Description
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Better Contraption Diagram
Precision engineering for Create: Aeronautics
This mod revamps the Contraption Diagram UI, giving you the extra data you need to build perfectly balanced aircraft. No more guessing why your ship is tilting — now you have the numbers.
Preview
Rope balancing preview
CoM Targeting Tool
Balloon Volume Calculator
In Game Preview with "Counterbalancing Helper"
Key Features:
- CoM Targeting Tool: A specialized screen where you can set a "target" Center of Mass. The mod calculates exactly where and how much weight you need to add to achieve it.
- Counterbalancing Helper: Easily identify and match block pairs with opposite CoM offsets to keep your build stable.
Extra Features:
- Extra Force Data: Displays precise force direction coordinates and the resultant force vector.
- In-world block CoM: Highlights the Center of Mass of the specific block you are looking at (requires Engineer's Goggles and F3 menu to be active).
How to Install Better Contraption Diagram (Mod)
Better Contraption Diagram by Zelaux is verified for Neoforge across Minecraft versions 1.21.1 (latest release: 1.2.2, file size: 827 KB). Follow the steps below to install it safely from ModCraft.tv:
- Click the Download button above and select your Minecraft version (1.21.1) and platform (Neoforge).
- Make sure you have the compatible loader or environment installed for Neoforge.
- Move the downloaded Better Contraption Diagram file into your Minecraft
.minecraft/modsfolder and launch the game.
All Versions
+ Add Version
[1.2.2] Better Contraption Diagram 1.2.2
by Zelaux on Aug 21, 2026
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- Added compatibility with sable 2.0.5
[1.2.1] Better Contraption Diagram 1.2.1
by Zelaux on Aug 07, 2026
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- Changelog**
- Added Balloon Volume Calculator
- Added scrolling for the force group list
- Vector coordinates are now hidden unless **[Shift]** is held
- Added support for forces from connected contraptions (also works when balancing)
- Added initial support for rope forces in balance calculations
- Fixed crashes related to improper API implementation in some external mods
- Added client command
/bcd sublevel_info - Fixed off-center blocks cache invalidation
[1.1.1] Better Contraption Diagram 1.1.1
by Zelaux on Jul 05, 2026
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Changelog 1.1.1
- Updated dependencies:** Sable 2.0.0, Aeronautics 1.3.0
- Added force display for connected contraptions.
- Added equivalent mass calculation for forces(hold **Shift**).
- Added max speed demo based on force calculations (Note: **sails** are not yet implemented).
[1.1.0] Better Contraption Diagram 1.1.0
by Zelaux on Jun 18, 2026
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## Changelog:
- Fixed sublevel rescue command when sublevel is not loaded
- Added tooltip for calculator button
- Marked mod as optional
- Fixed center-of-mass tooltip for items
- Implemented symmetry reduction for Center of Mass tooltip
[1.0.2-b] BetterContraptionDiagram 1.0.2-b
by Zelaux on Jun 09, 2026
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- Fixed network protocol error
[1.0.2-a] BetterContraptionDiagram 1.0.2-a
by Zelaux on Jun 08, 2026
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> **Stability Warning:**
> This version **might** be unstable due to a discovered issue in > **FabricMixin**:
> https://github.com/FabricMC/Mixin/issues/213
### Changelog ###
> This version **might** be unstable due to a discovered issue in > **FabricMixin**:
> https://github.com/FabricMC/Mixin/issues/213
### Changelog ###
- Added a display for the **sum of forces** and its **displacement** (
¡button).
[1.0.2] BetterContraptionDiagram 1.0.2
by Zelaux on Jun 08, 2026
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Should be stable
## Changelog ##
## Changelog ##
- Fixed a networking error that caused the mod to malfunction
- Fixed controls for **Create: Enhanced Diagrams** when the Calculator is open
- Updated the display when Target Center of Mass is not selected
[1.0.1-a] BetterContraptionDiagram 1.0.1-a
by Zelaux on Jun 03, 2026
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Fixed crash when rendering some tooltips
[1.0.1] BetterContraptionDiagram 1.0.1
by Zelaux on Jun 02, 2026
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- Update released 1.0.1!**
- Added CoM cache resetting.
- Added /sublevel rescue command (Originally for debugging, but it can help you rescue your contraptions from the void).
- Added local saving for Target CoM (Prevents data loss when moving far away from the diagram or when reconnecting to the server).
- Added server-side sync support.
[1.0.0-a] BetterContraptionDiagram 1.0.0-a
by Zelaux on May 29, 2026
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Removed required jei dependency
[1.0.0] BetterContraptionDiagram 1.0.0
by Zelaux on May 26, 2026
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Added
- CoM Targeting Tool
- Counterbalancing Helper
