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I well researched question posted to a forum c/w all required background data will generate one excellent answer to your question..... Ambiguous questions create confusion, many more questions, and most often..... misleading answers if any at all. The F550 was developed to accomodate a wide...

While that would be possible the best solution is to use a disc that fits tightly into the existing arm circular recess. Tthen fix a point on the template disc to prevent it from rotating aligned with one of the existing arm mounting holes. In this way the new mounting hole positions are...

The PMU shown on the top front of your 1st photo is definitely the one that comes with the NAZA....... If that is the only one you are using you will have issues especially at colder temperatures. The one that comes with the WKM is a square alumimum one and it is superior to the Naza one.

Many answers to your questions here: http://www.multirotorforums.com/showthread.php?10092-My-F800-quot-Finger-Snapper-quot If you don't already have the Aeroxcraft gear/gimbal you might want to consider the clone S800 landing gear also sold by RCTimer...

Obviously much larger motors can be used for the RCT800...... In my opinion the newer pan motor designs which have a larger radius but can be much shorter. Larger radius provides more magnetic torque for larger props.....Turnigy Multistar 22 pole for 4S motors or Sunny Sky if you want to spend...

See attached photos...... One inner hole is drilled to prevent the template from rotating and falling out. Once you have the disc template made..... the process of completing remaining tasks moves along very fast.....

The RCT800 arms are extremely solid and inflexible..... no concerns there. I have two F550's one with Naza.... other with WKM.... There was no original intention to emulate the S800.... just kept upgrading F550 parts and voila...... a near clone to the S800.... but with more limited AUW. The...

Here is my RCT800 c/w the clone S800 landing gear...... will add the rest asap including Hero GoPro3 Black and/or other larger camera. Might shorten the landing legs a bit since I may remain with smaller, lighter cameras. Accomodating the RCT800 arms for S800 landing gear installation required...

Here is my RCT800 c/w clone S800 landing gear modified to fit the RCT800 arms (not an easy fix but worth it IMHO). Design intent is to remain with 4S batteries and not carry cameras much heavier than the Hero GoPro3.... Might try to add retractable landing gear kit later.

Here is my modified F550.... (still building) now an RCT800 because of the longer arms c/w cloned S800 landing gear modified to fit the new, longer arms.

Just search for the PoloLU RC switch for 3 and for 5 amp loads....... https://solarbotics.com/product/17677/

Looks great..... BTW.... DJI manual recommends the LK900 antenna be pointed straight down.....are you able to do this or are you flying it with antenna horizontal?

Looks great. I have two of the same server power supplies. Are the metal PS cases insulated/isolated from each other or bolted together?

You indicate that you are using the WKM but the photos also show the PMY that comes with the Naza........ are your using both PMUs? Seems to me that only the WKM provides the white LED warning flashes.

Measured both but forgot to write it down..... basically all DJI components will fit in between the two plates with the exception of the WKM's IMU which you can mount above or below these two plates.

I use MG Chemicals Urethane type conformal coating for electronic projects...... protects electronics from H2S and conductive dusts such as carbon fiber especially when moisture us present. There is an extensive article on on this forum how to apply it correctly to printed circuit boards without...

Assuming your MR records it's launch point and the pilot remains close to the launch point, RTH works extremely well and without risk of confusion.... just trust it to do the job! IOC...... is quite confusing such that it may not always work as you might expect it to...... if confused or not...

US businesses eager to increase sales volume on product shipped to neighbouring countries would be well advised to seriously consider more than one shipping service for their products. In the case of shipments into Canada, it is well known that one particular courier service charges an excessive...

WKM v 5.20 experiences More expensive IMU option As the Multirotor industry evolves to accomodate greater AUW - all up weights and corresponding larger motors with increased magnitude vibration issues, additional and unforeseen challenges seem to be appearing. If this is the case with DJI...