# Build Helper<\/p>\n
Build Helper is a client-side Minecraft mod focused on making large-scale building faster, safer, and less repetitive. It combines shape-based building modes, blueprint workflows, mining\/construction templates, and environment helpers into one toolset.<\/p>\n
## What It Does<\/p>\n
Build Helper helps you:<\/p>\n
– build repeated structures from a selected region
\n– fill, hollow, frame, or shell large shapes
\n– create standard tunnel and stair patterns quickly
\n– save structures as blueprints
\n– preview, rotate, mirror, and auto-build blueprints
\n– place temporary support blocks for floating parts
\n– clean up support blocks after building
\n– reduce placement mistakes with auto-sneak interaction helpers
\n– deal with lava and fire hazards while working<\/p>\n
## Main Features<\/p>\n
### Region-Based Building Modes<\/p>\n
The mod can use a selected area and apply common construction patterns such as:<\/p>\n
– `Fill`
\n– `Box`
\n– `Frame`
\n– `Core`
\n– `Pillar`
\n– `SlabFloor`
\n– `Spherical`
\n– `SphericalShell`
\n– `HorizontalRing`
\n– `HorizontalRingShell`
\n– `Clean`<\/p>\n
These are useful for walls, shells, solid fills, hollow shapes, and other repetitive building tasks.<\/p>\n
### Concretize Modes<\/p>\n
The mod also includes template-style excavation \/ construction modes for infrastructure work:<\/p>\n
– upward and downward stairs
\n– walled stairs
\n– enclosed stairs
\n– `1×2`, `1×3`, `2×2`, and `2×3` channels
\n– `2-high` and `3-high` fishbone mining layouts<\/p>\n
These modes are useful when you want consistent tunnels, stairs, and mining patterns.<\/p>\n
### Blueprint System<\/p>\n
The blueprint system is currently an **experimental feature**.<\/p>\n
Please assume the following up front:<\/p>\n
– there are still many known and unknown issues
\n– only a small number of block types have been tested
\n– save errors, rotation errors, placement errors, facing errors, and configuration errors are all currently considered normal failure cases<\/p>\n
So far, only a limited set of blocks has been tested with any confidence, including:<\/p>\n
– stone
\n– glazed terracotta
\n– trapdoors
\n– slabs
\n– stairs
\n– redstone repeaters<\/p>\n
If you want to use blueprints with complex blocks, containers, redstone components, or unusual block states, test in a separate world first.<\/p>\n
The blueprint system lets you:<\/p>\n
– save a selected build as a `.schem` file
\n– load and manage saved blueprints
\n– preview blueprint placement in the world
\n– move the blueprint position
\n– rotate or mirror the blueprint
\n– auto-build with materials from your inventory
\n– place temporary supports for floating blocks
\n– remove mismatched or extra blocks in the target area
\n– clean support blocks when building is done<\/p>\n
The default blueprint folder is `config\/buildhelper\/blueprints`.<\/p>\n
### Build Assistance<\/p>\n
The mod also includes quality-of-life helpers:<\/p>\n
– automatic sneak interaction for blocks that require careful right-clicking
\n– block facing controls
\n– slab and stair placement preferences
\n– optional use of the held material as a forced replacement source
\n– mode history and quick switching tools<\/p>\n
### Hazard Helpers<\/p>\n
– `Firefighter` mode helps with fire-related situations
\n– `LavaHater` helps manage nearby lava
\n– temporary lava-source clearing can create a short working window in dangerous areas<\/p>\n
## Quick Start<\/p>\n
### 1. Prepare a Selection Tool<\/p>\n
By default, the mod expects an item named `Build-Helper-Tool` to be used as the selection tool. You can change this name in the config GUI.<\/p>\n
### 2. Select a Region<\/p>\n
1. Hold the selection tool in your main hand.
\n2. Its displayed item name must exactly match the configured tool name. By default this is `Build-Helper-Tool`.
\n3. The item must not be a placeable block item.
\n4. Sneak and right-click a block with your main hand.
\n5. The newest clicked position becomes the latest point, and the previous latest point is shifted into A\/B history.<\/p>\n
The mod will use this A\/B region for many building modes.<\/p>\n
Important details:<\/p>\n
– If a mode is currently running, selecting a region will stop it first.
\n– The coordinates are shown in chat after each successful selection.
\n– Internally, the previous latest point is moved into A, and the new click becomes B. In practice, this works like a rolling two-point selection.<\/p>\n
### 3. Choose a Mode<\/p>\n
Open the mode selector, pick the mode you want, confirm the region or direction settings, then start it.<\/p>\n
Typical flow:<\/p>\n
1. select a mode
\n2. confirm region, direction, or blueprint position
\n3. enable the mode
\n4. adjust placement with scroll controls if needed<\/p>\n
Note:<\/p>\n
– Scroll-based shortcuts only work while you are holding the configured build tool name in either hand.
\n– If you are not holding the correct tool, the scroll shortcuts do nothing.<\/p>\n
## Default Keybinds<\/p>\n
Current built-in default keybinds in the codebase are:<\/p>\n
– `H`: enable \/ stop the current mode
\n– `J`: open the mode selector
\n– `M`: mirror the active blueprint
\n– `L`: temporarily clear nearby lava sources<\/p>\n
Some supported actions may currently be unbound by default, so you may want to assign them manually in Minecraft controls:<\/p>\n
– blueprint management
\n– settings GUI
\n– firefighter toggle
\n– lava hater toggle<\/p>\n
## Scroll Wheel Controls<\/p>\n
Scroll shortcuts only work when:<\/p>\n
– you are holding the configured build tool name
\n– the current mode is a supported region mode, `BlueprintBuild`, or a concretize mode<\/p>\n
### `Alt + Scroll`<\/p>\n
– switch to the previous or next mode<\/p>\n
### `Shift + Scroll`<\/p>\n
Moves the current target:<\/p>\n
– regular region modes: moves the whole A\/B selection
\n– `BlueprintBuild`: moves the blueprint placement position
\n– concretize modes: moves the concretize origin<\/p>\n
Movement rules:<\/p>\n
– if your pitch is above `45\u00b0`, it becomes vertical movement
\n– otherwise it moves forward\/backward based on your facing direction
\n– each scroll step moves by `1 block`<\/p>\n
### `Ctrl + Scroll`<\/p>\n
Adjusts range or depth:<\/p>\n
– regular region modes: expands or shrinks the boundary on the side you are looking at by `1 block`
\n– concretize modes: adjusts forward depth \/ region limit
\n– this does not apply to normal blueprint placement movement<\/p>\n
### `Shift + Ctrl + Scroll`<\/p>\n
Rotates the active target by `90\u00b0`:<\/p>\n
– regular region modes: rotates the selected region
\n– concretize modes: rotates concretize direction
\n– `BlueprintBuild`: rotates the blueprint around the axis derived from your current view direction<\/p>\n
## Region Selection vs Mode Behavior<\/p>\n
– most basic building modes require an A\/B region
\n– `BlueprintBuild` uses blueprint placement coordinates instead of the normal A\/B region as its main build target
\n– concretize modes use their own origin and facing system
\n– if a mode requires a region and A\/B is not set, it will not run<\/p>\n
## Blueprint Workflow<\/p>\n
This workflow is also experimental. Test it in a separate world before trusting it in a real save.<\/p>\n
The standard blueprint flow looks like this:<\/p>\n
1. select an existing structure with point A and point B
\n2. switch to `BlueprintSave`
\n3. save the structure as a blueprint
\n4. open blueprint management and activate the blueprint
\n5. set the placement position
\n6. rotate or mirror if needed
\n7. switch to `BlueprintBuild`
\n8. let the mod place blocks from your inventory
\n9. switch to `CleanSupportBlocks` if you want to remove temporary supports afterward<\/p>\n
## Important Settings<\/p>\n
Common settings include:<\/p>\n
– selection tool name
\n– action delay
\n– render distance
\n– whether region rendering stays visible without holding the tool
\n– slab and stair placement preferences
\n– auto-sneak learned block list
\n– blueprint directory
\n– temporary fill block
\n– auto-clean mismatched blocks during blueprint work
\n– auto-clear surplus blocks in blueprint space
\n– configure interactive blocks during building<\/p>\n
If you want to regenerate the default config, delete `~\/.minecraft\/config\/buildhelper.json` and launch the game again.<\/p>\n
## Who This Is For<\/p>\n
Build Helper is especially useful for players who:<\/p>\n
– build large structures regularly
\n– repeat the same shapes or patterns often
\n– want to save builds and reconstruct them as blueprints
\n– dig a lot of structured tunnels or stair systems
\n– work in dangerous areas with lava or fire nearby<\/p>\n","protected":false},"excerpt":{"rendered":"
Build Helper is a client-side Minecraft mod focused on making large-scale building faster, safer, and less repetitive. It combines shape-based building modes, blueprint workflows, mining\/construction templates, and environment helpers into one toolset.<\/p>\n","protected":false},"featured_media":35487,"template":"","meta":{"_minecraft_slug":"build-helper-mod","_minecraft_project_id":"n36jWvH9","_minecraft_author":"flier268","_minecraft_license":"LicenseRef-All-Rights-Reserved","_minecraft_downloads":299,"_minecraft_follows":0,"_minecraft_client_side":"required","_minecraft_server_side":"unsupported","_minecraft_storage_type":"zip","_minecraft_archive_name":"build-helper-mod.zip","_minecraft_size_bytes":61825720,"_minecraft_version_count":32,"_minecraft_updated_at":"2026-05-15T18:12:02.864435Z","_minecraft_date_created":"2026-03-24T19:22:44.246845Z","_minecraft_date_modified":"2026-03-16T13:33:19.669462Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/build-helper-mod","_minecraft_icon_attachment_id":35487,"_minecraft_imported_at":"2026-06-01T17:14:52+00:00","_minecraft_import_hash":"171f6ade0a6fb7c35e4dae40aa2e3011","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[97,104,89,158,92],"mod_loader":[99,106,160],"minecraft_version":[59,36,102,41,38],"class_list":["post-35486","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-fabric","mod_category-forge","mod_category-game-mechanics","mod_category-neoforge","mod_category-utility","mod_loader-fabric","mod_loader-forge","mod_loader-neoforge","minecraft_version-1-20","minecraft_version-1-20-1","minecraft_version-1-20-6","minecraft_version-1-21-11","minecraft_version-1-21-4"],"yoast_head":"\n