Train that uses physics shakes / fly away in turns

Help and Feedback Scripting Support
#1

  1. What do you want to achieve? I am currently working on a train that uses a linear velocity but it has an issue.

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  2. What is the issue? The train can sometimes fly away and most of the time shakes when in a turn and even shakes sometimes in a straight line.

  3. What solutions have you tried so far? I looked on forums.

#2

Search for ‘train derailing’ or ‘cart derailing’, click on the lines at the right side of the Search bar for the advanced filters, and use my name in the ‘posted by’ spot.

I’ve answered this question many times and your train actually looks a lot like a tutorial train I’ve made for answering this exact question.

1 Like
#3

Hello, yes, i am using the model you made, i wasn’t expecting you to help people on this subject years after, on the posts i looked for an answer, i found some of yours but i was wondering if what was making it shake are the turns that i make using archimedes

#4

These are the turns

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I think that could maybe cause the shake but i have no idea how to make the turns in another way

#5

I also don’t use it 100% like it’s from origin, i use a linear velocity and i removed a carriage and my train model is welded to the primary part (every parts of it are massless)

#6

When you used Archimedes did you make both the rail parts into a model then use Archimedes on that? If so are your inner rails too long and causing a mismatch that the center aligning wheel is catching on? If so select all the inner rails and go to the Properties window and shorten the length slightly until the corners of the rail Parts don’t cross over each other.
Did you see the most recent model I made? It’s a 2 car train that has double axle bogies and can climb and descend hills? It also uses VectorForce or HingeConstraint motors to drive it (you can select either one by changing some of the lines in the script in the train.
Train test, bogies with tilt (VectorForce or Hinges).rbxl (191.8 KB)

#7

increase the density of the train, put friction of wheels to zero, and weight to 100, put elasticity of all parts to 0 and weight to 100
do this and it should work, otherwise you can use one of these two methods:
you have to add align position and align orientation property and set them accordingly
you can demp velocity and angular velocity every frame, by connecting to heartbeat and setting AngularVelocity *= 0.9; LinearVelocity *= 0.9