Markarian421

Here's a craft file and log for a really simple (3 unique parts) stock craft with the same landing gear that exhibits the same behavior. https://www.dropbox.com/sh/zgcfx1n1kh3u4md/AAC2f7c-8Bwgt12Ncok3INTDa?dl=0

The one I'm using now originally had 6 landing gear, although I've tried many combinations now. With 12 it slides less, but still goes nuts when I turn on parking brake. I do have some mods and I'm using a Near Future Spacecraft pod and Tweakscale on some of the landing legs (only 110%) -- tonight I'll see if I can make something stock and see if it does the same thing.

I just started playing again recently after a long time away, and on Eve my vessels keep slowly sliding. So I installed this, and same as you when I engage parking break it causes my craft to start jumping around and shaking violently. KSP 1.11.1, on MacOS.

Does this work with 1.2.1 or does it need an update? I just read the last few pages and I didn't see any mention.

What's the file format? .cfg or something else?

How/where do I apply this patch? Does this go in the config file?

I'll try f4 next time. When it happened earlier today, I could right click on the part but there was no option to set it as a target.

Something that often happens to me when I'm trying to rendezvous or dock with another spacecraft (or grab a craft on a stranded astronaut mission) is that I'll suddenly lose my target in the final stages. And I'm so close I can't select it as a target in map view, I can only see my own ship. Is there a key for this? A control I'm missing? It would be nice to have some way to select the closest craft as a target. I've searched Google and these forums, either the answer is too obvious for anyone to mention or there are too many target questions for me to find this answer. Thanks!

I updated the plugins and so far I've been unable to reproduce the problem. I also don't see the mechjeb error you'd noticed in the log. I'll let you know if the problem turns up again. Thanks for the help.

I sent another log, and I'll update the Zodius rework pack. The only time I see it is when I exit the game and then come back in, then the legs are rearranged.

I sent you a link to the log. I'll try to get better screenshots. I'm not sure how to reproduce it yet -- the ship was in orbit around the sun, I exited the game, then next time I opened it, the parts were reconfigured. Edit: before and after screen shots

The quote got messed up . . . this was originally about the weak legs during physics warp. Quantum struts solved that problem. Plus I switched to just using the legs to keep the craft from falling over. I ran into a different problem though. I left the game one evening, when I loaded it the next, the landing gear parts had collapsed in one dimension (x or y?), the hinges were disassembled, and if I tried to articulate them they rotated from the center, not the ends. The first time I loaded the game the part of the hinges attached to the craft were still there, but on my second load (this morning, to take screen shots) those had vanished (probably inside the ship now). This is with version 2.0.1. In the VAB (legs extended): What it looked like on the last load (legs weren't extended -- I should get a better pair of screen shots, but no time right now):

Physics warp. Craft file: https://dl.dropboxusercontent.com/u/72953992/Test%20%20Craft%20003.craft

I'm wondering if the following is a known problem: I made some landing gear out of these, and while testing I noticed that, once landed, if I accelerate time (4x) the joints lose all strength (and the craft just sits on the ground instead of being held up). I've seen a few comments about the joints becoming weak, maybe this is related / a side effect of the same thing?

boostRatio seems responsible for some of the strange behavior. I've been trying to scale up the LT-1 legs, and it appears I need to adjust: groundHeightOffset (to keep it from shooting into the air) springRatio (to hold up more mass) and then damperRatio and boostRatio to try and get things back under control with the suspension once I've upped springRatio. The boostRatio parameter almost seems like a "superball" adjustment -- I cranked it up on one try, and the legs would bounce higher with each landing. In general I'm finding I need to reduce both damperRatio and boostRatio to keep larger landing gear stable.