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
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Ffreeenergynews.com%2FDirectory%2FMagneticMotors%2FBowman%2Fimages%2Fbowman_bedini.jpg&hash=a5700eaecf1f2ffc95331ff17ff3dd4d39adc767)
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.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Fbowman1.jpg&hash=96217a9a70395f5ec0061ee2b79bf543fe5038f0)
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.
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.
Well that was quicker than I thought, Gears all cutout.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Fcogs1.jpg&hash=01c59240c7544ffbccd2922feaa0eec821e3eb1d)
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.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.pureenergysystems.com%2Fos%2FMagneticMotors%2FBMM%2FBowmans_friend%2Fimages%2FBowman_diagram_friend_revised_300.gif&hash=a0a1d10d3e07e5aa52d5f86d0fe7209cb7e5410d)
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.
Quote from: AB Hammer on August 12, 2008, 01:48:36 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.
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.
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.
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.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Frotor1.jpg&hash=f6e66ddce662f4eaa15766b1c01dbef2be48892f)
This will then let me use 3mm brass countersunk screws.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Frotor2.jpg&hash=ef4a504cd1cdcca064973aa6d7fc88313dd0fe94)
These then mount some nice neo disks perfectly.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Frotor3.jpg&hash=885209de556ed778d5347ba66f7dc43f3f76fde7)
All 3 Rotors and Gears ready for mounting.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Frotor4.jpg&hash=bb2cf9326914c56cc8426422259f99358b9ba6c6)
Off to make the base and lathe the brass rods!
More to come
Cheers
Sean.
Quote from: AB Hammer on August 12, 2008, 03:39:25 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.
Looks cool mate, you as bad as me, I was adding magnets to my big wheel the other day and trying various things.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Fgmag.jpg&hash=036f0ad3bf05cdbb3943440d0406e4b35887add8)
But not as elegant as what you have there.
Will drop you a PM as would love to see more of it.
Cheers
Sean.
I admire your machining skills very much.
Quote from: broli on August 12, 2008, 04:57:20 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.
Base all done!
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Fbase1.jpg&hash=0d00278bfc5b8e9c543ddf635229c56a5245911f)
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.
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.
Okay another update
Knocked out the sides and bottom connectors today
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Fsides1.jpg&hash=021721d9fce9d5d3746f0c9126caa41de8d3ec5c)
Joined it all together and chucked in a couple of brass bars to make it rock solid.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Fframe1.jpg&hash=a12789363a8652ee509fefe3ea1dceeaf4c32a55)
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Fframe2.jpg&hash=f6110b1bf78c64e014c8045b0fd3b6c3a02f5f96)
Hopefully the Threaded bar will turn up tomorrow so I can mount it all up and start playing.
Cheers
Sean.
Quote from: broli on August 13, 2008, 08:31:29 AM
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.
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!
Quote from: 0vladalv0 on August 13, 2008, 06:26:13 PM
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.
Hi Sean.
Perhaps you find some useful info here: http://www.fdp.nu/bowman/default.asp (http://www.fdp.nu/bowman/default.asp)
Regards,
Eric.
Quote from: eavogels on August 14, 2008, 03:55:34 AM
Perhaps you find some useful info here: http://www.fdp.nu/bowman/default.asp (http://www.fdp.nu/bowman/default.asp)
Regards,
Eric.
Hi Eric
In my first post on this thread I already have linked to your excellent site ;D
I am going by the metric dimension sheet from the links.
Good stuff and well done.
Cheers
Sean.
Sorry Sean,
I have missed that.
Eric.
Quote from: eavogels on August 14, 2008, 07:13:16 AM
Sorry Sean,
I have missed that.
Hi Eric
Did anyone else give Followups that have not been posted, I know it was 4 years ago.
What did you think to the statement made by Bowmans friend, regards the magnets?
http://www.pureenergysystems.com/os/MagneticMotors/BMM/Bowmans_friend/index.html
Cheers
Sean.
Hello Sean.
Back in 2004, 2 devices of Bowman were replicated. The device from 54, and the device that Bowman's friend mentioned. See attachment.
Many different set-up were tested. With magnets pointing in different directions. But with no success.
Workmanship is a very important thing in this devices. Bowman used fish-oil in his beatings. The device was made with watchmaker precission.
Eric.
Sean.
I noticed that you use different materials and magnets, then the original device. Not sure if that is a good choise. In 54 there were no NEO's.
Plastic gears have less mass then the metal gears.
Eric.
Threaded Rod turned up.
So cut to length and lathed down the ends.
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Frods1.jpg&hash=9f150a857df9f3a7f76499251b1906fe211f20b6)
Perfect fit and they are so loose but with no movement back and forth, took a long time on the lathe shaving 0.2 mil off at a time, but worth it :)
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Frods2.jpg&hash=ea9509b12c222828468b621860b4b72efe64c7f6)
I lined up the Cogs to see if I got it right and again perfect fit ;D
(https://overunityarchives.com/proxy.php?request=http%3A%2F%2Fwww.overunity.org.uk%2Fbowman%2Frods3.jpg&hash=1515770a5ec7e471b62e16fd2abfaf1c65065b63)
The M8 Brass nuts and washers did not arrive today, but hopefully tomorrow.
Cheers
Sean.
Quote from: eavogels on August 14, 2008, 08:15:09 AM
Sean.
I noticed that you use different materials and magnets, then the original device. Not sure if that is a good choise. In 54 there were no NEO's.
Plastic gears have less mass then the metal gears.
Eric.
Hi Eric
I have ordered some Alnico magnets and waiting for them to arrive and also have different Rotors in mind for them.
For now I want to try a number of different configurations and using what magnets I have here.
The way I have built the Frame should allow me to swap back and forth different Rotors.
What I noticed with all the other replications was that they did not really reduce their losses with regards friction by using big bearings.
Is there info anywhere else on the second design?
Cheers
Sean.
Does anyone know what happened to Douglas Mann who claimed to have a Bowman Motor working and detailed his construction in detail at this link
http://www.pureenergysystems.com/os/MagneticMotors/BMM/plans/introduction.htm
Cheers
Sean.
Quote from: CLaNZeR on August 14, 2008, 08:34:18 AM
What I noticed with all the other replications was that they did not really reduce their losses with regards friction by using big bearings.
Is there info anywhere else on the second design?
The problems were not the bearings but the aligning of the shafts. Aligning the gears at the back, the long rods AND the magnetic gears in front gives problems if the fitting is not 100%.
The first thing you can do to find out if you are on the right track is checking if you can give one of the gears a spin and see if all rods keep spinning some rotations. If so, you can start testing with the actuator. Otherwise you have to align. Since you use CNC, you probably have a good alignment from the beginning. As you see on the other replications, moset devices have everything adjustable. The gears were metal for the flywheel effect.
The device on my website is 100% based on the device that Robert Calloway built and claimed it worked. During the project Robert gave advice to the builders.
Eric.
Quote from: CLaNZeR on August 14, 2008, 08:53:30 AM
Does anyone know what happened to Douglas Mann who claimed to have a Bowman Motor working and detailed his construction in detail at this link
Yes, I do.
He still does experiments with free energy.
Eric.
Quote from: CLaNZeR on August 14, 2008, 08:34:18 AM
Is there info anywhere else on the second design?
Some info is here: http://fdp.nu/shared/manager.asp?d=files\Bowman64 (http://fdp.nu/shared/manager.asp?d=files%5CBowman64)
(often this overunity.com is responding so extreemly slow. Do you experience that as well?)
Quote from: eavogels on August 14, 2008, 12:40:07 PM
The problems were not the bearings but the aligning of the shafts. Aligning the gears at the back, the long rods AND the magnetic gears in front gives problems if the fitting is not 100%.
The first thing you can do to find out if you are on the right track is checking if you can give one of the gears a spin and see if all rods keep spinning some rotations. If so, you can start testing with the actuator. Otherwise you have to align. Since you use CNC, you probably have a good alignment from the beginning.
Hi Eric
I want to use Brass nuts and washers but they are not here yet. But I wanted to check the alignment of the Gears and used some Steel nuts for now.
Here is a small video showing the Gears and their looseness as such.
I also popped on the magnets I had just to get a feel for the magnet interactions, I was surprised.
http://www.overunity.org.uk/bowman/CLaNZeRPlayingwithBowmanMotoPart1.wmv
Cheers
Sean.
Quote from: eavogels on August 14, 2008, 12:44:56 PM
Yes, I do.
He still does experiments with free energy.
Eric.
Did he never re-build another Bowman and show a video? I find this very surprising.
Shame really
Cheers
Sean.
Quote from: eavogels on August 14, 2008, 01:17:25 PM
Some info is here: http://fdp.nu/shared/manager.asp?d=files\Bowman64 (http://fdp.nu/shared/manager.asp?d=files%5CBowman64)
(often this overunity.com is responding so extreemly slow. Do you experience that as well?)
Today Overunity.com has been really slow, but seems okay at the moment ;D
Many thanks for the link will go take a look!
Quote from: CLaNZeR on August 14, 2008, 01:26:16 PM
Did he never re-build another Bowman and show a video? I find this very surprising.
He sure tried; we all did. With no success. This is not new: every now and then someone makes something that works. But (of course when it is not a hoax) even the inventor is not able to replicate. The problem is that no one knows why it worked in the first place. A very small miss alignment (or a magnet glued with flexibel glue) can be the reason that a device finds it imbalance. Replications often are build with other small miss-allignments and therefore they don't work.
One more very important thing with the Bowman: all magnets should have the same strength, otherwise the magnetic gears are not stable. If you have 16 magnets and put them on a gauss meter, you'll see that only 3 or 4 are the same.
Eric.
Sean I commend your effort. And it look good.
Sean
I sure I don't just talk for myself when I say good luck on your work and we are looking forward to you getting back to talk on the forum as well as building.
PS I sent you another email with a video of a magnet being accelerated, by field manipulation.
Quote from: AB Hammer on August 29, 2008, 02:53:35 PM
Sean
I sure I don't just talk for myself when I say good luck on your work and we are looking forward to you getting back to talk on the forum as well as building.
PS I sent you another email with a video of a magnet being accelerated, by field manipulation.
Hi Alan
Just replied to your email, sorry for delay, but work overload getting in the way again of playing with magnets grrrrrrrrrr
I got the Alnico magnets arrive last weekend and will try and find time to Mill out the Rotors this weekend to fit them.
Also nice shiny Brass nuts arrived so I can get rid of any Steel that would influence the field as such.
Cheers
Sean.
I have been searching for a good Small Desktop CNC machine however, is there one that is affordable?
Thank-you
as my name says im just a reader ::)
however i stumbled upon this design lately, but in form of a cropcircle (been in there)
check out this schematic
http://www.x-cosmos.it/cropcircles/view.php?img=../Admin/cropcircles/foto/orig/diagram1120.jpg (http://www.x-cosmos.it/cropcircles/view.php?img=../Admin/cropcircles/foto/orig/diagram1120.jpg)
of this cropcircle
http://www.x-cosmos.it/cropcircles/view.php?img=../Admin/cropcircles/foto/orig/photo1120.jpg (http://www.x-cosmos.it/cropcircles/view.php?img=../Admin/cropcircles/foto/orig/photo1120.jpg)
i think the same night i was wondering if this design could have been something related to magnetics and actually asked a women know for 'spiritual' insight in cropcircledesigns (married to a mathematician who is a cropcircle-scientist) especially if she ever came across some design that was related to magnetics. she wasnt quite sure although she had a experience where she felt the cropcircle depictad a machine of some kind.
if this is complete far out please ignore thise message - dont want to offend anybody.
just was wondering if there is any value in this schematic above
best wishes
reada
Quote from: AB Hammer on August 29, 2008, 02:53:35 PM
PS I sent you another email with a video of a magnet being accelerated, by field manipulation.
Why not sharing the video with other readers?
mike
@ reada
Some time back I stated in a post that there were free energy clues in crop circles...but it past without comment.
I only wish I had the necessary technical background to properly look into the phenomena.
Regards...
Yes CNC machines are rather expensive it seems ...
The best thing one could probably do is get with one of the open source CNC DIY projects out there...
There is a few at www.hackaday.com
I am curious what type of CNC clanzer usese and how much the sucker costs...
Clanzers is one he built himself. He actually was trying to sell them too. Not sure what went
on with that. Still, he does have the info on how to make it. If I remember right, his is a 30" bed
which is a nice size to play with. He only has X-Y-Z axis tho. Route bit can only travel vertical
but then it still leaves a lot of possibilities. :P
thaelin
Quote from: mike-ao on September 28, 2008, 06:20:17 PM
Why not sharing the video with other readers?
mike
In time Mike
I do some private e-mail with Sean/CLaNZeR. When I am ready, I will post it. But experiments are ongoing and I haven't finished them. But I will tell you that I get 50% spin with just one set. I deal with magnetic field manipulations when I work with magnet wheels. My first wheel was back in 1974 as a school project. I ran for 1 1/2 days before the center tore out. It didn't run smooth but it had a jerking action which seems to have caused its early demise.
Hi All,
I built a Bowman motor replication about 4 years back. It took me better than a year.
To make a long story short it did not work. I sold it to a fellow in France. I later found this story:
After Bowman died an fellow who knew him quite well said he had a secret compartment built into the aluminum base of his device. Bowmans machine work was so excellent that it was not detectable. What gismo was in that compartment no one will ever know. Hoax?? Who knows.
Tom