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HedgeTrimmer Posted at 5-30 19:33
The work 120ccpm, Zbip57, Markforrester99, itcheyeblass, and you did all deserve acknowledgement.
RPM testing you guys did, resulting in comparisons between brand new MM's with factory installed blades, flown MM's with well used blades, and with kit spare blades; coupled to known science of prop lift (RPM, size, & pitch of Prop) - really help leed back to MM storage problem with cases.
@Hedge Thank you, I'm sure the others appreciate it.
@Hall
"You will also read that all was blamed on bad dji props bad batches etc, but we are now seeing same warnings and results with third party props, so does this mean that the manufacturing of third party props had also invisible damage."
1: It's been proven that props are deforming, weather it's the case, improper storage, from factory, or whatever else, we know that props are becoming flat and have shown via rpm information the lack of performance they have. I think it's safe to say that there aren't any bad batches, all the props for the mini are vulnerable to deformation.
2. DJI only recently has come out to identify issues with props, do you think if DJI only just came out with information that any 3rd party manufacture was aware of the issues with these props? Very unlikely, as the mini has been out for 7 months and many 3rd party accessorizes already exist and the first being props. So If these companies Cloned the props using the same measurements, weight, and pitch to produce these carbon copies they unfortunately they are going to be exposed to the same vulnerabilities that DJI is discovering now with it's 1st party props.
3. What invisible damage? Can you not visually SEE a flat prop? If the props has the incorrect pitch that means it's "damaged" because it's not going to perform like the other non deformed props. We have dozens of pictures now showing that DJI's own storage recommendations are incorrect and from people testing there own idea's have found that even storing the drone on a table exposes them to deformation.
What's the Solution you ask? Improve the design, or use a better material. DJI could shorten the props 1-2mm's to increase the rigidity of the props which will help hold formation, DJI could also add a little more material thickness to also help it resist deformation.
If we look at the Carbon Fiber props that exist, they are the same design as the plastics clones but are made from a better, stronger material that's less likely to deform and it performs near the same as the originals. If it wasn't for the Carbon Fiber these props to would be exposed to the same deformation as the original and 3rd party props, until one of these companies actually improves on DJI's design all replacements are exposed to same weaknesses and vulnerabilities.
Improved 3rd party options exist for the larger phantom/mavic series so it's only time before we see companies experimenting with prop designs for the mavic mini. If you're going to ask what improvements have been made by 3rd party I'll give you some examples, the material and pitch, some props performing much quieter the factory because they could remove some pitch at the cost of losing some thrust but people want a quieter drone so they are willing to give up X performance for noise benefits. Same but in reverse, some users wanted increased thrust and lifting capabilities so more aggressive pitched props were released that improve upon what the Factory props couldn't produce.
So if any of these 3rd parties are paying any attention at all we should be seeing V2 props that aren't exposed to the same vulnerabilities as DJI's are. |
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