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Post by creasysee on Dec 19, 2019 8:18:27 GMT -6
I have committed myself to be successful Hi Skyrob! Please, please, don't waste time soldering the commutator to this winding! Time is the most precious thing we have. Rewind the winding at once! You will not get current in the primaries. I have 76 turns AWG11 now and I think that's too much! Also, it's too thin a wire for a core of this power. Hi all!
I'm polishing the commutator plane by hand on the glass. Found defects epoxying, were air bubbles and additionally fill them epoxy resin. Regards, creasysee
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Post by Marathonman on Dec 19, 2019 11:02:55 GMT -6
Sorry to hear about defects, same thing with me and that is why i decided to redo the bearing holder. the clips just didn't jive with me even though they worked, now it will be much more secure. very good advice from experience. In the patent he uses "R" and Commutator bars to aide in his description. think about it in a Physics point of view, why would Figuera use very thick commutator bars then connect them together with very thin wires. the thin wires if there would burn up in reality and/or have a crap load of resistance along with the elementary "R" having resistance. i am sorry but there is NOT ONE PHYSICIST or SCIENTIST in the world would do something so stupid and blatantly wrong. besides the drawing being used for the description, the commutator bars are the actual winding's on the core so naturally they would be thicker knowing part G becomes the power supply once started. then on that note since there are winding's on a closed core it will produce inductive reactance automatically when the brush moves. so if it produces a resistance to the original current flow then why in the world would a Physics Professor have further resistance in the system as that is entirely unnecessary producing massive losses. WRONG ! any real Physics Professor would not do that and would strive to reduce all unnecessary resistance as much as possible as all resistance is converted to heat and is NON- recoverable losses.since "R" in the patent is drawn in it's elementary manor to facilitate comprehension, it was drawn this way to show the system has some resistance of some sort and since inductive reactance is magnetic in nature. the only way to show resistance in the device is to draw a picture showing some resistance and that would be "R". in reality "R" does NOT EXIST at all because all resistance in the system resides between the wires on part G's closed core in the form of inductive reactance. so why should part G's wire be thicker then the rest of the system??? to reduce resistance as that equates to further losses. is also becomes the power supply and must be able to handle the load. also since it has a rotating brush or brushes encircling on it, thicker wires will last longer and can be reworked to attain a flat surface again from years of operation. then to further on that thought of efficiency, the primaries are wound with as little resistance as possible as they are wound specifically as electromagnets to do their job of producing a magnetic field as efficient and responsively as it possibly can. why add more resistance and losses to the system when it is NOT NEEDED as part G controls the current flow NOT the primaries. at a physics standpoint you must start thinking in terms of efficiency and speed of operation if you are to succeed at your reproduction of the Figuera device. the additions of complexity will stifle your attempts to attain self sustainment. a complete understanding of the 1908 patent will allow you to get much, much farther in your replication then you realize which again takes you back to the physics end of reality. the physical properties of this device must always be considered, listened to and followed otherwise you will fail in your replication attempt. Regards, Marathonman
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Post by Deleted on Dec 20, 2019 2:19:01 GMT -6
I also finding defects in my replication build i have balanced the brush assembly and realized that as the brush will wear out it will become unbalanced, I have estimated half brush wear for perfect balance , time will show. how ever for next build i will go with Creasysee idea with 32 segment commutator and also this will half rotating speed and keep perfect balance due approximately even wear on opposing brushes im taking your comments on the board and part R is only soldered on commutator and it will be replaced as needed. this build is experimental only to be able observe commutator function and solenoid activation(primary) and I have number of variacs from 2A to 20 A current rating to use later for large build. but i need to check this out , and if it doesn't work this it will give me more strength to improve my replication design.
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Post by cornboy on Dec 20, 2019 3:28:51 GMT -6
Hi Skyrob, lot's of good work there, please don't forget that the brush Must cover more than one commutator segment, or your primaries will switch on and off and create havoc with your build, from the inductive spike you will create, also you will lose the constant magnetic pressure between the primaries that is needed to induce the secondaries.
Regards Cornboy,
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Post by Deleted on Dec 20, 2019 4:46:04 GMT -6
Hi Cornboy
The commutator sections have 0.5 gaps between segments and brush is 6 mm thick I’m very aware of problem with disconnection of primaries but brush must work exactly the same way as on dc motors Brush also needs to be run in to confirm with diameter that works on Rule of thumb brush is Usually overlapping gap between the segments with a half segment width of segment . In my case it is little les due segments length is 20 mm That is reason why I did only 16 segment due Les chance of disconnecting connection with primaries
How ever my target is to achieve magnetic field near maximum and this can be only establish with gaussmeter test , I’m still waiting on it Will publish results for study Remember in all calculations is current in coil and or number of turns that effect Field strength As MM said maximum saturation is what what I need on given core any more will turn into core heat I’m looking forward for your commutator working
One more think if you need sand and polish epoxy , please work with water and perhaps a little dishwashing liquid That will get epoxy smooth Good luck Do you live in Australia?
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Post by creasysee on Dec 20, 2019 7:16:08 GMT -6
Rule of thumb brush is Usually overlapping gap between the segments with a half segment width of segment. Hi Skyrob. Cornboy, MM and I are meaning that Y must be more than X. See attached pic. MUST BE. Regards, creasysee
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Post by Deleted on Dec 20, 2019 14:32:58 GMT -6
This is very interesting That will keep two connections timely connected Your problem with no connection is easy fixed with tiny constant bias of DC supplied to primaries independent from commutator
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Post by creasysee on Dec 21, 2019 7:16:06 GMT -6
That will keep two connections timely connected Yes, as described in the patent.
Regards, creasysee
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Post by Marathonman on Dec 21, 2019 10:30:04 GMT -6
That will keep two connections timely connected Yes, as described in the patent.
Regards, creasysee
Imagine that, a thought of following the patent, wow, what a concept as i never would of thought of that. MM
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Post by Deleted on Dec 21, 2019 13:40:07 GMT -6
ouch .....................
must build new comutator
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Post by creasysee on Dec 21, 2019 14:02:51 GMT -6
No comments. Regards creasysee
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Post by cornboy on Dec 21, 2019 15:01:36 GMT -6
Looking good Creasysee, you must be getting excited to connect it all up and giving it a spin.
All The Best Cornboy.
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Post by Marathonman on Dec 21, 2019 18:03:48 GMT -6
Most definitely looking good and very solid. i have my fingers crossed and am excited for you. love the spring tension also, nice idea to add that.
Regards, Marathonman
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Post by Deleted on Dec 22, 2019 14:21:34 GMT -6
complete assy with test board
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Post by Marathonman on Dec 22, 2019 14:28:33 GMT -6
I see you are coming along nicely. start the drum roll and keep your fingers crossed.
Marathonman
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