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Old Aug 17, 2015, 08:42 PM
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Originally Posted by bvrrocks5150 View Post
Did the orange heli fly okay? If it did, then problem may only be blue heli..... weak motor or something. I ordered the $5 circuit board assy for the Tx, it will probably arrive in a few days. Meanwhile...... I painted tail boom black.
Yes, the Orange heli flew perfect. It amazes me how you can put something away for awhile and then take it out to fly and it doesn't work properly. I'm glad that my hobby grade models don't do that.

I guess that the Blue heli can always be a parts heli. I might try a different motor and see if that makes a difference, but really don't feel like messing with these 3ch coaxial heli's. during this hot weather, maybe after it cools off in the Fall I'll give it a shot.

After painting the boom black, all you need is the carbon fiber looking side plates off of the S33 and put a red and black canopy on it and it would look like a 2.4Ghz S33.

J
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Old Aug 17, 2015, 09:01 PM
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Yes, the Orange heli flew perfect. It amazes me how you can put something away for awhile and then take it out to fly and it doesn't work properly. I'm glad that my hobby grade models don't do that.

I guess that the Blue heli can always be a parts heli. I might try a different motor and see if that makes a difference, but really don't feel like messing with these 3ch coaxial heli's. during this hot weather, maybe after it cools off in the Fall I'll give it a shot.

After painting the boom black, all you need is the carbon fiber looking side plates off of the S33 and put a red and black canopy on it and it would look like a 2.4Ghz S33.

J
I'm actually trying to get away from the " Syma " look. I have 2 Blades, 1 Yiboo, and the S033g. All have nearly identical Blade canopys on them now. Going for a "uniformish" fleet look. Observe resemblance in the two pics:
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Old Aug 19, 2015, 01:05 AM
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While I'm waiting....

While I'm waiting on the Tx board that's in transit........ I'm creating a Syma S107gSR. Yes, I mean single rotor. Mechanicals nearly done, may go to CF tail boom as its just a touch tail heavy at the moment and it needs a slight forward bias to work right. I'm going to use a 2.5 channel Airhogs Helicage IR system to run it (simple SR controls: throttle and tail yaw+trim buttons. Forward movement induced by slight forward CG.
This should be interesting.
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Old Aug 22, 2015, 05:57 PM
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Okay..... Dh-9118 Tx board installed, still no left. Changed L/R potentiometer and center trim potentiometer, still no left. Common denominator seemingly eliminated, maybe it's not the Tx. Seems both left and right MOSFETs get initial throttle signal and the heli will hover centered and stable, just not getting left turn signal to speed up top rotor. Bottom rotor speeds up on right turn. This is driving me nuts..... surely both Rx boards can't have same Problem connected to two different batteries and running two different sets of motors.
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Old Aug 23, 2015, 02:41 PM
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Now armed with an oscilloscope! Just got mine back that was at a friend's house. Will be tracing all PWM signals later this afternoon.
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Old Aug 26, 2015, 03:24 PM
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Not getting anywhere with the DH9118 radio/no left problem. ...... Thinking maybe a Blade CX4 3-in-1 ESC/gyro unit and a $30 Spektrum 4-channel radio and a small 10a car ESC for tail motor. Then I can use my DX4e radio.
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Old Aug 26, 2015, 05:50 PM
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Not getting anywhere with the DH9118 radio/no left problem. ...... Thinking maybe a Blade CX4 3-in-1 ESC/gyro unit and a $30 Spektrum 4-channel radio and a small 10a car ESC for tail motor. Then I can use my DX4e radio.
Trigger pulled: Cx4 3-in-1 ESC/mixer/gyro unit, 10amp 2-way ESC, 3s li-po, 3s charger.... $40. Gotta love EBay. All I need now is the 4-ch DSM2 Rx which I will get tomorrow. What's to loose? If that don't work..... I'll use the parts to build a plank.
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