T E A M
I just converted my TRex250 flybarred to flybarless. My TRex250 is the only heli that I have that still in flybarred configuration. Now, it is in flybarless.
I'm using Skookum SK-360 as the flybarless avionics. The swash plate follower/driver is made from recycle back the original mixer from TRex250. I flip the linkage over (outside face in) because if I use normal configuration, the linkages actually hit the set screw for the hub to main shaft, when in full pitch.
The swash plate follower is lock by a shaft collar. I do not have 3.5mm collar so I just drill a bigger hole onto my spare collar instead. The collar also has 2 groove on it in order for the main hub guide pins to slide over.
I also choose trailing edge controlling because by doing so, to have +ve pitch, the swash plate is going downward. It has more room than going up.
The SK-360 is NOT permanently mounted in this heli.
Notice that the SK-360 is mounted on a detachable Hard Velcro type of lock. That mean, if I want to fly my other heli (flybarless or multibladed), I just detach it and place it in other heli (which also has hard velcro) and transfer/program that heli's configuration into it. I even DIY my own servo wires using computer "Ribbon" cable for this heli so that I do not have to detach the servo cable from RX to the SK-360. Call me cheap, but that is my initial design that I have in mine for quite some time already. I always thinking of creating a module in such a way u can unplug it and plug it into another heli.
So far all testing are done in living room. Initial stage so far is it is stable and should be flyable, but compare to stock flybarred, stock flybarred feels more stable that this configuration. That mean in order for me to make it eve more stable than flybarred, I need further tweaking on the the SK-360 or do something on the linkages (like some reduction mixer) or/and using more stiffer damper on the spindle shaft.
Another thing I feel that the RPM somehow become a bit higher than previous configuration. Maybe due to loose all those parasitic drags from the paddles.
"Now u see it (flybar), Now u don't" or "Look ma... no flybar!"
EDIT: Oh.. the linkage from swash plate to blade grip is from Mini-Titan. I just use the rod only. The round thingly linkage is from TRex250.
SH
I'm using Skookum SK-360 as the flybarless avionics. The swash plate follower/driver is made from recycle back the original mixer from TRex250. I flip the linkage over (outside face in) because if I use normal configuration, the linkages actually hit the set screw for the hub to main shaft, when in full pitch.
The swash plate follower is lock by a shaft collar. I do not have 3.5mm collar so I just drill a bigger hole onto my spare collar instead. The collar also has 2 groove on it in order for the main hub guide pins to slide over.
I also choose trailing edge controlling because by doing so, to have +ve pitch, the swash plate is going downward. It has more room than going up.
The SK-360 is NOT permanently mounted in this heli.
Notice that the SK-360 is mounted on a detachable Hard Velcro type of lock. That mean, if I want to fly my other heli (flybarless or multibladed), I just detach it and place it in other heli (which also has hard velcro) and transfer/program that heli's configuration into it. I even DIY my own servo wires using computer "Ribbon" cable for this heli so that I do not have to detach the servo cable from RX to the SK-360. Call me cheap, but that is my initial design that I have in mine for quite some time already. I always thinking of creating a module in such a way u can unplug it and plug it into another heli.
So far all testing are done in living room. Initial stage so far is it is stable and should be flyable, but compare to stock flybarred, stock flybarred feels more stable that this configuration. That mean in order for me to make it eve more stable than flybarred, I need further tweaking on the the SK-360 or do something on the linkages (like some reduction mixer) or/and using more stiffer damper on the spindle shaft.
Another thing I feel that the RPM somehow become a bit higher than previous configuration. Maybe due to loose all those parasitic drags from the paddles.
"Now u see it (flybar), Now u don't" or "Look ma... no flybar!"
EDIT: Oh.. the linkage from swash plate to blade grip is from Mini-Titan. I just use the rod only. The round thingly linkage is from TRex250.
SH
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