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lrk-torquemax · building high-torque brushless e-motors

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  • Members: 3708
  • Category: Radio-Controlled
  • Founded: Apr 24, 2001
  • Language: English
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Messages 1073 - 1102 of 13410   Oldest  |  < Older  |  Newer >  |  Newest
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1073 John Jackson
thermalsoareruk Offline Send Email
Dec 1, 2002
2:08 pm
Stewart apart from the chance of a weak component, how long are the battery and motor leads on your rig? all the best, JJ. John Jackson East Yorkshire England...
1074 nadina.berzina@...
ron_van_somm... Offline Send Email
Dec 1, 2002
2:39 pm
Hi Stewart, I think 3000Tesla is a bit on the high-side, the magnets used in lrk's are 1.1 - 1.3Tesla. Typing error? Met vriendelijke groet ;-) Ron van...
1075 Lew Weaver
lew_weaver Offline Send Email
Dec 1, 2002
6:18 pm
How is a tesla defined please? or what is one tesla? ... lrk's are 1.1 - 1.3Tesla. Typing error? ... 28 ... a ... http://docs.yahoo.com/info/terms/...
1076 sandbee@...
stuflyboy Offline Send Email
Dec 1, 2002
9:24 pm
... Regards, Stewart [Non-text portions of this message have been removed]...
1077 lrk-torquemax@yahoogr... Send Email Dec 1, 2002
9:59 pm
This lrk-torquemax mailing-list help message is sent out every month and upon subscription. CONTENTS ... * LIST ARCHIVE / SEARCH * MESSAGE DELIVERY OPTIONS *...
1078 nadina.berzina@...
ron_van_somm... Offline Send Email
Dec 1, 2002
10:09 pm
Hi Stewart, ... Aha. And since 10000Gauss makes 1 Tesla, your 3000Gauss magnets are 0.3 Tesla. Met vriendelijke groet, Ron van Sommeren ... From:...
1079 Rick Page
rick_page53 Offline Send Email
Dec 1, 2002
10:57 pm
... Assuming it wasn't a faulty part, there were high induced voltages on the battery side. You had long battery leads (I think Kontronik recommends 8") or...
1080 Neil Stainton
neilstainton Offline Send Email
Dec 1, 2002
11:11 pm
The capacitor can blow from over current, too long leads, or from incorrect timing. The Kontronik controller is optimised for Kontronik motors which require...
1081 Ron van Sommeren
ron_van_somm... Offline Send Email
Dec 2, 2002
1:11 am
Hi all, I guess by now there are more and more people out there that(who?) already have successfully built motors. Tell us about the successes, failures and...
1082 Jani Penttila
jpenttil2000 Offline Send Email
Dec 2, 2002
7:07 am
Hi, I agree with Neil, it might be the timing issue that blew up the cap. I made some measurements with my Speedy BL / FLyware 350/25/12.5 2x0.8. Measurements...
1083 stewart and bee
stuflyboy Offline Send Email
Dec 2, 2002
8:39 am
Hello John, The motor leads are 180mm from motor to controller and the battery leads are 200mm from controller to battery. Regards Stewart, Auckland NZ ... ...
1084 stewart and bee
stuflyboy Offline Send Email
Dec 2, 2002
8:42 am
Thanks Rick, the motor was at full throttle, maybe it was underpropped and over-reving? Regards Stewart, ... From: Rick Page To: lrk-torquemax@yahoogroups.com ...
1085 stewart and bee
stuflyboy Offline Send Email
Dec 2, 2002
8:51 am
Hello Neil, The controller has worked fine with my three other 10 pole motors, they have been wound and propped to give around 600watts or 30 amps on 20 cells....
1086 broderincertus Offline Send Email Dec 2, 2002
8:54 am
... for it and 52A max current. So with a three blade, probably close to 60A (and a four blade, at least 60A), which is probably too much for the motor, and...
1087 Petri Nygren
petri_nygren Offline Send Email
Dec 2, 2002
9:33 am
... for it and 52A max current. So with a three blade, probably close to 60A (and a four blade, at least 60A), which is probably too much for the motor, and...
1088 Massimo Ferraresso
max_ferra Offline Send Email
Dec 2, 2002
12:33 pm
Hi all My motor (http://digilander.libero.it/ferramax/bless/bless.html) named 20/15/6 is just in developement to be a good replacement for Geared Speed400...
1089 broderincertus Offline Send Email Dec 2, 2002
12:57 pm
... pagenumber=3). There was a useful formula on Martin Hepperle's site, but alas, it's no more. Btw, almost 60A ~15% more and at least 60A ~20% more than 52A ...
1090 Petri Nygren
petri_nygren Offline Send Email
Dec 2, 2002
1:27 pm
There was a useful formula on Martin Hepperle's site, but alas, it's no more. ***** It IS again, thank god!!! http://www.mh-aerotools.de/ ***** Btw, almost 60A...
1091 Lew Weaver
lew_weaver Offline Send Email
Dec 2, 2002
1:44 pm
Hello Ron and all, I've just connected up my 430-20-22 for the first time (only 9 cells/no load)and it runs!! I'm very pleased. I do not yet have a prop or...
1092 Donald M Matlack Sr.
dononerc Offline Send Email
Dec 2, 2002
1:45 pm
Your rev counter should work with a flash light behind the prop to cancell out the flickering lights from AC voltage. On Mon, 2 Dec 2002 21:55:43 +1300...
1093 broderincertus Offline Send Email Dec 2, 2002
2:19 pm
... Thanks! ... Whether it draws 45A or 60A, the 12,5W is clearly not the right motor (it will draw a lot more than 30A with a four bladed 9.7x6.25" prop); so...
1094 Ron van Sommeren
ron_van_somm... Offline Send Email
Dec 2, 2002
2:21 pm
Hi all, If you you're getting too many messages (I for one like a lively mailing list ;-), send an empty message to lrk-torquemax-digest@yahoogroups.com and...
1095 Rog
artie_fact Offline Send Email
Dec 2, 2002
4:20 pm
... From: "stewart and bee" <sandbee@...> To: <lrk-torquemax@yahoogroups.com> Sent: Monday, December 02, 2002 8:55 AM Subject: Re: [lrk] controller...
1096 Neil Stainton
neilstainton Offline Send Email
Dec 2, 2002
5:17 pm
... Maybe 37.5A is just too near the limit of the 40A controller - especially if the timing isn't spot on. Also perhaps at higher current the motor needs more...
1097 Ron van Sommeren
ron_van_somm... Offline Send Email
Dec 2, 2002
6:58 pm
Hi all, ... http://www.rcmodelflying.co.uk/forum/index.php? board=4;action=display;threadid=245;start=0...
1098 Ron van Sommeren
ron_van_somm... Offline Send Email
Dec 2, 2002
7:01 pm
Hi all, Sometimes my fingers are faster than my mind and they get stuck in the keyboard, hence the previous rubbish message. ... Pictures of Lew's motor during...
1099 Grassi, Roberto
roberto51it Offline Send Email
Dec 3, 2002
5:52 am
Hi Ron, These are the info about what I have done up to now: Motor LRK 350/20/11 Magnets and stator from Torcman, rest of the parts self-made Stator:35mm diam,...
1100 stewart and bee
stuflyboy Offline Send Email
Dec 3, 2002
7:54 am
I have replaced the capacitor with a 50volt one the one that blew was a 35volt one that I had put in to repair crash damage. The motor is now holding a steady...
1101 stewart and bee
stuflyboy Offline Send Email
Dec 3, 2002
8:09 am
Hello Ron, Here is the address of our club with a picture of one of my planes, it is a Bodington Exellence enlarged to 60inch wingspan. It has a 10 pole motor...
1102 J and KJ Jongbloed
jjelec2000 Offline Send Email
Dec 3, 2002
8:09 am
Hello everybody, Finished my second CD-ROM motor rewind(first one smoked, due to windings rubbing against rotor). Anyway got 10 turns of 0.5mm on 9...
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