tjdeerinck
Member
David, thanks!! Got the idea from your recommendation! Looking at my logs, motors are now more closely matched. I will balance the props and set gains this evening!
~T.J.
XAircraft SuperX
- Thread starter envy
- Start date
David, thanks!! Got the idea from your recommendation! Looking at my logs, motors are now more closely matched. I will balance the props and set gains this evening!
~T.J.
Finally stopped raining here in Florida so we got some flying in this past Sunday. I turned my friend on to the SuperX and he just put it on his TBS Discovery and has it dialed in pretty good. So here's a boring video of us flying this is Raw from the Gopro there is some Vibes in it but thats the FY-G3 2-axis gimbal dampeners I have the Stella on the way.
http://www.youtube.com/watch?v=FOHL3qi481w&feature=youtu.be
http://www.youtube.com/watch?v=FOHL3qi481w&feature=youtu.be
BB motor drive trace still shows a marked discontinuity between the CW and CCW groups. When the motors are true, the traces overlay each other for most of the flight.
The motors need to be level with each other first. Not level to the ground first. I haven't used a bubble level in years. I use a straight edge and make sure each motor is level with the ones next to it. Do this and your motors will spin at the same RPM on average.
Jeff
Posted using Tapatalk
Chad he really like the tbs with the supper x i was thinking to get qav 400 with sx. was it flying nice what did he have before the superx?
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tjdeerinck
Member
So I put Carbon Fiber Props on and aligned the arms with a level.
Prior to level: http://log.xaircraft.com/report.htm#2014_02_05_102855.250_33.1.08.11
After CF Props and level: http://log.xaircraft.com/report.htm#2014_02_05_102855.250_38.1.06.04
Motor outputs are way better, copter is much smoother with less fight, but vibration still seems a little much, does it not? Also, I am still getting a little drift on GPS hold if a move a bit and then release stick. Seems to want to move away from where it should hold. Any ideas?
~T.J.
Prior to level: http://log.xaircraft.com/report.htm#2014_02_05_102855.250_33.1.08.11
After CF Props and level: http://log.xaircraft.com/report.htm#2014_02_05_102855.250_38.1.06.04
Motor outputs are way better, copter is much smoother with less fight, but vibration still seems a little much, does it not? Also, I am still getting a little drift on GPS hold if a move a bit and then release stick. Seems to want to move away from where it should hold. Any ideas?
~T.J.
Much better on the motors. Check your radio and make sure you don't have any trim or sub-trim that may be causing the wandering.
Jeff
Posted using Tapatalk
X650Mouse
Take no prisoners
Did you balance the props, especially the hubs! I have not found any props yet that are balanced including the ones that say they are, maybe the T-props might be but at $50.00+ a pair a bit rich :upset:
David
I'm with you, I've yet to find a complete set of balanced props. I think I once got a prop that was perfectly balanced. Once. Maybe. And I probably broke it. :frog:
Jeff
tjdeerinck
Member
I balanced the props by sanding the back side of the heavy blade. Did not do the hubs.....does that really make a huge difference too?
~T.J.
~T.J.
Motopreserve
Drone Enthusiast
In the little time I've been at this, the imbalance of the hubs has usually seemed more out than the blade imbalance. Definitely worth checking.
If you want a perfect balance copter the hubs are the most pain to balance for me i either sand or use ca thick glue with zip kicker.Some time i don't balance the hub and not notice that much difference but better for the motor i think.
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X650Mouse
Take no prisoners
Stick the props on a good balancer 'Du Bro', and have them stand vertically, if they stand up then the hub is okay, you then move the prop to horizontal and if it stay there then you have a well balanced prop and it should stay still at any angle.
I have found the hub to be the most problematic and if I don't do that first then doing the blades goes out the window, bad if you have scraped or sanded to get a balance because you can't put it back!
What I also find if the hubs get done then the prop balance requires little attention, I have yet to find any props that don't require attention to the hubs, I use copper tape used for balancing motors, most hubs wind up with a lot of tape!
When I only did the props vibration improved but still not fantastic, when I started to do the hubs, which take a lot of time, the vibrations improved even more, so the hubs are definitely a factor in good flight.
I wish there was a manufacturer or hobbyist that would sell properly balanced props, they would have my money every time.
David
Motopreserve
Drone Enthusiast
I balance mine similar to David. I do do some slight balance on the blade and then quickly move to the hub. I also do a little Ca on one side, a jar of sanding on the other (usually there is excess material from the mold). Back and forth, occasionally checking the blades until I can leave them anywhere 360.
The hubs can be WAY out. The blades are usually less so for me too. I'm a wimp - so I don't sand, I just put scotch tape on the blades.
I started out with a TopFlite on recommendation. The prop stops that arrived were not true (sorta defeats the purpose). So I bought a Dubro. I like it better, but the base was not true. I can't win with this balancing
I did just turn a set of aluminum stops for the TopFlite on the lathe today - so between the 2 I should have a balanced prop in there somewhere....
The hubs can be WAY out. The blades are usually less so for me too. I'm a wimp - so I don't sand, I just put scotch tape on the blades.
I started out with a TopFlite on recommendation. The prop stops that arrived were not true (sorta defeats the purpose). So I bought a Dubro. I like it better, but the base was not true. I can't win with this balancing
I did just turn a set of aluminum stops for the TopFlite on the lathe today - so between the 2 I should have a balanced prop in there somewhere....
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kloner
Aerial DP
just keeps flying better & getting smoother with less vibe and closer but still not exact. this sure is a sensitive deal. i know for a fact there all less than .1 degree now, most less than .05...... time to break out a finer grit
http://log.xaircraft.com/report.htm#2014_02_06_082929.500_8.1.02.27
http://log.xaircraft.com/report.htm#2014_02_06_082929.500_8.1.02.27
kloner
Aerial DP
it's doubled it's efficiency since starting these adjustments
that's doubled for total measurement, the current sensor is on one of two packs. at 1:20 i realized the atti gain was down form flying another model that shares the dial.... once it cranked back up she really locks in
that's doubled for total measurement, the current sensor is on one of two packs. at 1:20 i realized the atti gain was down form flying another model that shares the dial.... once it cranked back up she really locks in
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kloner
Aerial DP
took this thing out about 5 lbs overloaded with a 17lb payload to see how she handled it and the throttle ranges came together closer, but still not dead on. From what i'm seeing on video and current draw, i'm pretty sure the residual counter level is preloading yaw...... never seen props in such unison
http://log.xaircraft.com/report.htm#2014_02_09_075341.250_9.4.00.39
thats running at a continuos 3 horsepower
here it was with nothing under it
http://log.xaircraft.com/report.htm#2014_02_09_075341.250_9.5.03.17
http://log.xaircraft.com/report.htm#2014_02_09_075341.250_9.4.00.39
thats running at a continuos 3 horsepower
here it was with nothing under it
http://log.xaircraft.com/report.htm#2014_02_09_075341.250_9.5.03.17
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Ok after testing in different parks and many flight times it's been almost 2 weeks since that glicth crash at ferry point and so far no glicth and no problems with my super x so that leads me to believe is the jamming from port authority center locate near that bridge. I been going there manny times before with my immercesion fpv which is band 4 and my futaba t8j i had no problems . Now i use band 1 for my foxtec goggles so maybe that the cause i will try to use band 4 and see what happens.Here what happen when you get jam.
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