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Found 3 results

  1. Hello guys! I have a problem and I hope you could help me. Didn't know where to go to ask a question so I turned on you. I have Wizard220x bought it from a firend worked perfectly. It was very dirty so I took it all apart, cleand it and assemble it all together. First test right after was great esc beeped and motrs were spining. Took it to the field and there I incounterd the problem. When I pluged the battery esc did just the first set of beeps and then they started beeping like crazy. Motor were spining randomly and uncontrollably. Couldn't even bind to my controler. It was realy dangeruos and it happend a fiew times after that. Do you have any idea what could couse this problem. Thank you in advanced. P.S Sorry for my bad English.
  2. This is an interesting motor as a first entry as it bucks a few of the current trends in the dominant motors on the market. Review: The stator size is right in the middle at 2305, a bit smaller than the popular large motors, and a bit larger than the popular small motors. The weight is right in the middle as well, coming in at just under 30g. This seems to be a motor of the middle ground on just about every front, with a fairly large air gap, square magnets, and multi-strand windings. The shaft is retained with a c-clip, but it does retain the stronger single-piece hollow shaft design. The machining quality and smoothness of this motor are top notch, with excellent finishing and no play. Results The results here are reflective of the middle ground this motor seems to occupy; very solid performance, especially for the smaller stator size and conservative kV. The kV tested a tad lower than advertised coming in around 2390kv. One of the most noticable things about these results is the relatively flat performance across the range of props, only showing about 100g difference between the lighter 5″ props and the heaviest 5″ props. This is indicative of the larger air gap and shorter stator, where the lower torque loaded props respond well to the kV and the heavier loaded props bog the motor down a bit. That being said the performance here is very comfortably in the middle range, easily clearling 1300g on the mid to heavy load props, and staying around the 1200g mark even on the light props. It is also interesting to note that this motor barely got out of the low 30A range even on the heaviest props. It seems clear this motor was targeted towards that middle space of the average user, a pilot looking for a mid-weight motor that is usable on a broad range of props and a broad range of flying styles without being over-powered or killing the battery. This seems to have it the nail on the head for a general use, broad application motor that just about any pilot can find a use for. Tattu 2305 2450kv Test Full Results Tested KV: 2390kv Weight: 29.7g Stator W: 23mm Stator H: 5mm Test Environment: XRotor 40A ESC Timing: Med-high Dither: 7 PWM: Damped Light Venom 60A Power Supply 2Farad Caps x2 in Series Custom Datalogger TI TivaC Launchpad Allegro ACS758-200B Voltage Divider EagleTree eRPM Sensor Custom Thrust Stand w/ HX711 4 ms logging rate Atmospheric Data (Typical) Barometric pressure: 29-30 in Ambient Temperature: 70-74 deg F Humidity: 50-60% These are parts data of this test, to view more test data, you can click this link: http://www.miniquadtestbench.com/tattu-2305-2450kv.html Tattu quadcopter motors: https://www.genstattu.com/ta-motor-2305-2450kv-4pcs.html
  3. I have had my P4 for some time now and try to stay aware of how it's holding up. Wouldn't want an unnecessary crash. One of my rotors isn't spinning as effortlessly as the others when I hand spin them. This is especially true after I fly. It's like I can really feel each magnet as I spin it. This seems normal-ish with my other drones (S900, Runner 250, M100) but not the P4. Maybe it's a bearing issue? Could a magnet be loose? If it seems serious then I will probably replace the rotor but it flies fine.