when armed drone climbs in altitude with my throttle fully down | Drone Community | Page 1

ruby prawn Mar 22, 2025, 5:40 AM

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I just built my new 4in fpv drone and I have a previses successful build but when I arm this one the drone rises and ascends without any inputs.

wraith ruin Mar 22, 2025, 5:41 AM

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maybe turn down idle rpm or whatever its called in betaflight

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is it shooting to the sky or just slowly rising

ruby prawn Mar 22, 2025, 5:42 AM

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I tried that and no change. slowly rising up with a bit of shaking.

wraith ruin Mar 22, 2025, 5:43 AM

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what have you got it set to?

ruby prawn Mar 22, 2025, 5:43 AM

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it was 5.5 and i changed it to 2

wraith ruin Mar 22, 2025, 5:44 AM

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yeah no that doesnt seem sky high to me lmao

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when did you last calibrate your radio?

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and if you have an trims set on it or anything, set them back to 0

ruby prawn Mar 22, 2025, 5:45 AM

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also it still works with my other 5in drone trim is 0

wraith ruin Mar 22, 2025, 5:45 AM

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hmm

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@jolly pilot you got any idea?

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sorry for the ping lmao

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just humor me and calibrate your joysticks

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also idk if having the stack mounted wrong might effect it, maybe check that too

ruby prawn Mar 22, 2025, 5:50 AM

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the stack is basically level and in the right direction. Is there any other things i should check for?

wraith ruin Mar 22, 2025, 5:51 AM

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tryna think of any, but i got nothing

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what size motors you using and what cell count?

ruby prawn Mar 22, 2025, 5:53 AM

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1505 and 4s

wraith ruin Mar 22, 2025, 5:53 AM

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yeah ok there should be no issues there then

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i think this is a betaflight thing not a hardware thing

ruby prawn Mar 22, 2025, 5:57 AM

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i did a small arm test on one frame then switch to another and this problem started. could this be the culprit.

wraith ruin Mar 22, 2025, 5:58 AM

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what frame you using?

ruby prawn Mar 22, 2025, 6:00 AM

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both frames are the same custom made 3d printed frame the first one was in PLA and the second one giving the problems is in PETG.

wraith ruin Mar 22, 2025, 6:01 AM

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ok thats the problem, 3d printed frames are generally troublesome at best, close on lethal at worse

ruby prawn Mar 22, 2025, 6:02 AM

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ok i will switch to a carbon fiber frame I have laying around to test

wraith ruin Mar 22, 2025, 6:03 AM

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yeah that will likely fix the issue, 3d printed frames are really only viable for whoops

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and even then generally resin printing is best

ruby prawn Mar 22, 2025, 6:04 AM

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why is that?

wraith ruin Mar 22, 2025, 6:04 AM

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it is possibly that pla, being less rigid, is actually absorbing some of the vibrations that petg transmits

wraith ruin Mar 22, 2025, 6:05 AM

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ruby prawn why is that?

resin printing does a better job cause its less of a layered design if you get what i mean, its like having 200 bricks concreted together or 1 giant brick

ruby prawn Mar 22, 2025, 6:05 AM

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right

wraith ruin Mar 22, 2025, 6:05 AM

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its only really viable for whoops cause they have smaller arms so less leverage for vibrations, whereas a larger quad has lots of room for vibration

ruby prawn Mar 22, 2025, 6:09 AM

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could position of battery from top to bottom effect?

jolly pilot Mar 22, 2025, 6:09 AM

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https://discord.com/channels/536623076796923924/1144570522991067146

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but yes, a 3d printed frame especially when not explicitly designed with the flaws of 3d printing in mind will never work

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and be dangerous

wraith ruin Mar 22, 2025, 6:11 AM

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ruby prawn could position of battery from top to bottom effect?

it effects handling slightly i think, but not altitude control

ruby prawn Mar 22, 2025, 6:17 AM

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ok the drone works now thanks so much i never knew that a 3d printed frame could do something like that.

wraith ruin Mar 22, 2025, 6:19 AM

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yeah unless youre willing to spend heaps of money and time, and not expecting much out of it, i would bother with it

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also never try and fly one anywhere near another person

#when armed drone climbs in altitude with my throttle fully down