3D Printed Quadcopter V 1.0
- Thread starter Andrea
- Start date
Yeah, that is the split, but I personally would not recommend it. The camera cable is not durable at all, and is known to be problematic. I've got 3, and none of them work any more. Runcam is coming out with a new 3S model which is available for preorder. https://shop.runcam.com/runcam-3s/
LB
Andrea
Member
So, little story, my boos asked to me to try the 3d printed drone and crashed it in 40 seconds.
Unfortunately he managed to kill one arm and the antenna.
This is my drone killed in the office...
However in the meantime i bought an frsky trasmitter (qx7s) and an RX4R receiver.
But after binding , my controller ( SPF3 clone) does not read any kind of signal from the receiver.
( I used S-Bus and followed a video for the connection,
)
Can anyone help to resolve this problem?
This is the receiver Map
This is the photo that shows the connection that i've done
this is a close up on the connection on the receiver
....
at least i've time to redo the battery compartment...
Unfortunately he managed to kill one arm and the antenna.
This is my drone killed in the office...
However in the meantime i bought an frsky trasmitter (qx7s) and an RX4R receiver.
But after binding , my controller ( SPF3 clone) does not read any kind of signal from the receiver.
( I used S-Bus and followed a video for the connection,
Can anyone help to resolve this problem?
This is the receiver Map
This is the photo that shows the connection that i've done
this is a close up on the connection on the receiver
....
at least i've time to redo the battery compartment...
Attachments
Hard to see the FC connections... Did you connect the receivers SBUS_OUT to a UART Rx on the FC? Also, did you enable Serial_rx on that UART in the ports tab?
kpixels
Antigravity or bust...
What is the "mAh" and the "C" ratings of your battery?
Andrea
Member
I am currently running with a 1500mAh 30C ( there is no much room left in the frame)
There is room enough for battery like this one:
https://costruzionedroni.it/sectorbat-graphene-4s-1800mah-75c-lipo
Last edited:
kpixels
Antigravity or bust...
I would probably start by upgrading to 4 cell with higher C rating at same mAh. Going from 3s to 4s at 1500mAh is going to add significant weight. In my experience using higher mAh can often be a wash as far as extra flight time due to the extra weight.
Afterthought; You could also try 1800 mAh with higher C rating and stay at 3 cell.
Afterthought; You could also try 1800 mAh with higher C rating and stay at 3 cell.
Last edited:
Andrea
Member
ok, i0ve placed and order for a 1800 mah battery 3s and 1500 mah battery 4s.
Meanwhile, i switched to 6 in prop, and i've added a buzzer on the board.
I got 10 minutes of flight time going around the garden.
Something strange happened, i did a fast turn ( after 2 minutes of flying), my voltage alarm start beeping and the motor stopped in mid air, then i crashed.
Did i miss something? I don't remember a disarm feature while the voltage is low...
could it be that 6 inch propellers draw too much current? ( i've the same setup on another quad but i never did something like that)
kpixels
Antigravity or bust...
Andrea
Member
I'm still waiting the battery, I used my old quad this weekend, and i'am printing some spare bodies.
I think is a battery problem, here is my explanation
( I'm gonna add some math )
Battery Capacity 1500 mAh
Battery Rating 30c
Battery Max Amp : 1500*30*10^-3=45 A
Motor ESC 35 A each
Motor Amps at 75% throttle =19 A ( i limited my throttle to 75 %)
Total Amps: 19*4= 76 A
Amps Delivery= 45-76= -31 A
So i think my battery rating are low and they don't provide enought amps.
The new battery will have 85 C rating
so 1.5*85 gives 127.5 A, I think that will solve the problem
Last edited:
Andrea
Member
I printed the arms to be the main frame, so they are pretty strong.
The battery bay, on the other hand, is the part that break in the crash because i made it light, it is only 2.4 mm thick
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