Space Engineers

Space Engineers

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Bazslaz Jul 10, 2020 @ 1:05pm
Ship lifting backward
I am a fairly new player and built this ship. https://steamcommunity.com/sharedfiles/filedetails/?id=2159451673

for some reason it seems really back heavy even though I have a ton of thrusters and gyros. Can someone with more experience help me understand why when my dampers are on why my builds front keeps drifting up?
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GONDAL Jul 10, 2020 @ 1:12pm 
Originally posted by Bazslaz:
I am a fairly new player and built this ship. https://steamcommunity.com/sharedfiles/filedetails/?id=2159451673

for some reason it seems really back heavy even though I have a ton of thrusters and gyros. Can someone with more experience help me understand why when my dampers are on why my builds front keeps drifting up?

If you have any hinges/rotors, it might be an issue with those as I am currently experiencing similar problems with a contraption of mine.
Bazslaz Jul 10, 2020 @ 1:18pm 
I am not using any hinge rotors just normal plain rotors
PolecatEZ Jul 10, 2020 @ 2:02pm 
Any kind of "extension pieces", specifically pistons, hinges, and rotors of any kind will create a "sub grid" for your ship (anything placed after the extension piece). Having an active sub grid that isn't locked down by merge blocks will create a tiny amount of drift for your ship.
Dan2D3D  [developer] Jul 10, 2020 @ 2:33pm 
It looks complex creation using pistons, rotors and merge blocks, well that is what I see on WS item cover.

Important :

Rotors and pistons on Atmos ships gives a specific problem that is :

>>> Ship moving on its own <<<

so that is one of the hard SE challenges, to find the working solution.

I will go in game to test your ship but I think it is a "Not working concept" and we must redo new/Different conecpts when a not working one is found.

Be back later with more info on the reason why ....
Last edited by Dan2D3D; Jul 10, 2020 @ 2:34pm
Bazslaz Jul 10, 2020 @ 2:46pm 
Thanks for the help with this build looking forward to seeing what you find. It is interesting to learn about rotors and such I did not know any of that.
Dan2D3D  [developer] Jul 10, 2020 @ 3:11pm 
Testing done on your ship =

>> Double rotor concept is forbidden on ships and works fine on stations only. <<

I have painted the rotors red so you can see what is forbidden :
https://steamcommunity.com/sharedfiles/filedetails/?id=2161685064
Deleting the front Ramp/Door fixed the "Moving on its own" so that showed me where the problem was :
https://steamcommunity.com/sharedfiles/filedetails/?id=2161682282

You will have to find a new concept using only one rotor per "Door/Ramp" and make sure the piston heads and rotor heads have one block of clearance around them.

I recommend to try with the new Hinge block placed in the center with Blast Door blocks for all edges, on ship and Ramp :
https://steamcommunity.com/sharedfiles/filedetails/?id=2140962093
https://steamcommunity.com/sharedfiles/filedetails/?id=2140960443

Edit
And no need of the "Piston Merge blocks" or "Door Lock" using Hinge in center
Last edited by Dan2D3D; Jul 10, 2020 @ 3:36pm
Bazslaz Jul 10, 2020 @ 4:22pm 
Thank you for the help, Great idea, I would have never figured that out on my own
Dan2D3D  [developer] Jul 10, 2020 @ 4:25pm 
You're welcome!

Keep in mind that Engineers find solutions only by testing / trying different concepts.
Karmaterrorᵁᴷ Jul 10, 2020 @ 6:43pm 
Anything on thee end of a rotor/piston/hinge is weight your ships dampeners do not account for. So its weight being pulled down by gravity with no resistance, which in turn pulls your ship down at the point it connects.

Balancing your subgrids by having them close to thee ships centre of mass, or having equally weight subgrids at either end/side of the ship will help in gravity.

In space subgrids are dragged around by the ship, so will cause pitch or yaw when accelerating, again based on where they connect to the main grid. We can balance things out again to achieve straight flight, but in slightly different ways :)
Pistons/rotors/hinges/experimental mode crap bugs.
Your ship will flip backwards nomatter what you do, ♥♥♥♥♥♥♥ up mining ship with extension arms etc.
Karmaterrorᵁᴷ Jul 10, 2020 @ 7:20pm 
Originally posted by ✠☠☣.n0 m3rCy☣☠✠:
Pistons/rotors/hinges/experimental mode crap bugs.
Your ship will flip backwards nomatter what you do, ♥♥♥♥♥♥♥ up mining ship with extension arms etc.

Counter balance your extending arms. If they extend from the front sides of the ship, add mirrored pistons to the rear with a weight (maybe heavy armour block or two) on them to balance it out. Make sure you have a system to drain your drills as the heavier they get the more pronounced the effect becomes

SE physics is a bit backwards in some ways, once you get the hang of why the problems occur, it gets a lot easier to plan for and build around them :)
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Date Posted: Jul 10, 2020 @ 1:05pm
Posts: 11