Does source/garrysmod still use weight of the thruster as a factor in the velocity? Try changing the weight of the thruster using a weight tool, or use a different model.

Well, the weight of the thruster absolutely made a difference. Why has that never happened before? Just suddenly started to affect? Garry must of just added that "feature" I guess.

It's been a problem since the beginning. It might actually be how source calculates physics.

But I simply don't understand, it never used to do that for me. Why all of a sudden?

You must've just not noticed, its a core part of how source handles physics. I think of it like a priority system. If theres a weight 1 popcan attached to a weight 20000 cargo container, forces on the popcan are going to be less significant to the overall system. Same goes for welds looking "sloppy", its a weight issue.

If anyone understands the mathematical relationship between weight and effective thrust (it doesn't appear to be linear), I'd love to factor weight in to the Thruster overlay's "Effective Thrust" number.

Huh, thank you so very much for explaining that to me! I was so frustrated. I made a TIE fighter that couldn't fly. Q_Q. You guys have the ability to talk to Garry, do you not? More or less? I'm sure he'd listen to the people with one of the most important mods ingame. Facepunch is best punch.

But seriously guys, thanks.

Er, why is this so much of a surprise?

Let's say you have an object that has forces exerted onto it to push something else (the thruster). The object has a constant force exerted onto it at all times.
If the object has little weight, the object won't be heavy enough to push much of anything, even if it has a force of 10,000 units exerted onto it.
However, if the object has a much higher weight, moving at the same velocity as when it was lighter, it will be able to push a lot of things very far.

The higher an object's weight, the easier it is for the object to push other things around, and the harder it is to move it. However, thrusters exert a constant force regardless of weight, so that can lead to wonky problems like this. Some will constitute this as being a feature and/or a bug

Originally posted by TDC DarkShuffle6:

If the object has little weight, the object won't be heavy enough to push much of anything, even if it has a force of 10,000 units exerted onto it.
However, if the object has a much higher weight, moving at the same velocity as when it was lighter, it will be able to push a lot of things very far.

I don't think you understand the term 'force'.

^ My thoughts exactly. I figured it worked similar to apply force in an e2. Guess not! lol

my thrusters don't work at all
i wired a wire thruster to a pod controller and i have not movement

Change the weight with the weight tool. Thruster isn't heavy enough to not act like a feather in the wind.