SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
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Old Nov 18, 2012, 04:52 AM
Fear me, I'm a space-duck.
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Nederland, GE, Wageningen
Joined Nov 2011
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I also found this link for small batteries: http://www.atomicworkshop.co.uk/cata...index&cPath=65
Seems like they're selling pretty much the same stuff, but still. It may be usefull for someone.
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Old Nov 18, 2012, 09:04 AM
Micro Jet Pilot
Chris T's Avatar
Joined Jul 2005
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motor is running

2 x 10mAh (2p)

Prototype of the servo is running fine too...


Chris
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Old Nov 18, 2012, 09:53 AM
Flying Dutchman!
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Nederland, FL, Emmeloord
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Whats your disign of your servo chris? Are you using hall sensors?
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Old Nov 18, 2012, 03:16 PM
Team30 Micro EDF
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Adelaide, Australia
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I know how small that board is and it makes the model look tiny Chris!
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Old Nov 18, 2012, 08:09 PM
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Carbondale PA
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Chris,

Your model is looking beautiful! Looks like two cells are the way to go with the small motor. Can you make your controller work with a DT receiver running two cells?

Joe.
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Old Nov 18, 2012, 08:25 PM
Montreal, QC, CANADA
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this is amazing! I cant wait to see a video of you flying it!
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Old Nov 19, 2012, 01:55 AM
Team30 Micro EDF
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Chris, where should we post about single phase motor tuff from you and the likes? New thread?... or is there one cooking already?
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Old Nov 19, 2012, 02:42 AM
Micro Jet Pilot
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Dave, you guys can post results with the c3blc1 here or in a dedicated thread, I don't care. Maybe post first tries here and when it comes to characterization, we start a new thread to keep the information together. There is no extra thread yet.

Chris
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Old Nov 19, 2012, 02:53 AM
Micro Jet Pilot
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Joe do you mean 2p or 2s? 2s wouldn't be very suitable in my eyes. The servos/actuators should run on full supply voltage not on BEC. Also a lot more parts would be reqired to handle 2s I think. 2p is of course the same as 1p.

Since the DT rx can handle up to 10V, I assume there is a BEC LDO on it and it will provide 5V to the servos. You could plug a motor this 5V supply, but then would have big losses due to the voltage drop in the LDO. I am not even sure if this is how the DT rx works, but this is not a good option anyway. I'd say get it layed out for 1S xP.

Chris
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Last edited by Chris T; Nov 19, 2012 at 03:26 AM.
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Old Nov 19, 2012, 03:26 AM
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Carbondale PA
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Ok Chris, I see what you are saying. If I can get the power out of one 20 cell, I will go that way as it will be the same weight as the 2 -10mAh cells.

Joe.
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Old Nov 19, 2012, 04:20 PM
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Oak Ridge, Tennessee
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Hi Chris-

The new controller came in today's mail- many thanks!

I will try to test it soon and will post the results here.
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Old Nov 21, 2012, 01:52 PM
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Oak Ridge, Tennessee
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Chris-

Just to be sure- the wires connect as in the photo below? I don't want to make a mistake on your very nice work!

Also a couple of photos showing size and approximate weight for those interested.
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Old Nov 21, 2012, 02:41 PM
Micro Jet Pilot
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as I said: red is black and plus is minus

Yes your assignment is correct. And power supply is single cell lipo (3 .. 4.2V)


Fire it up!
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Old Nov 21, 2012, 06:10 PM
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Carbondale PA
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Hi Chris,

I will be testing mine with a DT receiver, and I also don't want to mess up the wiring. Is the wire for throttle control connected to the brushless output on the receiver marked Ch1, or should I connect it to the - motor pad which goes right to the FET?

Connect the + and - as shown in Shagrug's photo right? + is red as shown, and black is -?

Joe.
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Old Nov 21, 2012, 07:23 PM
Team30 Micro EDF
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Adelaide, Australia
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Chris,
can the length of all the wires be changed without affecting the cct? I'd be keen to mount mine on the DT board myself to make a brick. Any probs with RF interference any where?

Joe,
I have mine running but it needs more copper. I've managed to squeeze smoke out of both the motor and the board but they have survived my onslaught so far!
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