Recent content by dotrick

Yes, I did some tests but the measures were difficults. With a camera it's a good idea but I don't have good stuff to do that. I think i will do that with the CA output. I will use this excel file to measure drag coefficient ...

:( I have a new setup. A 18FET from LYEN. I did a test at 90A (Ibat) and 270A(Iphase). My battery 24s3P was full at 99V. The new top speed is 99kph, it's good! :D

Two flats last week with my "Swalbe crazy bob"! :? I had 3 flats tyre in 2000km. The same thing each time, a small wire of steel, like a staple. The Kenda Kraze looks good for me... I will try!

Ok, good! :)

OK, solved! :D http://endless-sphere.com/forums/viewtopic.php?f=2&t=61961 Thank you!

Hello, I bought a 18FET LYEN Controller but the max current was 45A instead of 65A. I use the CA V3, the 18 FET Lyen - EB318 -AS-3, the TC100 Crown motor. The throttle is connected to the CA. See below CA measures and configurations I already asked some questions in this thread ...

I tried EB218 and EB318... No response with Xpd Software. I took a look with my scope. The baudrate change, It's not a problem of the XPD software. I will create a new post because I think i's not a problem of XPD. I resolve my problem errno14 : I replace the folder xpd-3.3.0 by xpd. Now, I...

Thank you NeilP :wink: Yes, I disconnected my conroller from battery. No, I have the CA, no switch. EB2xx and EB3xx... that is the question :D How can you recognize them? I read the first page of this thread, EB2xx baudrate 9600, EB3xx baudrate 38400. Ok, but i'm not sure of my cable and my...

Hello, I'm trying to use XPD... 1 : I don't know the reference of my 18 FET controller. I bought it few weeks ago.The reference is 184110ST -MII - LYEN Edition. 2 : I can't save a new configuration : Failed to save profile, Errno 13 Permission denied... I have the admin rights... 3 : I'm not...

News! :D I would like to know the torque of my TC100 motor but I have some doubts about the torque of the datasheet... :roll: I don't have a torque meter, I did some tests to measure acceleration and after I can estimate the torque of my motor. Three tests, 0-50kph and about 7.0s - 7.5s. I...

:shock: It's not a toy? a real helicopter???

It's more difficult than I thought! :? Example for a Slot area of 10mm x 10mm : Wire diameter : 1.414mm / 2mm Nb wires / slot : (7x7=49) / (5x5 = 25) Lenght : 20 m / 10 m R windings : 0.22ohm / 0.054ohm Current : 50 A /...

@miles : I'm not absolutely sure but I think generating a given torque will create less copper losses with more turns. If you make motor with more turns you have more FEM... But you have to choose a Controller with high voltage output (more than FEM) to manage you motor. :? @fdracing : What is...

me too... :? If you increase the turns by 2x, you increase the FEM and the torque x2. You can decrease the current by 2x. The efficiency would be better. You have to check if you have enough space to do this... :?

92 it's not a number... 95 it's a target! :D If you want to improve the motor efficiency, you have to use laminations (M19 steel for example). For same stator size, the torque with stator lamination will be 2x than PA66. If you want the same torque, you have to double the turns for PA66, it...