LibrePilot Forum
General Category => General Discussion => Topic started by: Spudspitter on March 02, 2016, 07:14:59 pm
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Well this one is new to me. This is the 3rd rig I have built and I have never had a problem like this. Lol I'm pulling my hair. I have had 250 and a bat bone Tricopter. This is a nighthawk 200. I have the FVT 20 amp esc flashed with BLHELI and dampen light mode on. The quad Flys well. Still need to get a little more tuning done but it's still very tight.
The problem, when I land even if I do it as softly as possible the quad jumps. All motors Rev up. I have gone through 3 different boards and I have run open pilot and Libre pilot. The board is mounted with plastic stand offs. Ones, I hit the ground when I was flying and the dam thing launched its self 20 feet in the air. Any ideas. Is there some setting I am missing. This is a 200. And the other quads have been 250. So maybe it is a setting that I need to adjust for its size. That doesn't make sense. I am at a lost my pid are p 280 I 369 and d 60. Any ideas I'm losing it. Lol
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Flightmode used and board ?
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So I've used 3 different cc3d boards. The current board is the evo. I've had the problem in attitude , rate and acro.
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I have in pieces right now trying see if any of the motors are give weird vibration. Butt seem ok. They are the emax 2204 2300. I run 4s I have tried 3s and it still happens. Lol never seen this.
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Post your config file here
File > Export UAV settings.
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here you go i just got it back together. i was able to fix one problem i was having. lol but that was with the video TX. thank you so much for your time and effort.
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Your settings are not really serious :P
1 - Setting Attitude stabilization with high Max rate (1000deg/s)
2 - Setting Attitude with a max bank angle at 180° ?.
The other bank used with Acro+ looks the same. Acro+ do not need high rates because go into manual at full stick, without any limitation (the only limitation is hardware/motors/thrust/weight. So please keep normal rates ;)
I'm pretty sure you can get more precision with the same max rate result. If you want more reactivity, increase Acro+ factor.
Try with "normal" rates if issue still here.
Edit: Same for Yaw, a rate/limiting rate at 1000deg/s should give an overshoot while landing and the frame got a small bump in yaw axis...
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so your saying turn it down? what should i set my rate to?
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Basically:
Keep default settings for Attitude (bank1)
Keep default settings + Acro+ factor increased for Acro+ flight mode (bank2)
Keep those funny settings for Rate only flight mode if you want. (bank3)
** Really tune as rate, i doubt you still keep those high Attitude proportional values.
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cool ok i will give it a try. i like to do 4 5 flips at once so i like the high rate. im going to try and bring it to default. bank 3 is not used. i have only two flight modes. thank you again. its dark now so i will try latter.
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It worked. I lowered the rate angle and limits and bam. I think it feels even more locked in. Thanks so much f5soh your a wealth of knowledge. You are a scholar and a gentleman.
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Thanks for the good words, we learn every day.
For sure quad should be more controllable now :)