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Roban B407 AeroMed 700 Size Scale Build
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PawPaw I really enjoy watching your progress, your final machine is shaping up to be very impressive. Nice to see your confirmation that the Roban fuselage didn't require any dremeling to fit your mechanics.
I'm curious, what was the cause of your initial lighting issue that you then solved? Interference, or loose wiring, or?Live Q&A every Tuesday and Friday at 9pm EST on my Twitch Livestream
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Thanks, Alpha! It’s inductance I believe. I had 2 LED controllers & 2 electronic receiver switches bundled adjacent to the ESC with intention to properly zip tie the wiring later. Once I separated everything away from the ESC the lights worked normally. Time to recheck insulation....
Yes sir, Roban hit the mark with these B407s. I’m a big fan of the Dremel, don’t get me wrong, but nice to see that not even a single control arm or pushrod slot was required on this bird. Even the doghouse flanges cleared the main gear with room to spare.
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Originally posted by PawPaw View PostThat’s interesting. I set 1300 for mine
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Thanks, lt1pwr....just received the 130mm Vario tail blades so will definitely start at the 1300. I’m finishing some plumbing items that require the mechanics installed then will get the test bed set up. I’m curious...did you use both of the plastic spacing plates under the rear frame mounts to get the main shaft forward tilt Roban calls out? I have both installed & the tilt looks correct per Roban’s illustration but that sure is a lot of angle! I did a quick blades-off CG check by simply hand lifting at the rotor head & appears the slight tail low attitude is more from the main shaft angle than offset weight.
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Man, it doesn’t get any better than that! Glad I didn’t glue my top spacer in..just figured something would change. I did see a video where the guy was having problems setting up his IKON’s auto level feature partly due to the calibration of the gyro’s static angle. Heli would drift backwards when he enabled the feature.2 Photos
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Well, took 1 of the spacers out & the mast angle looks a little better. It suits me, anyway. However, I did notice the tail gearbox has about 3/16-1/4” vertical play in the opening. Linkages clear all edges either way. I can see the foam torque tube spacer has the 3/16-1/4” gap at the top edge so one more thing to fix.
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Originally posted by PawPaw View PostWell, took 1 of the spacers out & the mast angle looks a little better. It suits me, anyway. However, I did notice the tail gearbox has about 3/16-1/4” vertical play in the opening. Linkages clear all edges either way. I can see the foam torque tube spacer has the 3/16-1/4” gap at the top edge so one more thing to fix.
By the way, what happen to the Cobra?
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I still need to mount mechanics to test stand so knew everything was gonna come apart later, and now my list of fixits is a little longer.
Cobra is standing by, on top of a china cabinet, awaiting my skill level to catch up. I guess I did ok with short low hover hops, but I need more 450 Huey time for confidence and just been neglecting to do so in favor of detailing the 407 in the a/c.
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Originally posted by PawPaw View PostI still need to mount mechanics to test stand so knew everything was gonna come apart later, and now my list of fixits is a little longer.
Cobra is standing by, on top of a china cabinet, awaiting my skill level to catch up. I guess I did ok with short low hover hops, but I need more 450 Huey time for confidence and just been neglecting to do so in favor of detailing the 407 in the a/c.
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Great news, DC...I’m a disciplined believer in “I can’t help it”. After all... Rules are for people who lack imagination.
That’s what I did, lt1pwr...had the foam spacer pushed too far forward & not glued in. Lotsa thanks for the frame spacer heads up as it now looks much better with the one in place & tail clearance didn’t suffer. BTW, check out this LifePak 15 cardiac monitor Tyler Gray did for me in 1/8 scale. I told him “Don’t worry about the face details too much”, but he didn’t listen.1 Photo
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