His recollection was that the "pole was in the middle".  He said his memory was not clear on this point.
Which says they are maybe Radially magnetised?

So the Rotors I am making I think I will just place holes in them and tap them out to 3mm for mounting different configs for now.

The plot thickens  ;D ;D

More to come

Cheers

Sean.




Free Energy | searching for free energy and discussing free energy

Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #2 on: August 12, 2008, 07:59:04 PM »
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Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #3 on: August 12, 2008, 08:06:08 PM »
CLaNZeR

 It looks like a fun project, and I love your machines. Are you running a machine shop?  My magnet wheel is doing funny things like it would spin one way for a minute or two after bump starting and then stop and spin the other way. Then it will rock back and forth until stop and then it isn't truly stopped for it just kinda vibrates or may be best called a jiggle, then I move the the parts apart to stop it. LOL It looks like I have a ways to go on mine. May be I need to get you to cut some parts out for me.

Hi AB

Well the small ones are always the fun ones, as they do not take much time and you do not get as messy hehe
Have not forgot about your Gravity design I plan to build, just need a clear run for that one.

Is there a thread with your magnet motor?, I do not think I have seen it and would be interested in taking a look as usual.

I got my own little workshop at home with a couple of CNC machines, Lathes, Drills, grinders, chopping saws etc etc. Just stuff I have collected as I have needed it.
I used to sell my CNC machines at http://www.cncdudez.com but do not have time these days.

If you need any parts that are quick to cutout and do not mind them not being cut to precision Laser tolerences  ;D then give me a shout by all means. Have done a few bits for guys in the forums over time, but as usual it all depends on time, so do not expect a quick turn around  ;D

Cheers

Sean.
 

Offline AB Hammer

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #4 on: August 12, 2008, 09:39:25 PM »
Hay Sean

 I had been debating about posting for it isn't finished. but what the hell, here is an unfinished photo before additions. If you would like a video send me an email. I am not sure when I may youtube it yet. So keep what you see on the video under wraps for now.

Free Energy | searching for free energy and discussing free energy

Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #4 on: August 12, 2008, 09:39:25 PM »
Sponsored links:




Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #5 on: August 12, 2008, 09:43:53 PM »
Rotors all done!!

Gawd at this rate it will be finished by tomorrow  ;D

I cut out 3 Rotors and tapped them with a 3mm thread.

(http://www.overunity.org.uk/bowman/rotor1.jpg)

This will then let me use 3mm brass countersunk screws.

(http://www.overunity.org.uk/bowman/rotor2.jpg)

These then mount some nice neo disks perfectly.

(http://www.overunity.org.uk/bowman/rotor3.jpg)

All 3 Rotors and Gears ready for mounting.

(http://www.overunity.org.uk/bowman/rotor4.jpg)

Off to make the base and lathe the brass rods!

More to come

Cheers

Sean.


Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #6 on: August 12, 2008, 09:50:38 PM »
Hay Sean

 I had been debating about posting for it isn't finished. but what the hell, here is an unfinished photo before additions. If you would like a video send me an email. I am not sure when I may youtube it yet. So keep what you see on the video under wraps for now.

Looks cool mate, you as bad as me, I was adding magnets to my big wheel the other day and trying various things.

(http://www.overunity.org.uk/bowman/gmag.jpg)

But not as elegant as what you have there.

Will drop you a PM as would love to see more of it.

Cheers

Sean.

Free Energy | searching for free energy and discussing free energy

Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #6 on: August 12, 2008, 09:50:38 PM »
Sponsored links:




Offline broli

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #7 on: August 12, 2008, 10:57:20 PM »
I admire your machining skills very much.

Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #8 on: August 12, 2008, 11:05:41 PM »
I admire your machining skills very much.

Hi Broli

But the computer is the skill really as it is doing all the work, some guys in here do it by hand, now that is skill!. I am too lazy and inpatient to do that

Thanks anyway mate

Base cutting as I type :)

Cheers

Sean.

Free Energy | searching for free energy and discussing free energy

Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #8 on: August 12, 2008, 11:05:41 PM »
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Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #9 on: August 13, 2008, 02:15:03 PM »
Base all done!

(http://www.overunity.org.uk/bowman/base1.jpg)

I decided to order some brass threaded rod for the axles as it will allow me to adjust the spacing on each gear and rotor.
That is going to take a couple of days to deliver but I can make the axle holders for now.

Cheers

Sean.

Offline broli

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #10 on: August 13, 2008, 02:31:29 PM »
I guess since it's a CNC operation anyway why not just make it all fancy :p. Btw CLaNZeR something not fully related. I don't know if you have noticed this recent video...

http://www.youtube.com/watch?v=4foY5r2TMOo

But this idea made me think "wow this is so simple and obvious why haven't I thought of it". It uses the centrifugal force that pulls the axel to move it forward.

Free Energy | searching for free energy and discussing free energy

Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #10 on: August 13, 2008, 02:31:29 PM »
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Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #11 on: August 13, 2008, 10:56:36 PM »
Okay another update

Knocked out the sides and bottom connectors today

(http://www.overunity.org.uk/bowman/sides1.jpg)

Joined it all together and chucked in a couple of brass bars to make it rock solid.
(http://www.overunity.org.uk/bowman/frame1.jpg)

(http://www.overunity.org.uk/bowman/frame2.jpg)

Hopefully the Threaded bar will turn up tomorrow so I can mount it all up and start playing.

Cheers

Sean.

Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #12 on: August 13, 2008, 11:00:13 PM »
I guess since it's a CNC operation anyway why not just make it all fancy :p. Btw CLaNZeR something not fully related. I don't know if you have noticed this recent video...

http://www.youtube.com/watch?v=4foY5r2TMOo

But this idea made me think "wow this is so simple and obvious why haven't I thought of it". It uses the centrifugal force that pulls the axel to move it forward.

Nice one Broli, I had not seen that before, now to suss out how to get it on a wheel!

Trying to stay focused on this project for the moment, because you know what I am like I will end up with multiple projects on the go and none of them get finished then  ;D ;D

Thanks for the link though, defo one for the future play list.

Cheers

Sean.

Offline 0vladalv0

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #13 on: August 14, 2008, 12:26:13 AM »
Where do you get such equipment? I always struggle with finding the proper materials and tools...It can get very frustrating using wood and such. But enough about me, GREAT craftsmanship, kudos to you.

Keep up the great work! 

Offline CLaNZeR

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Re: Bowman Permanent Magnet Motor Replication 2008
« Reply #14 on: August 14, 2008, 01:27:57 AM »
Where do you get such equipment? I always struggle with finding the proper materials and tools...It can get very frustrating using wood and such. But enough about me, GREAT craftsmanship, kudos to you.

Keep up the great work! 

Hi 0vladalv0

I used scrap pieces of 6mm Polycarbonate lying around from other projects for the clear stuff, The 8mm Delrin for the Cogs was again left over from another project, the bearings are just 3mm ID / 6mm OD RC bearings and the 10mm Brass Rod again left over from another project!

I just tend to use what I have lying around as materials and just cut them a little bit different so you do not see the scratches so bad  ;D

Must admit it would of made life easier if I had orderd some 12mm Polycarbonate for the side pieces as drilling, cutting out and hand tapping some 8mm Blocks took ages and was a pain in the ass. If I had 12mm Polycarbonate I could of cut the side out and drilled some holes straight up into it.

So basically just using what I have lying around, well apart from having to order some brass threaded rod to mount the rotors and cogs, but that will be left over and used on the next project !

The tools I used were a Small Desktop CNC machine, Small Lathe, Electric Power HackSaw, Press Drill and a few hand tools.

Cheers

Sean.

 

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