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1
Français / Re: Présentations des nouveaux
« Last post by f5soh on Today at 10:23:36 am »
Bonjour Emilien,
Bienvenue sur le forum !

Laurent
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Français / Re: Présentations des nouveaux
« Last post by Emilien on April 21, 2019, 03:00:28 pm »
Bonjour à tous,
Je découvre ce forum en me lançant dans la réalisation d'un quad, équipé d'une carte CC3D Mini, d'un récepteur HK6S, de 4 moteurs BX1306-2300KV avec leurs 4 ESC 12A.
Mon PC est sous Ubuntu, j'ai installé LibrePilot et après quelques galères, je pense avoir réussi à mettre à jour le firmware de ma carte.
Elle est reconnue sur l'ordinateur et lorsque j'incline le drône, les capteurs répondent bien.

Mais j'ai l'impression que la reconnaissance est incomplète, je vais donc chercher des réponses sur ce forum, et éventuellement créer un nouveau topic si je ne trouve pas.

Bonne continuations à tous.

Emilien.
3
Italiano / Re: CC3D atom ar.wing PID
« Last post by Corrado-c on April 20, 2019, 08:40:08 pm »
eh si che questo modello è diù difficilino lho notato :)
comunque senza cc3d l'ho settato e fatto qualche volo, a parte i primi lanci poi è andata molto meglio.

(il simulatore per pc quale mi consigli? la mia radio si può collegare e usare al pc)

il problema grosso è nato con il cc3d montato, non riuscivo proprio a controllarlo, poi ho notato che le varie impostazioni erano basse e ho messo tutto quasi al massimo,
qualche volo poi son riuscito a farlo, anche un atterraggio morbidissimo  ...forse anche a culo :D
purtroppo c'era vento che cambiava continuamente e dopo aver potato un ciliegio mi son fermato prima di distruggere ancora l'aereo

ma andare proprio a tentativi non è il massimo,
sto cercando di informarmi ma tutte le guide  fanno riferimento ai multirotori
qualche consiglio sui valori di un ala fissa mi avrebbe aiutato molto.
capisco che il concetto dei pid è uguale... ma poi nella pratica, applicando quei consigli agli aerei non funzionano
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Vehicles - Fixed Wing / Happy Easter Flying
« Last post by karla on April 19, 2019, 02:11:01 pm »


This little chicken got a 20 min flight today :)
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Vehicles - Fixed Wing / Re: Differential steering on twin
« Last post by Penthane on April 17, 2019, 07:01:26 pm »
Thanks, I'll try this weekend (if the weather permits).
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Not sure what you mean by "calibration goes off"...

There are some things you should know:
- It's important that the trims be where they were when you did the transmitter wizard part of setup.  With battery plugged in, USB plugged in, transmitter on; in GCS go to Input page.  Make sure that your transmitter roll/pitch/yaw trims are set so that the sliders that show the stick positions are sitting on the neutral number (maybe bouncing a little above and below).  Leave the trims there.  Period.
- After that, it should be perfect in Rate mode.
- After that, yaw should be perfect in Attitude mode since it should be set to Rate or AxisLock.
- If it drifts in Attitude mode (no wind) you need to adjust Attitude ->RotateVirtual.  If it is drifting forward you subtract from pitch.  If it is drifting left you subtract from roll.
- You should set it on the ground when plugging the battery in.  You must set it on the ground when arming it.  Gyro biases are calibrated at these times and a human cannot hold it perfectly still enough for a good calibration.
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Hi, I am new to building quadcopters. I got a kit from amazon(huge mistake) and just finished building one but I am facing alot of issues regarding its flight.
Here are the specifications:
Frame- F450
Motors- A2212 1000KV
Flight control board- CC3D
ESC- 30A
Transmitter - FlySky FS-CT6B

Every time i fly it in attitude mode somehow the calibration goes off and i have to recalibrate it again. Doesnt happen in rate mode.
Here are two pictures which shows the problem.
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Italiano / Re: CC3D atom ar.wing PID
« Last post by TheOtherCliff on April 16, 2019, 05:38:38 pm »
Via Google Translate

L'imbardata non viene generalmente utilizzata durante l'impostazione del volo stabilizzato o autonomo di ala fissa (aeroplano) LibrePilot. Nemmeno per un aereo che ha una coda normale.

Il miglior consiglio che posso dare è quello di trovare un club locale e guardare e chiedere aiuto a un buon pilota. Sfortunatamente è più difficile volare su un velivolo stabilizzato rispetto a un quadricottero stabilizzato. Un aereo deve essere girato e atterrato. È anche più difficile installare un aeroplano stabilizzato.

Un buon consiglio: procurati un simulatore di volo per il tuo computer e una scatola trasmettitore USB economica per il simulatore. Ti aiuterà a imparare molto. Crash molte volte gratuitamente. :)

Per gli aeroplani, in genere inizio con la stabilizzazione disattivata (modalità manuale) e ottengo i tiri di controllo e i collegamenti corretti con i trim del trasmettitore nel mezzo (i trim nel mezzo quando è fatto è importante). Quindi aggiustalo (PID) quando voli in modalità Rate. Quindi aggiustarlo (PID) quando si vola in modalità Attitude (autolivellamento). Un principiante probabilmente preferisce la modalità Attitude perché si livella quando togli le mani dalle bacchette, ma vedi che Attitude è costruito al meglio su altre cose impostate correttamente. I trim del trasmettitore dovrebbero sempre finire nel mezzo quando si esegue la regolazione.

Inoltre, quel particolare modello non è così buono per un principiante assoluto. Più difficile da volare, più difficile da decollare (niente ruote, niente fusoliera per facilitare il lancio a mano). È meglio imparare un aliante lento come un aeroplano con molti diedri. Un aereo che può volare da solo quando non c'è vento è il più facile da volare.

Se puoi pubblicare in inglese nelle sezioni in inglese, avrai più persone che possono aiutarti. :)

---------------------------------------

Yaw is generally not used when setting up LibrePilot fixed wing (airplane) stabilized or autonomous flight.  Not even for an airplane that has a normal tail.

The best advice I can give is to find a local club and watch and ask a good pilot for help.  Unfortunately it is harder to fly a stabilized airplane than a stabilized quadcopter.  An airplane must be turned around and landed.  It is also harder to set up a stabilized airplane.

Also good advice: get a flight simulator for your computer and a cheap USB transmitter box for the simulator.  It will help you learn a lot.  Crash many times for free.  :)

For airplanes, I generally start with stabilization turned off (Manual mode) and get control throws and linkages correct with transmitter trims in the middle (trims in the middle when done is important).  Then get it adjusted (PIDs) when flying in Rate mode.  Then then get it adjusted (PIDs) when flying in Attitude (self leveling) mode.  A beginner probably wants Attitude mode because it levels out when you take your hands off the sticks, but you see that Attitude is best built on top of other things set properly.  Transmitter trims should always wind up in the middle when done adjusting.

Also, that particular model is not so good for an absolute beginner.  Harder to fly, harder to take off (no wheels, no fuselage to make easy hand launch).  A slow flying glider like airplane with lots of dihedral is best to learn on.  An airplane that can fly itself free-flight when there is no wind is the easiest to fly.

If you can post in English in the English sections, you will have more people who can help.  :)
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Vehicles - Fixed Wing / Re: Differential steering on twin
« Last post by TheOtherCliff on April 16, 2019, 04:46:21 pm »
The channels are supposed to be completely separate.  Yaw is designed to not affect thrust.  For yaw, the reason that one motor spins faster and the other spins slower is that that results in the thrust channel (total thrust) being the same.  It sounds like you would want to mix some throttle into your yaw so that if you yaw left or right you get reduced throttle too.

A better solution:
Also be aware that 16.09 has automatic headroom built in it.  In older versions it was required that you limit the throttle to 80 or 90 percent to leave a little room for control and stabilization when you had the throttle stick at 100%.  Now days the code is smart enough to reduce or increase the throttle when needed.  You can run both motors at 100% and when you give some yaw command it will reduce one motor.  Edit: For twins, the old code may seem the same as the new code.  You can set your throttle curve to run from 0% to 100%.  If you need +-5 differential thrust when using full throttle and both motors are at 100% it will reduce one motor to 95.  It will try to increase the other motor to 105, but it will clip at 100%.  This sort of does what you want, but note that you only get half as much differential as you asked for.  The old way was worse for quads though.  If the old stabilization had thrust at 95% and needed -5, +5, +10, -10 for stabilization it would ask for 90, 100, 105, 85.  The 105 would be clipped at 100 and the quad control/stabilization would not work perfectly.  The new way sees that it would clip the 105 down to 100 and so it reduces thrust (all motors) by 5 and so it DOES get the desired -5, +5, +10, -10 stabilization by running the motors at 85, 95, 100, 80.
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Hardware / Re: Mini Revolution headaches
« Last post by f5soh on April 16, 2019, 01:22:19 pm »
Hi,

You do no need a special firmware to load since the firmware files are already packed into the GCS.
If rescue works this mean bootloader is here and a simple Upgrade&Erase followed by a connect to the USB port does the job.

If the rescue do not work you can recover the board using DFU method.
SBL pads for RevoMini are located here :
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