Thanks for giving your time you all…! Again good night… As it’s 3 a.m. here… Might be good morning/afternoon in your region…
Hello Rudraksh
unfortunately, I am a little frustrated by your questions.
Maybe I am wrong, and please don’t misunderstand me, I would like to help you.
But you lack some basic knowledge about RC systems and Ardupilot.
And you are not looking for the necessary manuals and documents for your systems. With their help, many or all questions can be answered. That must be your first homework.
You still have not understood the difference and the similarities between Kakute H7 and PixHawk 6c. Both use only one pin for the RC input. There must be a sum signal of all channels. This is a protocol. There are a whole range of protocols, including PPM, SBus; IBus… jPWM is not a sum signal, but only the signal of a discrete channel. The FC, whether Kakute H7 or PixHawk 6c or another hardware platform such as my ESP32, doesn’t really care about the protocol, because the software Ardupilot does that.
In terms of the RC input signal, this means that there is no difference between the Kakute H7 and PixHawk 6c. Ardupilot determines the protocol itself and behaves accordingly.
Set your transmitter back to the same settings as your old drone, connect the receiver to the PixHawk 6c correctly and see what it recognizes.
Actually, each and every information given by you in this message, I know all of that currently… I never knew this information some days ago… You also have to understand that I am a complete beginner. Just 3 weeks ago, Yuri sir told me what is ardupilot. My day by day progress in ardupilot is very less, as it’s just an hobby work… So how do you think I will be able to know all in just 3 weeks!? I never knew Any other ESC than SimonK, and in that also I never knew what does this term “SimonK” means!? I never ever knew what is ardupilot…
I never thought UAVs have progressed so much… With apm 2.8, It was just opening up mission planner, because a person on YT said so, and just do some Mandatory hardware, in 30 min, the drone is ready. Whole was just this for me before April this year…
My questions are not frustrating, they are just the normal questions which any beginner would ask!
I am reading documentations slowly but the growth will be gradual… Have patience… I will also grow…
@Juergen-Fahlbusch
Listen, since in my previous drone, I used plastic 10 X 4.5 propellers, due to the centrifugal force, they broke while spinning and drone crashed from 10m height! This happened many times…
And so this time I am using carbon fibre, but still afraid that what if I fly my drone upto 120m and at that height, carbon fibre also broke! Is my drone safe when I use carbon fibre props? Because motor RPM can go upto 10000 and the drone’s weight will also be 1100gm, so will carbon fibre be so strong that it will handle such conditions at 100s of metre height?!
Good quality carbon props only break when they hit hard objects.
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And good quality plastic propellers that have been properly installed don’t break from centrifugal force. If a plastic propeller breaks in flight it is either previously damaged, over torqued, or thread locking adhesive (loctite) has been used.
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But I was using newly purchased plastic propellers on 1000KV A2212 13T motors!? Might be the motors were not balanced and due to excessive vibrations the props broke?
Also as I read the “don’t use these components in Quadcopters” post, I see that you people never recommend any such golden motors…
But this time I expect that my motors will be balanced…
Although my Carbon fibre props don’t have a brand, but I tested them using multimeter, and these stone hard props conduct electricity with just 120 ohms of resistance from one to another end…!
That means that’s real carbon fibre!!
(BtW Very excited to see a real Pixhawk FC first time in life!!!)
Measuring the electrical resitance says absolute nothing about the qualtity of a prop. You don’t will use them as electronical part. So if there are some small hairline cracks, some imbalance or some aerodynamic failures you can’t detect with such a methode.
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Over the past two years, I have operated more than five Holybro X500v2 drones, and I have never experienced a propeller breaking due to aerodynamic loads during flight.
(Photo from the experiment)
The propellers did not fail even in a wind tunnel, where they were subjected to higher aerodynamic loads than in regular flight.
However, the traditional F450-style propeller, broke under less than half the load in the wind tunnel, nearly causing millions of dollars in damage. I also tried using carbon propellers with the same design as the one in the photo, but they tended to produce even more vibration than the plastic ones. In my opinion, purchasing components with balanced performance and price, rather than opting for the cheapest parts, will help avoid additional expenses and ultimately be more cost-effective.
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Yes you are really right…
I purchased these Props 10 X 4.5 and these are DJI style carbon fibre:
https://zbotic.in/product/1045-2-blades-carbon-fiber-propeller-cwccw-for-dji/
I also checked whether they are balanced, on a thin iron rod, and all the 3 pairs which I purchased, are totally balanced. So I don’t think they will cause vibrations. One of my friends also used them in his drone once, when I touched his drone while flying, it had very less vibrations, only minimal vibrations of motors. His props were also balanced…
Actually I was not measuring the strength, but I was checking whether it is real carbon fibre or not!? These propellers will absolutely not have any cracks as I tried bending them, but these are really stone hard… Not at all flexible like plastic ones …
The issue with DJI-style 1045 propellers is that the root area is too thin, making it difficult for low-quality plastic(most copy manufactures) to withstand repeated loads. Carbon propellers with the same design are free from this issue(assuming the CFRP propeller is well manufactured), so there’s no need to worry about the propellers breaking in flight.
Separately, the issue of vibration is a different matter. Due to the unique elasticity of CFRP, sharp vibrations can occur during high-speed forward flight when there is a lift imbalance in the blades. However, this problem doesn’t seem to require immediate attention. If the motor and propellers are balanced both statically and dynamically, it should not significantly affect normal flight.
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I have rarely received a set of props that were perfectly balanced, even good quality branded ones. How would I know this? By putting them on a proper Prop Balancer out of the box.
BTW-You don’t need to spend a lot of money on a Prop Balancer. I used a $10 mag balancer for quite awhile.
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See this:::
Similarly are my other 5 Propellers…
Ok they are?
My nearly empty pen’s refill and an old knife is just a less than 1$ propeller balance 
(Desi jugaad!)
(Indigenous cheap make do!)
Also, I have my drone’s battery delivered, so I storage charged it with my B6 LiPro balance charger, and since I will be completing this drone nearly 1.5 months later from this day, should I just storage charge it and just keep it in its box for 1.5 months? Wouldn’t it get puffed a little bit? Or should after every 20 days, I should again storage charge it?
According to chat GPT, I should just storage charge it and keep it… So I was also confirming from you?
Your not balancing the prop this way as your swivel point is out of the center
Please follow the instructions given by the other people in this forum. They are eager to help and really do have profound knowledge of ardupilot, avionics and all the other stuff that comes with it.
Best regards
Maarten
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Who knows. As @Turf1975 said that will tell you nothing. Buy one of these, they are cheap and work well enough.
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Ok, let my swivel point be out of the centre, but if the propeller was to be unbalanced, don’t you think that one blade will be continuously going downwards and the other upwards? But all of these propellers remain in this exact position of equilibrium. So, don’t you think they are already balanced if they are not showing any inclination in this setup ?
I don’t understand, why do we need a whole such thing for propeller balance? Why cant we just check that on thin iron rod kept horizontal? If propellers will be unbalanced, they will automatically incline?
Firstly I should ask the customer service of zbotic (from where I purchased these) , that they have already balanced them or not?