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lrk-torquemax · building high-torque brushless e-motors
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Messages 11950 - 11979 of 11979   Oldest  |  < Older  |  Newer >  |  Newest
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11950
http://scripturn.com/video_P8Pb_psj1A8.html ManuLRK [Non-text portions of this message have been removed]...
manulrk
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Sep 30, 2008
7:18 pm
11951
... Only bested by solar powered electric aircraft : http://www.solar-flight.com/news/index.html -kert...
Kaido Kert
kaido_kert
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Sep 30, 2008
8:28 pm
11952
Goedendag ;-) And pictures too: <http://www.rcgroups.com/forums/showthread.php?p=10651516#post10651516> Vriendelijke groeten ;-) Ron van Sommeren near...
Ron van Sommeren
ron_van_somm...
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Oct 1, 2008
3:04 pm
11953
Goedendag, See these numbers comparing original and rewound motors: http://www.rcgroups.com/forums/showthread.php?t=930163 Vriendelijke groeten ;-) Ron van...
Ron van Sommeren
ron_van_somm...
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Oct 1, 2008
3:21 pm
11954
Hi! Maybe it's quite offtopic, but here is a lot of experts gathered, so it won't be difficult to find an answer... I am looking for brushless replacement for...
Marko Pavlin
mpavlin969
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Oct 2, 2008
10:58 am
11955
Hi Typically an inrunner BLDC Speed 700 is 354g so an inrunner around 220-300 g could do the job Examples Feigao 54084-xxS at 225g Feigao 54084-xxL at 282g ...
Louis FOURDAN
fourdanlouis
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Oct 2, 2008
11:59 am
11956
Goedendag, Another insulation method, first picture by Hrvoje: http://www.rcgroups.com/forums/showthread.php?t=932785 Vriendelijke groeten ;-) Ron van Sommeren...
Ron van Sommeren
ron_van_somm...
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Oct 2, 2008
11:52 pm
11957
what might the physical size of the stator an rotor be for a generator or a electric assist bicycle?...
finemica
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Oct 3, 2008
1:29 pm
11958
Hi It depends of the power from 250 up to 750W With a typical ratio 2W per gram of motor, count a weight of 250 up to 500 grams Now it depends if you are...
Louis FOURDAN
fourdanlouis
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Oct 3, 2008
3:11 pm
11959
Hello, I've just joined the group. Hope I'm not violating any protocols with my story here, the group introductory message I received suggested I introduce...
max gale
max2tall
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Oct 5, 2008
8:11 pm
11960
It sounds like you are trying to use the motor as a brake. Are you trying to generate power or provide resistance to some other work? If you just need a brake,...
Pete Burchell
burswelt
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Oct 5, 2008
9:33 pm
11961
... In that case, the resistance is proportional to the speed of the bar. I think Max is intending it to be an infinitely variable bench press, so that you...
Rick Page
rick_page53
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Oct 6, 2008
12:37 am
11962
There shouldn't be any particular difficulty with this. You will just need a sensor based controller as most brushless motor controllers wont give any torque...
Jake Anderson
zyeborm
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Oct 6, 2008
1:13 am
11963
Thanks Pete, Rick & Jake for your replies, Rick: Am grabbing your name for this thing, 'VBP' is much easier than trying to describe it, thanks. The motor must...
max2tall
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Oct 6, 2008
3:03 am
11964
... You probably wouldn't want that, the F-P motor would draw 1000-2000 watts when stalled which would be a significant heater and a major cost. I was thinking...
Rick Page
rick_page53
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Oct 6, 2008
4:05 am
11965
Haha, hopefully the universe will reveal something whilst you sleep. OK, "sit stalled all day long..." was an exaggeration, I just meant could operate for a...
max2tall
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Oct 6, 2008
7:24 am
11966
Perhaps, spin the brake disk with a motor and move the magnets about the disk with the bar. The magnets would try to couple for the return stroke. The...
Pete Burchell
burswelt
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Oct 6, 2008
11:03 am
11967
you could just use an electromagnetic brake with some sort of torque meter to measure mechanical resistance ... From: Pete Burchell To:...
arthurok
arthurok_2000
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Oct 6, 2008
11:11 am
11968
... Just because the motor isn't spinning doesn't mean you need to apply full power to it. Rather than putting 12V across the stalled motor, put 3 or 4 through...
Jake Anderson
zyeborm
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Oct 6, 2008
11:57 am
11969
Hi, Well, yes, rewinding scheme, size, turns etc, is kinda what the original question was all about. Maybe that got lost in amongst the concept explanation. ...
max gale
max2tall
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Oct 6, 2008
1:30 pm
11970
Nice info on Li-ion batt., storage. I suppose it is the same for Li-Poly? <http://www.sony.com.cn/products/ed/battery/download.pdf> ...
manulrk
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Oct 6, 2008
7:25 pm
11971
Storing LiPoly's in a discharged state is not such a good idea... General recommendation from manufacturers is to store them at 40-50% charge and to store them...
Kenny Valdemarsson
kenta16807
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Oct 6, 2008
7:36 pm
11972
... Yes. Polymer batteries are specifically mentioned in the handbook (Section 2-5-1). LiPo are Lithium Ion Polymer. ... I would tend to believe Sony over...
Rick Page
rick_page53
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Oct 7, 2008
12:00 am
11973
... That one sure brought a smile to my face :-) Personally I trust a Sony just about as far as I can throw it... At least we agree on the bottom line ;-) Take...
Kenny Valdemarsson
kenta16807
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Oct 7, 2008
2:52 pm
11974
Goedendag ;-) Rotor (flux ring & drive plate) machined from one piece of steel, by Ralph Okon (www.powercroco.de): ...
Ron van Sommeren
ron_van_somm...
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Oct 9, 2008
11:56 am
11975
Hi, I try to figure out the exact battery - balancer connector connection of a Flightpower EVO20 4900mAh 6S1P Here are the pictures of the batt. And plug ...
manulrk
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Oct 9, 2008
9:50 pm
11976
Those aren't the usual Flightpower plugs, which are black. Did someone wire that up? ...
Rick Page
rick_page53
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Oct 10, 2008
1:08 am
11977
MAnu See the link below: http://www.hackerbrushless.de/images/FPSteckerbelegung6S.pdf [Non-text portions of this message have been removed]...
Jorge Alves
jmralves
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Oct 10, 2008
5:25 pm
11978
Yeeeeeeeeeeees, Thank you so much! 2 days of searching, and finally measuring. This confirms my findings. ManuLRK ... From: lrk-torquemax@yahoogroups.com ...
manulrk
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Oct 10, 2008
8:49 pm
11979
Goedendag ;-) An article explaining wye and delta hook-up: http://www.cncmagazine.net/archive01/v2i07/v2i07i.htm (From ...
Ron van Sommeren
ron_van_somm...
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4:32 pm
Messages 11950 - 11979 of 11979   Oldest  |  < Older  |  Newer >  |  Newest
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