Configuring parts

Before configuring the module data for parts, it is recommended to know about mesh modeling.

General configuration

1. Add Code Part Data: click on the root object myMod_myPart > Add Component > Core Part Data.
2. If this option is not available, right-click on the KSP2 package > Reimport.
3. Fill in the form.

Meta Data

Field name	Value/comment
Part Name	It has to be the same thing as the root game object: myMod_myPart
Author	Your modder name

Descriptors

Field name	Value/comment
Category	See List of categories/families
Family	See List of categories/families
Size Category	Choose a size

(no name)

Field name	Value/comment
Tags	Keywords allowing you to find the part in the VAB search (eg: "Apollo")

Properties

Field name	Value/comment
Fuel Cross Feed	Check it to allow the propellants to pass through the part
Mass	In metric tons
Attach Rules	Check the desired attachment types.

Note

Stack: allows the part to be stacked to another part

Srf Attach: allows the part to be attached to a surface

Allow Stack: allows another part to be stacked to this part

Allow Srf Attach: allows another part to be attached to the surface of this part

The other options do not seem to have any influence on the game.

Attach Nodes

If “Stack” was checked, you must add a top node and a bottom node. If “Srf Attach” was checked, you must add a srfAttach node.

Field name	Value/comment
Node ID	“top”, “bottom”, “srfAttach”, etc. (case sensitive!)
Node Type	Select the appropriate value.
Attach Method	Fixed_Joint for Stack. Hinge_Joint for Surface Attach.
Is Multi Joint	Checked
Multi Joint Max Joint	3
Position	Enter the node's coordinates. You can pick theme up in Blender. For easier set up, check “Gizmo” in Unity and display the meshes as wireframes.
Orientation	Enter the coordinates of the vector in normalized base (length = 1).
Size	1
Visual Size	1
Is Resource Crossfeed	True
Is Rigid	True

Additional configuration

1. Add Module Drag: click on “Add Component” > “Module_Drag”.
2. Depending on what kind of part you are making, reference the part modules sections for additional config options.
3. Generate prefab: move the root object to the Asset folder in the project window. This generates a prefab.
4. Apply Options: select the root part and in the Inspector window near the top on the Prefab line, click the Overrides dropdown and choose “Apply All”. If this option is not available, then you’ve got nothing you need to do here. Move along, move along.
5. Save JSON: at the bottom of the “Core Part Data” panel, click on “Save Part JSON”. Note

Note: It is important to remember that whenever you make any changes to the prefab or its components, you will need to re-apply the overrides (step 4) and save the updated JSON file (step 5).

Part modules

Command modules

1. Click on Add Component > Module_Command.
2. Fill in the fields.

Field	Value/Comment
Module_Command
Minimum Crew	1 for pods 0 for probes
Has Hibernation	False for pods True for probes
Requires Comm Net	False for pods True for probes
Alternate Control Orientations	Id: "Reversed" Orientation: 0;0;180 Position: 0;0;0

Reaction wheels

1. Click on Add Component > Module_ReactionWheel.
2. Fill in the fields.

Field	Value/Comment
Module_ReactionWheel
Pitch Torque	Ex: 5
Yaw Torque	Ex: 5
Roll Torque	Ex: 5
Torque Response Speed	Ex: 30
RequiredResources	Rate: 0.025 ResourceName: "ElectricCharge" AcceptanceThreshold: 0.01

Decouplers

1. Click on Add Component > Module_Decouple.
2. Fill in the fields.

Field	Value/Comment
Core Part Data
Stage Type	Decoupler Horizontal Decoupler Vertical
Staging Icon Asset Address	“Staging-Icon-Inline.png”
Tags	Ex : “break decouple separat split stag”
Module_Decouple
Explosive Node ID	“top” or “bottom”
Explosive Dir	0;-1;0 so that the decoupler goes downwards 0;1;0 so that the decoupler goes upwards

Docking ports

1. Click on Add Component > Module_Docking Node.
2. Fill in the fields.

Field	Value/Comment
Module_Docking Node
Docking Transform Name	The name of your game object that defines where the docking port should attach to other docking ports. Remember that foward in Unity is along the blue axis, so point the game object (usually a Empty object) along that direction
Control Transform Name	The direction to change to when clicking on Control from Here in the Parts action menu in game. Again, point the blue axis in the direction you want
Attachment Node id	The node to connect to when docking (I think)
Node Types	Any array of node sizes that determines which types of docking ports yours can dock to. For example, size0 is stock 0.625m diameter docking ports, size1 is 1.25m, and so on. Since this is an array, you can list multiple different types that the port can dock to. You can also use this to create custom docking port sizes, since it is an array of strings rather than enums.
Undock Ejection Force	How much force to use when undocking. The default 10 is probably too much for smaller ports. The stock 1.25m port uses a value of 0.4
Min Distance To Reengage	How far away the ship should get before the docking port will dock again
Acquire Range	How close the docking port needs to get to the other port before they will magnetically attract
Acquire Torque	How much torque the docking port can apply to align the connection in the non-roll axis?
Acquire TorqueRoll	How much torque the docking port can apply to align the connection in the roll axis?
Capture Range	How far away the two docking ports need to be before they will lock together
Capture Min Fwd	This value determines how much of a difference there can be in the dot product of the two docking transforms of both docking ports that are currently attempting to dock.
Capture Min Roll Dot	Not sure
Capture Max Rvel	Not sure
fx Dock Prefab Name	The effect to use when docking
fx Undock Prefab Name	The effect to use when undocking
Is Gendered	Se to true to make this docking port gendered, which means that you need a male and female port to dock. This could be useful for recreating soviet style drogue and probe docking ports, for example
Is Gender Female	If using gendered docking ports, marking this true creates a female docking port
Snap Rotation	Set to true if the docking port should snap to angles
Snap Offset	The angle to snap to when using Snap Rotation
Current State	The default state of the port. You probably want to leave this at Ready
Is Deployable Docking Port	Set to true if this is a deployable docking port, like the stock MK1/2 deployable docking ports

Generators

Electric charge

1. Click on Add Component > Module_Generator.
2. Fill in the fields.

Field	Value/Comment
Core Part Data
Rate	Ex: 5.5
Resource	"Electric Charge"
Acceptance Threshold	Ex: 5.5