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This Vtail mixer be ok? https://www.hobbyking.com/hobbycity/s...idproduct=6321
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Here are the A4 tiles you requested.
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that V-tail mixer would work, but it only has 10 steps in each direction its junk.. good thing they were only 2.95. I used the GWS v-tail mixers, they have alot higher resoulution https://www.hobbyking.com/hobbycity/s...r_II_(200_step) |
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I'm using the DX7 too, I'm not aware of any diffrental throttle mix that mixes the throttle and rudder together? I only know of flaperons and elevons.
the higher end systems probibly do have diffrental mixing |
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nope, not at all, it flew fine without it, just dosen't hover as easily. |
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throttle / rudder mixing
First, your video is outstanding! Second, I have a question and need some help! I have a DC-3 twin with emax CF2812 motors, running two E-flight Pro 30 amp ESC.
I use a DX7 and I want to mix the throttle to the rudder, primarily for ground control, steering...no steerable tail wheel. Any ideas? I am not new at this, but new to the idea of throttle mixing. Quote:
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yup, it can be done but you need a V-tail mixer the DX7 dosen't have any type of throttle mixing, the V-tail plugs into the throttle and rudder. |
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Here's a case I suppose of "cheaper is better." I just made a dual throttle mix with rudder controlled differential thrust on my el-cheapo FlySky CT6A.
(But the bad part is that it takes all three available custom mixes, leaving none available for flapperons or even a fifth channel to activate the cargo door...So you do get what you pay for!) |
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After reading the DX7 manual (how I wish I could afford an actual DX7!) it seems to me that it should be possible to program dual throttles, and have a rudder controlled throttle differential. Using three mixes:
[PROG.MIX4] THRO -> GEAR RATE: 100% 100% SW:ON OFFSET: 0 (Note: This should give you dual throttles using the throttle channel and the gear channel.) [PROG.MIX5] RUDD -> THRO RATE: 20% 20% SW:GEAR OFFSET: 0 [PROG.MIX6] RUDD -> GEAR RATE: -20% -20% SW:GEAR OFFSET: 0 (Note: This should give you differential thrust of up to +-20 percent with rudder deflection, and the differential mix can be turned on or off using the gear switch. It is important for these last two mixes to use program mixes 5 and 6, because those are the only mixes that also carry the rudder trim button to the slave channels. If the differential thrust is backwards from the rudder, either switch the two motor channels or change the +20 to -20 and -20 to +20 in mixes 5 and 6. If more differential is needed, increase all of the "20"s to something higher.) Maybe someone who actually owns a DX7 could experiment? |
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John F111, I have the DX7, but I am a ways away from building this plane, and I am electronically DUMB, so how would I hook what up to what? Like right motor where, left motor where and rudder where. Maybe I can hook up some servos and try it out instead of motors?
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Page 66 of the DX7 manual shows a servo monitor screen, so you don't even need a plane or receiver/servos to test. Just watch the bar graphs of the appropriate channels. If the throttle channel and gear channel go up and down together with the throttle stick, mix 4 is working. If you have mid throttle set, and move the rudder, the two throttle channels should move, one higher, one lower. If they do, then mixes 5 and 6 are working. If they don't work, flip the gear switch and test rudder again. Easy! (...for me to say without even having the radio...) |
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