Gender
Male
About
Location
Holle (NI)
Please tell us a bit about your UAV interest
Have been flying RC planes long time ago (7 years or so) and am a tech geek so building a drone was actually rather obvious. :-)
Hometown:
Holle (NI, Germany)
Activity Feed
"Doing some basic calculations:
Formula: <Weight> * 100 / <Thrust at 100%> = <Hover Thrust>
Current X4:1800g * 100 / 2600g = 69%(vs. 65% taken from logs)
Planned X8 (best case / worst case):2600g * 100 / 5200g = 50%2600g * 100 / 4600g = 57%(vs. 5200g…"
Formula: <Weight> * 100 / <Thrust at 100%> = <Hover Thrust>
Current X4:1800g * 100 / 2600g = 69%(vs. 65% taken from logs)
Planned X8 (best case / worst case):2600g * 100 / 5200g = 50%2600g * 100 / 4600g = 57%(vs. 5200g…"
"I planned to use two batteries attached to the landing skids and use the battery compartment for some of the other tech. The clearance needed in the tray would be 25mm at least. 30mm would be better.
The 2212 motors with 9.4x4.3 give 650g thrust per…"
The 2212 motors with 9.4x4.3 give 650g thrust per…"
"I just tested the 10x5.4 blades with 3S and the motors are getting so hot the plastic in the motor mounts is melting. With the 9.4x4.3 original DJI blades (the ones used in the Phantom 2) there is no heat issue.
Anyways I decided to go a step…"
Anyways I decided to go a step…"
"No issues yet but I didn't really fly that long ranges. As a precaution I activated throttle failsafe should it run into trouble. But long range flights will have to wait until I have installed FPV (which is currently on my wish-list but will need…"
"The SBUS-2-CPPM adapter cable arrived. :-) Looks great now. The receiver fits in the ESC tray and is almost completely invisible now.
It looks so super clean now. Not like most copters one finds on the internet that have cables and cable ties all…"
It looks so super clean now. Not like most copters one finds on the internet that have cables and cable ties all…"
"After one of the original ESCs burnt I replaced the ESCs with a 25A 4in1-ESC and the hover throttle is now 60% at 3S and the small props. Looks like the 15A ESCs were too small which also explains why one of them went up in smoke.
I taped an old…"
I taped an old…"
"Good news is the new top speed in Alt-hold mode is now 61kph. Bad news is the ESCs I got in the kit with the motors were only 15A and one of them burned today taking its connected motor to the grave. Fortunately there was not more damage than the…"
"The 4S battery arrived and hover throttle is now almost exactly at 50%. Unfortunately the weather is so ugly at the moment it keeps me from testing if the new battery also impacts top speed. With the 3S the flight log showed about 50kph.
I will also…"
I will also…"
"I just ordered a bunch of 10x4.5 on amazon and a set of nuts that fit the CW/CCW threads on the DJI motors. 4S 3Ah battery was already ordered. I'll report back when I had the chance to test them.
My plan is to add more weight (speaking: a camera…"
My plan is to add more weight (speaking: a camera…"
"The props are 9.4x4.3. The % is the value I got from the flight logs (CTUN>ThrOut).
Also I can see that the copter is very slow at stopping descending:"
Also I can see that the copter is very slow at stopping descending:"
"Hi,
I just finished building my T4 quadcopter. I used DJI motors (920KV). I think they are the ones that are also used in the DJI Phantom. The copter flies awesomely stable and I'm very pleased with the first result. It even lasts 15 minutes on a…"
I just finished building my T4 quadcopter. I used DJI motors (920KV). I think they are the ones that are also used in the DJI Phantom. The copter flies awesomely stable and I'm very pleased with the first result. It even lasts 15 minutes on a…"
