Polydrone
23 Oct 2020 19:51 - 23 Oct 2020 19:51 #1
by admin
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
Polydrone was created by admin
This is my act of committal, now that i have started this here, I will have to finish it.
I know we don't really do drones here but hey-ho, I'm admin
and you lot are now my only source of knowledge.
Sorry Klippy if I've put it in the wrong place, slap my wrists and let me know where / if I need to move it.
I'll start with just a few pics of where we got up to and the mess he's left me with. The selfish bar-steward.
Funny story to these ESC's.
Dad had been working away wiring up the power board. When I came to visit he was excited to show me his workings.
"So i've wired this through here, then onto the control board. Here look..." -
*plugs in LiPo*
The control board lights up and seconds later an ESC is smoking worse than Dad did. "SHIT!"
He hadn't connected the ESC's to the motors yet and the exposed end were touching
Just goes to show. No matter how experienced you are - a big mistake is only a little bit of over excitement away.
I know we don't really do drones here but hey-ho, I'm admin
and you lot are now my only source of knowledge.Sorry Klippy if I've put it in the wrong place, slap my wrists and let me know where / if I need to move it.
I'll start with just a few pics of where we got up to and the mess he's left me with. The selfish bar-steward.
Funny story to these ESC's.
Dad had been working away wiring up the power board. When I came to visit he was excited to show me his workings.
"So i've wired this through here, then onto the control board. Here look..." -
*plugs in LiPo*
The control board lights up and seconds later an ESC is smoking worse than Dad did. "SHIT!"
He hadn't connected the ESC's to the motors yet and the exposed end were touching
Just goes to show. No matter how experienced you are - a big mistake is only a little bit of over excitement away.
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
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23 Oct 2020 19:58 #3
by paul d
balsa is best.
Replied by paul d on topic Polydrone
Bloody Phil! has left no space for the fuel tank! 
balsa is best.
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23 Oct 2020 20:21 #4
by Eric
if you are calm and collected when all about you are going berserk - you've missed something important!
Replied by Eric on topic Polydrone
Trying to start four engines is a pain, too! One is bad enough! ![[badass]](/media/kunena/emoticons/bad_boys_20.gif "[badass]")
I think you are meant to have a very long silicon tube, and leave the fuel tank on the ground, so you can see how much is left.
I think you are meant to have a very long silicon tube, and leave the fuel tank on the ground, so you can see how much is left.
if you are calm and collected when all about you are going berserk - you've missed something important!
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23 Oct 2020 20:48 #5
by paul d
balsa is best.
Replied by paul d on topic Polydrone
No Eric, silicon is no good with diesels ( surely that's what Phil planed to use?), Mike, if you need a hand with this project I'll volunteer to make the fuel tank, got a lovely mustard tin here
balsa is best.
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23 Oct 2020 21:02 #6
by Eric
if you are calm and collected when all about you are going berserk - you've missed something important!
Replied by Eric on topic Polydrone
I know that cheap plastic fish-tank air-line is melted by diesel (and petrol). ((Guess who drained a small petrol tank into a plastic measuring jug - once! The bottom is still glued to the concrete floor!)) 
Trouble is, you can't really go into a pharmacists, and ask for 100 metres of small bore rubber tube! You're liable to be arrested!
Trouble is, you can't really go into a pharmacists, and ask for 100 metres of small bore rubber tube! You're liable to be arrested!
if you are calm and collected when all about you are going berserk - you've missed something important!
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23 Oct 2020 21:47 #8
by Quorneng
Replied by Quorneng on topic Polydrone
I believe some of the bigger 'commercial' quads do use separate ESCs but then most of quad accidents so far recorded by the AAIB have been through an ESC failure!
I suspect that unless you use 'quality' ESCs I would take Klippy's warning about different throttle start points seriously.
Even on my small one with a combined ESC they do not all start together and rely on the gyro to keep them in sync when under power.
Furthermore if you close the throttle too far to let it descends rapidly the fact that some props are spinning faster than others and with so little power the gyro can do nothing about it, means it 'tumbles' rather than just sinks.
What is amazing is just how much lift the big quads have using big batteries even by plane standards and a duration of an hour is not unknown. This suggests their prop efficiency is on a par with that of the average plane's wing.
That's about as far as my knowledge goes. Programming an Arduino flight controller is quite outside my ken.
I suspect that unless you use 'quality' ESCs I would take Klippy's warning about different throttle start points seriously.
Even on my small one with a combined ESC they do not all start together and rely on the gyro to keep them in sync when under power.
Furthermore if you close the throttle too far to let it descends rapidly the fact that some props are spinning faster than others and with so little power the gyro can do nothing about it, means it 'tumbles' rather than just sinks.
What is amazing is just how much lift the big quads have using big batteries even by plane standards and a duration of an hour is not unknown. This suggests their prop efficiency is on a par with that of the average plane's wing.
That's about as far as my knowledge goes. Programming an Arduino flight controller is quite outside my ken.
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24 Oct 2020 01:31 #9
by THE BLACKBIRD
Replied by THE BLACKBIRD on topic Polydrone
Dont do drones ? you dont do railroads but you got one
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27 Oct 2020 20:46 #11
by admin
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
Replied by admin on topic Polydrone
He's also popped the data wire out of the ESC plugs and tucked the rest away nicely. I'm guessing he means we only need the yellow.
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
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27 Oct 2020 20:52 #12
by admin
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
Replied by admin on topic Polydrone
As far as I know.
These should go in 1 to 4
I kinda want to keep this as plug and play as possible so the next job will be to find where the heck he stashed the pins to solder onto the board.
These should go in 1 to 4
I kinda want to keep this as plug and play as possible so the next job will be to find where the heck he stashed the pins to solder onto the board.
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
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27 Oct 2020 21:55 - 27 Oct 2020 21:55 #15
by admin
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
Replied by admin on topic Polydrone
And that is why i need you guys.
"most people give up just as they're about to succeed" Napoleon Hill
"luck is when preparation meets opportunity" Oprah Winfrey
Please Log in or Create an account to join the conversation.
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