Slapped together a factory-fresh mini hex with HK APM mini + 3DR ublox, balanced the props, fired it up in the air and ran autotune, in a breezy day. Over tuned with the factory settings, but flying ok now - just needs a tweak here and there.
This is the result. Needs bit of D I think, to stablise it a bit. Maybe more aggressive control in pitch to stop the high frequency oscillations?
Will upload settings once I get home. 3.2rc7, factory fresh build.
Comments
I've got a modified Hovership (I just modified the structure to fit APM and Multistar 1704s and Afro 12As between the bottom two plates - also modified it to be a hexa). I made it into a hex so I can carry a gopro, but I haven't tried flying that yet. The motors heat up pretty bad when I have a gopro on it with a quad X config, gonna try the hexa soon.
I get around 5-8 minutes on a 1500mAh 3s with 5030x3 props. About 530g AUW with that battery. The motors get a little warm, but I'm not impressed with the power that I get, especially in "hard" turns. I switched to the 3 bladed props to get a bit more power, and it seems to help.
I also tried using a 4s which gives me a lot more lift and control in turns (but the motors heat up a bit - Hobbyking only rates them to 3s....). I wonder if I need to change the ESC timing for that? I'm thinking its the gains though, I just need some more time to play with them.
nice.
I'm interested to see how you get on with the multi-star motors. I did a few builds with them but a motor failed within the first few flights. I have had much better results (motor wise) with the RCTimer 1806 2300KV.
I have been using the FPV250v3 quad frame though. Might try with the Argonaut hex frame soon. Got to get back to some of the bigger builds.
What's misbehaving? What are you flying?
Hi DB,
- Multistar 2150's...the "mini beasts"
- AUW is 900g with a 2500mah 3S; less with a 1800mah.
- Flight time is around 8 minutes; I might go to 5040 or 6030 props to increase this.
- hovers at around 54%, according to APM's parameter. This is with 2600mah though - a 1800 or 2200 is the optimal.
Nice little bird. I just made a similar one and I'm wondering if she's misbehaving. A few questions if you don't mind:
Are those Multistar 1704 motors?
What's your all up weight?
What kind of flight time do you get and with which battery?
Thanks!
Well seems like a really good idea ;)
Because Switzerland.
Just wondering why there are no fences around that land. It seems recently mowed, but theres no fence or animals there.
Porn!
Settings after autotune. I think it needs a tweak, but it flies.
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