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Old Feb 07, 2013, 10:52 AM
RC beginner
New York
Joined Oct 2008
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im also looking for a micro brushed differential setup but 30 bucks does seem slight overkill for aa level performance. almost worth moving up to those deltang units that have built in escs and weigh a lot less. im wondering if the servo boards would work better with a couple higher power fets wired in parallel. they only cost a dime ea at digikey.
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Old Feb 07, 2013, 11:38 AM
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Eugene, Oregon
Joined Apr 2009
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Quote:
Originally Posted by dave1993 View Post
im also looking for a micro brushed differential setup but 30 bucks does seem slight overkill for aa level performance. almost worth moving up to those deltang units that have built in escs and weigh a lot less. im wondering if the servo boards would work better with a couple higher power fets wired in parallel. they only cost a dime ea at digikey.
yeah almost, if DT sold just diff thrust rx for $29 ~ id buy 2, dont need outs. Rx and separate 2 esc gives me options. Be fun to fly any AA/AH/ITC plane dsm2, not many ppl interested in that To get diffthrust all you need is programing, rx and 2 esc.

servo boards = complicated, real esc = simple, alot more 'stuff' on the servo boards, im sure if we just removed/replaced a couple parts it'd work

EDIT: gonna get the b25 go diff thrust bl and control surfaces!
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Last edited by elvill; Feb 09, 2013 at 11:20 AM.
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Old Feb 07, 2013, 11:47 AM
RC beginner
New York
Joined Oct 2008
5,912 Posts
those are ridiculously overpriced for something that has $3 component cost. but when youre the only game in town...

i have aa powerhawk flying with turnigy 9x radio but you really got me inspired to do a wright flyer. not kit but from the ground up. your pics help a lot there. it would be way cool if i could build it small enough to fit in a backpack. im trying to work up enough courage to start a project like that. normally im not a big scale enthusiast but the wright flyer has alway been my favorite.
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Old Feb 07, 2013, 11:47 AM
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Canada
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Originally Posted by dave1993 View Post
i they only cost a dime ea at digikey.
Sure.. Once you reach their surprisingly high minimum order threshold and pay their shipping.
One could likely replicate the suggested setup :-)
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Old Feb 07, 2013, 11:51 AM
RC beginner
New York
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actually they list for like $.40 ea in the catalog but mouser sells then for $.11 so i got them to match. but youre right about the minimum and shipping. and tax. even though they dont have an outlet in my state they still hit me with 7%. guess thats why im such an ebay/china fanboy. but sometimes digi is the only source.
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Old Feb 07, 2013, 11:57 AM
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Eugene, Oregon
Joined Apr 2009
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amazing the control is ~ yoda
Dsm2 Wright Brother Flyer (1 min 18 sec)

34degrees out so only 3min runtime on 120

EDIT: after 8 packs -40% is spot-on, can 'waggle' the Wright back and forth, awesome control with super slow flyer will get gym video!
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Last edited by elvill; Feb 07, 2013 at 05:20 PM.
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Old Feb 07, 2013, 12:11 PM
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Eugene, Oregon
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Quote:
Originally Posted by dave1993 View Post
those are ridiculously overpriced for something that has $3 component cost. but when youre the only game in town...

i have aa powerhawk flying with turnigy 9x radio but you really got me inspired to do a wright flyer. not kit but from the ground up. your pics help a lot there. it would be way cool if i could build it small enough to fit in a backpack. im trying to work up enough courage to start a project like that. normally im not a big scale enthusiast but the wright flyer has alway been my favorite.
Good luck there are some very nice kit wright' out there for reference also. This Wright has 1mm foam wings, strong plastic cage supports, 2 6mm gb+spare props considering worth $30.
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Old Feb 07, 2013, 01:59 PM
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Eugene, Oregon
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here is the powerplant for the HK Wright #1
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Last edited by elvill; Feb 07, 2013 at 02:09 PM.
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Old Feb 07, 2013, 04:42 PM
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Eugene, Oregon
Joined Apr 2009
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Wright Brothers Diff thrust (0 min 22 sec)

still need to add black thread supports to cut down vibration
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Old Feb 07, 2013, 06:49 PM
RC beginner
New York
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Originally Posted by elvill View Post
Good luck there are some very nice kit wright' out there for reference also. This Wright has 1mm foam wings, strong plastic cage supports, 2 6mm gb+spare props considering worth $30.
im thinking i can build one for under a buck from bamboo, foam plate, and thread. probably keep all up weight under 10 gram. maybe even 5 gram with 4mm pager and this new rx idea i have. like i said, fit in backpack. i dont suppose you know of any 3 views. i did a search but looks like everybody used kits. cloud, guillows, hk, etc.
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Old Feb 07, 2013, 07:40 PM
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Eugene, Oregon
Joined Apr 2009
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favorite already

Just realized I can fly with one hand and film with the other! if I fly higher the trees will get me, no loops or rolls but
check how slow she flies just beautiful, WAAAYYYY more control than stock duration too. Classic; motors run smooth as silk no vibrations loads of power.

half throttle Wright climbs
over half throttle Wright nose forward faster
most flying in video is under half throttle

Wright Brother 1903 dsm2 (2 min 58 sec)

a most relaxing plane to fly
emergency landing ~ lipo left in the tank was gonna hand catch but realized I was holding the camera and could never film and catch.
Changed thread title to reflect giving up on the idea of using servo boards. If somebody wants to show us how to do it please feel free to post here. I have eight boards ready for conversion... soon becomes more cost effective to just buy 2 esc.
link to stock Wright - http://www.ebay.com/itm/1903-Wright-...10566049255%26

DBL EDIT: Servos to ESC would work in small single motor projects, wright demands exact motor control to fly correct, quite ambitious for servo boards with pots/resistors.
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Last edited by elvill; Feb 11, 2013 at 02:49 PM.
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Old Feb 11, 2013, 02:48 PM
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Eugene, Oregon
Joined Apr 2009
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Schematics for servo board driven Electronic speed control - Priced the different sets of mosfets ~ mj 11032, nte 2385, nte 2387, nte 2395, nte 2397

In stock local prices for the micro mosfets start @ 17.95!
Looks like I wont be purchasing parts as HK esc is only $10
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Old Feb 11, 2013, 03:45 PM
RC beginner
New York
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4 amp 2502 are about 25 cents ea in small qty from digikey:

http://www.digikey.com/product-detai...BFCT-ND/812502

2.5 amp 2302 are 11 cents ea from mouser and although digikey lists them for more they will match that over the phone.
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Old Feb 11, 2013, 06:39 PM
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Eugene, Oregon
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Originally Posted by dave1993 View Post
4 amp 2502 are about 25 cents ea in small qty from digikey:

http://www.digikey.com/product-detai...BFCT-ND/812502

2.5 amp 2302 are 11 cents ea from mouser and although digikey lists them for more they will match that over the phone.
Thanks Dave, exactly what I was looking for.

UNGN - really got this Wright dialed in ~ flies so slow, perfect control, graceful turns absolutely beautiful classic. Some of the most enjoyable flights ever. ROG so nice and clean off gym floor, flies slower than Night vapor. If you wanna 'get-rid-of' 1 of yours, I buy it ($30 for the airframe and motors) no tx needed ...convert it if I were you.

also be getting dozens of mosfets to play with... maybe send some your way once I perfect servo boards to esc
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Old Feb 11, 2013, 07:04 PM
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Southlake, TX
Joined Jan 2008
7,327 Posts
I guess I need to convert mine. What battery are you using?
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