Posts: 69 Threads: 27 Likes Received: 11 in 7 posts Likes Given: 1 Joined: Jan 2016 Reputation: 3 02-Nov-2017, 08:42 PM (This post was last modified: 03-May-2018, 10:24 AM by Oscar.) To New Pilots:
If your quadcopter/drone/multirotor is on your workbench with the propellers not installed, you will experience unusual sounds/shaking/movement and your motors will look broken.
DO NOT WORRY!
This is common and the reason for why this happens is because the motors and flight controller are expecting the propellers to be on. When you arm the drone without propellers installed, the drone thinks it is in the air with propellers installed. The drone does not know that it is sitting on a table so the motors begin to wind up as the drone is expecting the motors to be spinning at a certain rpm. This effect is amplified if you have AIR MODE enabled.
&tldr Install propellers and your drone should fly fine, if it does not. then you may proceed to post questions about troubleshooting the issue.
WARNING: Do not install propellers while the drone is on the bench. Go test fly the drone somewhere open and safe. Posts: 1,149 Threads: 50 Likes Received: 704 in 450 posts Likes Given: 1,189 Joined: Sep 2016 Reputation: 30 03-Nov-2017, 05:15 PM (This post was last modified: 03-Nov-2017, 05:17 PM by fftunes.) Just to add, it's also possible that the quad, while sitting on a hard surface, might receive additional vibration feedback or resonance which can especially result in motors stuttering.
Also be aware that all those symptoms (PID / noise effects) should not be present when testing motors via configurator motor tab only (not using the transmitter to arm/throttle up). Posts: 2,286 Threads: 38 Likes Received: 1,527 in 995 posts Likes Given: 1,881 Joined: Apr 2016 Reputation: 72 It's a fairly useful rule to say: Don't arm your quad on the bench.
The only time you arm your quad is when you are about to take off and fly. You don't need to test arming; it's a software function. If you have everything set correctly and have checked channel assignments and ranges in the receiver and modes tabs, then arming will work.
The Receiver tab is for testing the receiver, the Motors tab is for testing the motors (and ESCs). If the motors work fine in the motors tab, and your receiver works, that's all the bench testing that is needed which involves the radio and the ESCs/motors.
Maybe you might need to arm to test telemetry as it may not be active until the quad is armed, but if that's so then the only thing you should be testing is the telemetry function and not your motors. ![[-]](https://intofpv.com/images/collapse.png) • Posts: 12,099 Threads: 125 Likes Received: 3,739 in 2,836 posts Likes Given: 99 Joined: Feb 2017 Reputation: 388 03-Nov-2017, 07:36 PM (This post was last modified: 03-Nov-2017, 07:38 PM by voodoo614.) You should add that if you are using an analog ESC protocol (oneshot, multishot) , ESCs calibration is needed. If digital (Dshot), just put on props and fly. Is there any way to make this a Sticky? This question gets asked just about everyday. Posts: 2,286 Threads: 38 Likes Received: 1,527 in 995 posts Likes Given: 1,881 Joined: Apr 2016 Reputation: 72 (03-Nov-2017, 07:36 PM)voodoo614 Wrote: You should add that if you are using an analog ESC protocol (oneshot, multishot) , ESCs calibration is needed. If digital (Dshot), just put on props and fly. Is there any way to make this a Sticky? This question gets asked just about everyday. While I agree with the sentiment, I doubt the sticky would make any difference. First, you have to know how to search for the information you need. Not everyone knows how to search the Internet effectively and if you don't really know the question, it's hard to search for the answer. Some people are just plain lazy and ask questions without thinking that they may have been asked and answered before. A sticky won't change that. The only thing a sticky or FAQ tends to be useful for is so that people can post: "Did you read the FAQ?". Stickies and FAQs are like pets. If you make one, you'd better be prepared to keep it fed with updates and clean out the stable from time to time.  Posts: 5,315 Threads: 672 Likes Received: 3,155 in 1,743 posts Likes Given: 2,030 Joined: Jan 2016 Reputation: 139 i will stick all the useful posts for now so I can maybe make an index of FAQ later i think there is already one, and we can build on it. • Posts: 4 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 4 Joined: Oct 2017 Reputation: 0 mmh, I'd not recommend in a beginners section article where your "quad is on the bench" to put the props on and it should fly fine!
At least not in the same small post without mentioning - Never to put props on when "on the bench!"
Could be dangerous and needs constant reminder, especially beginners area. • Posts: 5,315 Threads: 672 Likes Received: 3,155 in 1,743 posts Likes Given: 2,030 Joined: Jan 2016 Reputation: 139 (02-May-2018, 08:39 PM)eCloud Wrote: mmh, I'd not recommend in a beginners section article where your "quad is on the bench" to put the props on and it should fly fine!
At least not in the same small post without mentioning - Never to put props on when "on the bench!"
Could be dangerous and needs constant reminder, especially beginners area. Just added a warning. Posts: 4 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Jul 2021 Reputation: 0 17-Jul-2021, 08:56 AM (This post was last modified: 17-Jul-2021, 08:58 AM by frozenliquidity.) Is this an example of this problem? New toothpick build after soldering motors on to pads (resistance for each shows about ~.6-.7 ohms on my not-so-sensitive DMM) and squeezing it all in the frame for the first time. https://drive.google.com/file/d/1A5i3gqB...sp=sharing This seemed to escalate when testing RX inputs, until it settled into this pattern. Quad was disarmed. • |
