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-   -   MicroSizer/Bit Char-G Plane/Other stuff (http://tinyrc.com/forums/showthread.php?t=20350)

MattPaintballer 10-17-2004 02:08 AM

MicroSizer/Bit Char-G Plane/Other stuff
 
I've searched Google, I've searched forums, and I can't find anything. I want to make a plane out of my MicroSizer... but I can't find out how! I also need to know how to do a multiple cell mod, multiple motor mod, MOSFET mod, and the Li-Po mod. I want to make a MicroSizer plane but I would like to put a FET stack on the PCB and use the fastest & highest torque motor possible. Is 4.2 the highest? (I know I've seen it somewhere... just can't remember where) I would also like to supercharge my MS Pro by adding a FET stack, Li-Po's atleast 2 motors, and maybe 2 or 3 cells. I searched so please don't tell me not to search!

nasphere 10-21-2004 03:30 AM

in reply to mat paintball guy
 
man it seem as tho these forums are dying down... probably cause school/college is back in play.

im working on a new controller using two 556 dual timer chips for proportionate steering/throttle, i hope it works... cause ive only got two cars and ones already scrapped. if this thing works it would be the most kickinest remote for even micro-flight.

i just need help designing the pots/switches used for em. i was thinking an old play-station joy stick should be the trick, but id rather have two sticks for better control.

if anyone has any suggestions here please help me out. i just got into this micro stuff a couple days ago so im kinda new with it all.

and i need a couple questions answered: are normal bits moddable to be a turbo car... i mean add a third chanel? and why are the bcg's still so expensive when the clones are around 5 dollars?

MattPaintballer 10-23-2004 02:00 AM

Okay... I need to know how I would go about doing this project. How many motors do I need? I think going with 4.2's... Okay so far this is what I know I need to do. Increase the range by removing the "cripple capacitor," wire up 2 or 3 4.2 motors, and add a steering mechanism. How do I make the plane steer if a BCG steers using magnets??? I still don't understand how to convert a magnet moving from side to side to a rudder, ailerons, flaps, and an elevator moving up/down/left/right. I just wish TinyRC was as active as Mini-ZRacer...

MattPaintballer 10-24-2004 11:38 PM

The post on the German website said that the owner of that Bit Char-G is running a carbon chassis. Does anybody know where I can get a carbon chassis for cheap, or like can I make one or something? Also it said he was running ball bearings. Anybody know where I can get/make those?

Bodie Jr 10-26-2004 06:26 PM

Here's a few links for you guys building planes using BitCar gear. I just flew my "BUMP" plane last night for the first time and it flies great. I modded a bit Rx with the drop-in replacement Mosfet and used an N-20 motor with a GWS 2.5 x 1 prop. 144 Mah Lipoly cell and I made my own actuator for rudder. I've got 10$ in the plane.

AUW is 23 grams. And here's the links. Lots of info here.

http://www.rcgroups.com/links/index.php?id=4392

http://www.rcgroups.com/forums/forumdisplay.php?f=85

http://www.rcgroups.com/forums/showthread.php?t=225017

MattPaintballer 10-26-2004 08:05 PM

Thank you. Nice video! I was thinking of using a 4.2 high torque motor (I don't have a pager, I will be ordering 4.2's anyways, and I don't want a pager) So would a 4.2 work? And where can I get LiPoly's that small and chargers?(hopefully for tiny and bigger LiPoly cells) And how do you get an actuator to work? All I know is that you wrap copper wire around something and like you glue it every X amount of wraps, then once the glue is dry you take out the little thing you wrapped it around. Then somehow a magnet goes in between it and this is the point where I get lost because of breif descriptions...

Bodie Jr 10-26-2004 08:39 PM

Here's actuator basics.

http://www.rcgroups.com/links/index.php?id=4051

Here's parts and batteries.

http://www.eflightdesigns.com/index.html

Doing these indoor planes takes lots of research. Probably all the info you need can be had @

http://www.rcgroups.com/forums/forumdisplay.php?f=85

You'll have to use the search function to find what you need.

MattPaintballer 10-27-2004 07:16 PM

I was reading something on motors, and it said that the 4.2 motor's torque was 39 newton per meter... what does that mean? And weirdly, the 3.8 motor had lower torque, 35 newton/meter... What do these numbers mean?

Bodie Jr 10-27-2004 08:47 PM

The 4.2 has more power than the 3.8 is basically what those numbers mean.

The best choice of motors in respect to indoor planes and bit gear is probably the 4.5 ohm 6mm didel pager motor.

nasphere 10-28-2004 12:15 AM

where is it you get the props? and how do you mount them to the motor?

MattPaintballer 10-28-2004 10:18 AM

Bodie, there is no way I am getting a pager motor. I don't want a pager, I have no use for a pager. Is a 4.2 or a dual 4.2 enough to fly the plane pretty fast?

Bodie Jr 10-29-2004 10:37 PM

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Here's a few pics of my plane using bit radio electronics. Built from plans at E-Flight.

Bodie Jr 10-29-2004 10:39 PM

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Bodie Jr 10-29-2004 10:39 PM

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Bodie Jr 10-29-2004 10:40 PM

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Bodie Jr 10-29-2004 10:41 PM

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nasphere 10-30-2004 08:26 PM

hey bodie,
nice plane!
i was wondering, do you have 4 AA batteries in your controller? And if so did you mod the electrics? And what did you use for the fuselage, wings, and prop?

Bodie Jr 10-30-2004 09:43 PM

The extra pack attached to the back of the receiver is the added 2 cells making it a 4 cell Tx.

I replaced the transistors of the right/left outputs with mosfets capable of handling 1 amp which is used to power the motor.

The existing forward/reverse outputs are used to drive the actuator.

The airframe is made from 2mm depron foam. Plans came from E-Flight.com.

The prop is an GWS 2.5x1 of which can be bought here.

http://www.eflightdesigns.com/cgi-bi...cts.cgi?CAT=22


All info is in the links I posted earlier in this thread. All the needed information is in the links I posted if one wants to research it as I did.




Mainly this one, of which I will post again.


http://www.rcgroups.com/links/index.php?id=4392

MattPaintballer 10-31-2004 02:33 PM

Somebody over at ausmicro said that 39 newton per meter for a bit-sized motor was bs, and that a 500cc motorbike engine would be expected to put out that much torque. I have no clue what these numbers mean, and would like to know if 39 newton per meter is too high for a bit-sized motor.

Bodie Jr 10-31-2004 04:54 PM

You may be able to find the conversion factors here.

This site comes in handy.

http://www.onlineconversion.com/

rs2000 12-02-2004 03:32 PM

OK, either the people that told you that were wrong, or they were telling you the scale power of the motor? lol, just a guess :rolleyes:

EDIT: Ok, nvm, i just found out that 39 newtons = about 9 pounds of force, but newtons per meter? hmm


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