I have used eCalc to calculate my quadcopter, but prior to going ahead with it I would like to hear your opinion. I would like to use the quadcopter to test my own control loops and I want the platform to be able to carry some weight (probably an SLR camera, additional batteries...).
Following are the parameters:
Number of Motors: 4
Battery: Zippy8000mAh 4S1P 30C
Motors: Turnigy G10-810 (810kv / 375W / 42A / 140g)
Here are the eCalc results:
Battery Max. Load: 18.1C
Flight Time Hover: 19.55 min
Add. Payload: 2638g
Find attached the PDF printed complete simulation.
What do you think?
Im in the process of building an octocopter with G10 810kv. They are awesome! Only thing is that they come with horrendous prop spinners. Im making my own for a smaller hub prop.
The G10s have a 5mm shaft. The prop spinners you get are half the size of the motors, with a shaft size of 8mm! I would imagine props that have an 8mm boss for the shaft would be alot bigger than 12 inches??? Yet HK recommend a 12x6 prop, but they dont have any that have a large enough hub size. *sigh* Irrespective of this the motors are magic! I tested one out a few hours ago, attached it to a plank, put the plank in the vice and all I had was an original 10x4.5 black arducopter prop, I balanced it, drilled out the hub to 8.2mm. Standing behind the motor (just in case the prop decided to disintegrate) I gave it full throttle! Even with a 10" blade, it felt like I was sticking my head out of a car moving at 70mph! And thats just 1! With 8, i think i might just sell my car ;)
Which ESC do you plan to use with the G10 on your quad ?
This is my bill of materials. ESCs are a little overdimensioned just in case I need it for other projects.
X frame in carbon fiber (custom engineered):
I bought the boom holders from ebay and I am looking for a cheaper solution for the motor mounts.
Power Distribution Board (custom engineered)
OSD (custom engineered)
OEM Camera (previously owned)
Motors and Power System:
4xPropeller adapter (TBD)
4xPropeller 13x4.5 (TBD)
Hey Javio, nice config, good efficiency. Try to lower the mAh for the battery and check if the flight time drops too much. A lower mAh will also be lighter. I'm flying a 1500gr quad with 3S 5000mAh with 2812 930kv motors and I'm getting about 10m hover.
I will try it, at the moment I am building the quad, I am waiting for most of the parts (I guess APM 2.0 is going to arrive on febrary-march). I am waiting for the boom holders in order to design the cnc machined center plates, the motors in order to find a solution for motor mounting, and so on...
Thank you very much for the info about the spinners. I was hopping that they come with 5mm shaft (the shaft of the spinner)... This is a real setback as far as I found 13x4.5 propellers for 5mm shaft. Fortunately I didn´t buy the propellers yet!!
as already told by Gareth Rens, the G10 comes with a prop spinner of 8mm!!! Any ideas about to mount a 13x4.5 propeller with this motor? Somebody knows a 5/5 mm prop spinner (5mm motor shaft and 5mm prop spinner shaft) or any other solution?
Thank you very much.
Also the hole in the prop hub is 5mm, im going to tap the prop using a 6mm tap.
Then the prop screws on and you put the nyloc on. No chance of anything coming loose.
Also there will be two grub screws to fix the spinner to the motor shaft.
If you like I can make 4 extra?
Oh yes, it is awesome!!! That would be great! Tell me what do you need or how much it will cost!
Thank you very much.
All I need from you is:
Do you want the shaft that the prop fits on to be 5mm or 6mm?
6mm looks better and is more substantial. What size are the holes in your prop hubs?
I'll charge you $5 / spinner. So it would be $20 for 4.
Also i need your address so i can get a quote on shipping.
Do you want fast shipping or slow shipping?