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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 6916 - 6945 of 13410   Oldest  |  < Older  |  Newer >  |  Newest
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6916 wurpfel Offline Send Email Nov 1, 2004
8:33 am
Hi Folks I`m a owner of a flyer F4 (electricbike) and use it to ride 12km on the job. It`s a direct-drive layout with a topspeed of 45km/h (non-sweat-speed is...
6917 Stefan Trethan
stefan_trethan Offline Send Email
Nov 1, 2004
8:39 am
... I have read about the system in busses. But how can you make 100krpm withouth things disintegrating? which bearings do you use? Isn't that supersonic on...
6918 John Olsson
john_lssn Offline Send Email
Nov 1, 2004
8:44 am
Have You ever conected two electrolyte capacitors in paralell? Since they store electricenergy in a chemical way, potential is corelated to chemical...
6919 Michael Young
mikewhy0 Offline Send Email
Nov 1, 2004
10:03 am
... From: "John Olsson" <john@...> ... Without going into great depths on theory, which I'm certain I know less of than you, it would seem that in a...
6920 Michael Young
mikewhy0 Offline Send Email
Nov 1, 2004
10:12 am
... From: "Stefan Trethan" <stefan_trethan@...> ... With enough mass to store useful amounts of energy, it would also be one heck of a gyroscope. Should be...
6921 DHC
dhcwat Offline Send Email
Nov 1, 2004
10:20 am
Have a look at: http://www.parrypeoplemovers.com/PR18-2-2003.htm Cheers ... From: "Michael Young" <mikewhy@...> To: <lrk-torquemax@yahoogroups.com> ...
6922 Stefan Trethan
stefan_trethan Offline Send Email
Nov 1, 2004
10:27 am
On Mon, 1 Nov 2004 04:03:15 -0600, Michael Young <mikewhy@...> ... Whatever, Michael, whatever ;-) Did i extract "i think it will work but i'll try...
6923 Michael Young
mikewhy0 Offline Send Email
Nov 1, 2004
10:40 am
... From: "Stefan Trethan" <stefan_trethan@...> To: <lrk-torquemax@yahoogroups.com> Sent: Monday, November 01, 2004 4:26 AM Subject: Re: [lrk] 2 Packs in...
6924 John Olsson
john_lssn Offline Send Email
Nov 1, 2004
10:47 am
... Yes. charge or chemicalequlibrium could also be read as cell voltage. sorry for this mixup. It has not to do with battery capacitans. The load would see...
6925 Michael Young
mikewhy0 Offline Send Email
Nov 1, 2004
11:03 am
It's rather remarkable that they should be able to patent that. I remember toys that operate in a similar fashion. Pull on a string to get the mass spinning....
6926 Jorge Alves
jmralves Offline Send Email
Nov 1, 2004
11:58 am
I already try to connect two 3s Etec 1200mA together, both full charged with Etec Apache Charger. Guess what happen? In less than 30s, both packs became VERY...
6927 edie_currants Offline Send Email Nov 1, 2004
1:38 pm
... As a "line in the sand", check out the numbers quoted for "safe current capacity" in the Wiretronic calculator (available at http://www.wiretron.com/). In...
6928 lrk-torquemax@yahoogr... Send Email Nov 1, 2004
2:23 pm
CONTENTS * LIST ARCHIVE & SEARCH * MESSAGE DELIVERY OPTIONS * VIA THE WEB * POSTING TO THIS GROUP * CHANGING YOUR SUBSCRIPTION STATUS * RELATED GROUPS * HELP *...
6929 W.H. van Duiven
rcrobotics Offline Send Email
Nov 1, 2004
2:43 pm
Hi, I'm thinking of making a linear motor. I think the lrk priciple or any other brushless type can be use for this. Has anybody idea's or thoughts about this....
6930 Christo van der Merwe
skylarsa Offline Send Email
Nov 1, 2004
2:49 pm
If I changed to a dipole antenna on the Rx, what would the result be? How will range be affected? - worse, better?? Anyone with knowledge/experience of...
6931 don Matlack
dononerc Offline Send Email
Nov 1, 2004
3:44 pm
I am not sure but aren't dipole antennas highly directional? Don M. On Mon, 1 Nov 2004 16:46:49 +0200 "Christo van der Merwe"...
6932 Stefan Trethan
stefan_trethan Offline Send Email
Nov 1, 2004
3:49 pm
On Mon, 1 Nov 2004 03:57:09 -0800 (PST), Jorge Alves <jmralves@...> ... you sure you haven't connected them + to - and - to +? I will be hard to convince...
6933 Stefan Trethan
stefan_trethan Offline Send Email
Nov 1, 2004
3:56 pm
Ok, did some google... "Put packs together in parallel to combine discharge rates." , also sells parallel connector modules: ...
6934 Dan Clemens
dancy_1 Offline Send Email
Nov 1, 2004
3:58 pm
Is there any way to predict or calculate the efficiency of an LRK? I am building Ludwig Retzbach's "Test rig" and will be able to measure the efficiency but I...
6935 Jorge Alves
jmralves Offline Send Email
Nov 1, 2004
4:05 pm
Stefan, I put a picture of the setup i used to link both lipos in parallel, see for your self in the photoAlbums (jmralves), pic #3 I never try to connect the...
6936 Jorge Alves
jmralves Offline Send Email
Nov 1, 2004
4:11 pm
When i link the two packs together i was convinced the same as you, that it is possible, in my mind i still think it's possible, but i don't want to damage the...
6937 Stefan Trethan
stefan_trethan Offline Send Email
Nov 1, 2004
4:16 pm
On Mon, 1 Nov 2004 08:05:21 -0800 (PST), Jorge Alves <jmralves@...> ... hmm seems correct... I wonder what the problem is... Would be a good idea to use...
6938 Stefan Trethan
stefan_trethan Offline Send Email
Nov 1, 2004
4:20 pm
On Mon, 1 Nov 2004 08:11:04 -0800 (PST), Jorge Alves <jmralves@...> ... It is the only thing i can imagine. Maybe one must use empty cells or use a...
6939 Ron van Sommeren
ron_van_somm... Offline Send Email
Nov 1, 2004
4:29 pm
Goedendag Willy (no need for a ;-) emoticon this time) What will you be using the linear motors for? The SPS principle used in lrk motors, was originally...
6940 Ron van Sommeren
ron_van_somm... Offline Send Email
Nov 1, 2004
4:31 pm
Goedendag ;-) Måns and all, ... See http://www.tip.csiro.au/Machines/papers/iwscem/#11.%20%20REFERENCES Met vriendelijke groet ;-) Ron van Sommeren near...
6941 John Olsson
john_lssn Offline Send Email
Nov 1, 2004
4:36 pm
... Experimentalists. How much is the voltagedrop for 0.01, 0.1A, and 1.0A load? Calculate how much it's suposed to be for 100A! Try to measure that from any...
6942 Jorge Alves
jmralves Offline Send Email
Nov 1, 2004
4:38 pm
the main problem is that we never have lipos empty because of the safe discharge, that's why I tought to connect full charged packs, the only way to garantee...
6943 Christo van der Merwe
skylarsa Offline Send Email
Nov 1, 2004
4:41 pm
I don't know. That's why I'm asking. ;-) I'm willing to try anything to decrease antenna length while not sacrificing too much range. Christo ... From: don...
6944 Isaak Kaspler
ikaspler Offline Send Email
Nov 1, 2004
4:57 pm
Dipole antenna will be bidirectional like figure 8, max signal on top and bottom of 8 and no signal from left to right. _____ From: Christo van der Merwe...
6945 Fabrice ESTIVALS
lrk31fr Offline Send Email
Nov 1, 2004
5:22 pm
Hello, i use to fly with an "Azzar" antenna wich is only 20cm (7.8 inches) on my Zoom 400 (mini EP Heli). I made a lot of tests before flying and it's really...
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