Atmospheric Ship sinks to ground after having a subgrid on a rotor attached.

[Daz the Lemur]

So I was in a multiplayer game that I hosted maself, minding my own engineering business building a small atmospheric mining ship with a rotating drill head of multiple drills, but when I undocked it, it began sinking to the ground even tho it has two large atmos thruster and multiple small ones lifting it upwards.
The fun part is that previously it didn't have the large thrusters and was equipped with 3 drills and worked just fine, but as soon as I attached those drills to a rotor it began sinking slowly! It appears as though the same drills on the rotor have a much higher weight as if they were attached to the ship directly.
It gets even funnier! In a singleplayer creative world the same ship flies and stays upfloat just fine!
What is going on?

[Dan2D3D]

I just tested one of my creation that was falling at 0.11 m/s last year but all good now using the new share option, it's very stable at 0.00m/s :
https://steamcommunity.com/sharedfiles/filedetails/?id=2067683970
That ^ ship is big with huge rotor ramp in the back.

Also the OP was for a rotating Drill and DrBacon's problem is for solar panels that I would try to find a working solution on it if he share his ship.

[DragoF1sh]

there are a few ways around this. Dampeners only account for the weight of the main grid. You can attach vertical thrusters to the subgrids and they will support their own weight. If you want to control your subgrid thrusters, you can use some scripts to connect their controls to your main controls. If you are using a carrier ship that is holding multiple subgrids or other grids inside it, you need to either get to space or land. Flying in place is not gonna be an option unless you set gps for your ship to constantly follow with autopilot.

[Karmaterrorᵁᴷ]

引用自 Dan2D3D：

I just tested one of my creation that was falling at 0.11 m/s last year but all good now using the new share option, it's very stable at 0.00m/s :
https://steamcommunity.com/sharedfiles/filedetails/?id=2067683970
That ^ ship is big with huge rotor ramp in the back.

Also the OP was for a rotating Drill and DrBacon's problem is for solar panels that I would try to find a working solution on it if he share his ship.

Wait what..... share inertial tensor fixes subgrids pulling on the main ship in gravity??

What happens when you fly forwards? Does it still pitch up/down from dragging the subgrid?

[Dan2D3D]

@Karmaterrorᵁᴷ

All good so far, well on my creations.

[Karmaterrorᵁᴷ]

Il have to give this a go on something with wings. The last time i tried Share Tensor was on hitch rotors for a train and it just made them really "spongy".

For example tapping the brakes on the front car would make the train compress at the joints like an accordion. Maybe it works better for flying stuff though, will defo test this out, thanks for the info man :)

[O_T]

I did a quick test with some rotors and as weight some ore, containers and light/heavy armor blocks:

1. It looks like sub grids itself are calculated correctly.
2. Load like ore in a sub grid's container is not calculated. When the sub grid with load is on the right side then the ship is rolling to this side.
3. When using sub-sub grids then anything is calculated wrong. When the sub-sub grid is on the right side then the ship is rolling to the left side. When sub-sub grids with the same weight are on both sides then the ship is flying straight up.

Results:
- I have not explicitely tested this but it should work with drills on a rotor as long as the drills are empty. This means a simple mining ship can't use the drills as additional loading space.
- A simple crane with more then 1 axis or anything like this can make much more trouble then a massive rotor ramp.

[Jel]

Bad thing is this also happens with NO rotors and NO pistons attached. HAving a subgrid on another ship makes this sinking into the ground sometimes, the other time it works just fine.
I have encountered this hundreds of times on ded.server but never was able to tell WHEN exactly this happens and when it doesn´t.
So...

[ThaFatha]

still experiencing same issue 2021 latest SE, big carrier ship with no rotors or pistons...
One connector and a small miner attached to it (which also has no rotors nor pistons) makes the carrier ship to sink in atmosphere...

Strange that this still IS an issue...

[Pervy]

引用自 Dan2D3D：

I lock my rotors and it stops.

Last i had this problem dan, there was no rotor to stop, it was a pistons.
And the ship sank so very hard on the moon. Thats why i dont build mining ships with extending drills on planets or just anywhere there is G.

Edit: So from what i can read i had a sub sub grid? there was 2-3 pistons and that ship would sink like a mother fff'er.