Multiblock structure rework
Index · Next: Bose-Einstein Condensate multiblocks
A long-running push across GregTech and its addons: structures are checked once and cached, every multiblock reports exactly which hatches and casings are missing, and the shared StructureLib gained the pieces the rest of the pack builds on.
MBF and MVF Replacement with Hearth and Fridge
The Mega Blast Furnace and Mega Vacuum Freezer are replaced by the Exothermic Hearth and Endothermic Fridge at ZPM tier. These new machines increase in efficiency as they run-the Hearth gains parallels and the Fridge gains speed-and can optionally be accelerated with pyrotheum or cryotheum. A tier 2 Fridge unlocks in UMV as a more generous upgrade.



Shipped in: GT5-Unofficial #6548, GT5-Unofficial #6714, GT5-Unofficial #6478, GT5-Unofficial #6785, GT5-Unofficial #6985
Industrial Cutting Factory
The Industrial Cutting Factory has been redesigned with a new contest-winning structure and four tiered sawblades that determine the maximum energy hatch tier and machine stats. The machine features improved textures, a dynamic spinning sawblade render that responds to machine state, and the old structure is available as a Legacy version during a one-cycle deprecation period.


Shipped in: GT5-Unofficial #6633, GT5-Unofficial #6671
Other changes
- Make EEC, Mass Solidifier and Cutter use getTierForStructure for the energy hatch tier check (GT5-Unofficial #7728)
- Attempt to have sawblade finish at a 90-degree angle (GT5-Unofficial #7306)
- fix skipped checkMachines (GT5-Unofficial #6786)
- Make the cutting machine saw render actually spin (GT5-Unofficial #6774)
- Deprecate Slicers and simplify cutting machine code (GT5-Unofficial #4769)
Watch on Discord - 1 video clip(s)
Integrated Ore Factory Structure Rework
The Integrated Ore Factory receives a complete structural redesign from the Multiblock Contest with laser support, a mode button in the GUI, and more flexible hatch placement. The old structure is deprecated but can be converted to the new design via crafting table recipe.

Shipped in: GT5-Unofficial #6062, GT5-Unofficial #6158
Other changes
- Fix IOF Tooltip Sheetmetal Count (GT5-Unofficial #7481)
- iof void all stone dusts (GT5-Unofficial #7457)
- Add seemingly forgotten blocks to new IOF structure (GT5-Unofficial #6763)
- Unify multiblock button tooltips (GT5-Unofficial #6517)
- Fix int overflow in IOF fluid and item accumulation. (GT5-Unofficial #6272)
- fix power calculation in IOF (GT5-Unofficial #6165)
- fix integrated ore factory not respecting recipe time + remove batch mode (GT5-Unofficial #6156)
- Fix AAL recipe counter and parallel multis on world reload counter (GT5-Unofficial #5713)
- Glass Tooltips enhancement to make it be the same to actual situation (GT5-Unofficial #5301)
- Tooltip change to tell players IOF Chembath mode needs what raw recipe needs like SodiumPersulfate/Mercury (GT5-Unofficial #5097)
- Allow upside down IOF (GT5-Unofficial #4993)
Boilers Structure Rework
The boiler multiblock structures have been redesigned with a new look. The old structures are deprecated and can be converted to the new versions in a crafting table.

Shipped in: GT5-Unofficial #6251
Zhuhai Fishing Port Structure Rework
The Zhuhai Fishing Port has been completely redesigned with a new structure look featuring improved textures, replacing the old green casing aesthetic. The old controller can be converted to the new one using a crafting table recipe during the deprecation period.


Shipped in: GT5-Unofficial #6257
Large Thermal Refinery Structure Rework
The Large Thermal Refinery multiblock receives a complete restructuring with a new design from the community contest. The new version features tiered coils providing 5% bonus speed and 5% power reduction per tier, along with tiered solenoids offering 2 parallels per tier.



Drone Centre Structure Rework
The Drone Centre structure has been completely redesigned with a new compact look customizable with colored concrete. Drones now have cameras and are fully controllable, with four new drone models that change color based on their tier level.


Shipped in: GT5-Unofficial #6510, GT5-Unofficial #6954, GT5-Unofficial #7217
Other changes
- Improve drone panel contrast (GT5-Unofficial #7538)
- [MUI2] Added Disabled Button Themes (GT5-Unofficial #7048)
- Add deprecated tooltip to legacy Drone Centre (GT5-Unofficial #6809)
- fix renderer for new Drone Centre structure (GT5-Unofficial #6764)
- Drone Centre missing a steel frame box in layer 2 (GT5-Unofficial #6762)
- Several fix for drone centre rework (GT5-Unofficial #5932)
- [MUI2] port Drone Centre to MUI2 (GT5-Unofficial #5320)
Watch on Discord - 1 video clip(s)
Planetary Gas Siphon Structure Rework
The Planetary Gas Siphon multiblock has been completely restructured with a significantly larger design. Higher tier coils now grant a +10% speed boost per tier, the base processing speed has been doubled, and hovering over the controller displays your current speed bonus and coil tier information.


Shipped in: GT5-Unofficial #6310
Other changes
- Port GT5U multiblock tooltips to markdown (batch 2) (GT5-Unofficial #7629)
- Port tooltips for Dyson Swarm, Gas Siphon, Digester, AAL to lang files (GT5-Unofficial #7434)
- Add EU/t to PGS Nei Page + Improve PGS tooltip regarding EU/t (GT5-Unofficial #7241)
- Fix Energy in some Reworked Multis (GT5-Unofficial #6611)
- Make new gas siphon able to use batch mode (GT5-Unofficial #6377)
- fix siphon structure to use the correct rebolted casing (GT5-Unofficial #6374)
- Change PGS Tooltip to add awareness of hatch restrictions (GT5-Unofficial #6320)
- Fix dyson and gas siphon textures not rotating properly (GT5-Unofficial #5753)
Industrial Arc Furnace Rework
The Industrial Arc Furnace has been completely restructured with three operating modes: normal mode for arc furnace recipes, EBF mode for blast furnace recipes at 16x cost, and ore mode for smelting ores into molten metal. New electrode items control machine statistics, with mechanics including arc ignition/shutdown timing, electrode durability detection, and special electrode effects.


Shipped in 24 pull requests
- [Structure Rework] Industrial Arc Furnace (GT5-Unofficial #6342)
- Remove plasma arc furnace recipes (NewHorizonsCoreMod #1829)
- Fix copper in arc furnace (GT5-Unofficial #5082)
- Fix Industrial Arc Furnace Mode Setting Waila (GT5-Unofficial #5527)
- Fix Industrial Arc Furnace Mode Setting Waila for 2.8 (GT5-Unofficial #5528)
- Add Arc Furnace description (GT5-Unofficial #6300)
- Fix oopsie in arc furnace tooltip (GT5-Unofficial #6710)
- Arc furnace fixes (GT5-Unofficial #6720)
- Reduce arc furnace recipe map size (GT5-Unofficial #6864)
- arc furnace fixes (GT5-Unofficial #6942)
- Fix ore mode in arc furnace (GT5-Unofficial #6951)
- fix autogen arc furnace conflicts (GT5-Unofficial #7005)
- Arc furnace fixes and adjustments (GT5-Unofficial #7229)
- Remove plasma arc furnace recipes (GT5-Unofficial #7258)
- arc furnace fix... again (GT5-Unofficial #7302)
- Check Industrial Arc Furnace outputs before ignition (GT5-Unofficial #7407)
- Arc furnace changes (GT5-Unofficial #7545)
- Change plasma arc furnace -> arc furnace, slicing recipes -> cutting (Minetweaker-Gregtech-5-Addon #73)
- revert arc furnace time changes (NewHorizonsCoreMod #1796)
- Fix IAF structure (GT5-Unofficial #7909)
- Electrode hatch modes and multiplier in electrode surge tooltip (GT5-Unofficial #7008)
- Add some machine mode gui buttons to multis which did not have them (GT5-Unofficial #5303)
- Revert "fix large arc furnace structure oddness" (GT5-Unofficial #5263)
- fix large arc furnace structure oddness (GT5-Unofficial #5212)
Watch on Discord - 1 video clip(s)
Industrial Mixer Structure Rework
The Industrial Mixer multiblock has been overhauled with a new structure design, improved casings, and performance tuning. Item pipe tiers now provide 100-1000% multiblock speed bonuses, and multiamp support is unlocked from infinity glass onwards. The old structure is deprecated but supported for one development cycle, with old controllers craftable into new ones.

Shipped in: GT5-Unofficial #5963
Other changes
- Fix crash when making chum in a mixer (GT5-Unofficial #7368)
- Fix mixer recipes (GT5-Unofficial #7170)
- Fix Mixer Multi controller tooltip to use correct casing name (GT5-Unofficial #7115)
- fix texture update on steam mixer (GT5-Unofficial #6480)
- Fix new mixer multiamp restrictions (GT5-Unofficial #6392)
- Fix enderium base dust mixer dust ratio (NewHorizonsCoreMod #1944)
- Adds Mixer Casing recipe in Assembler (NewHorizonsCoreMod #1696)
- Adds molten redstone to fluxed electrum dust mixer recipe (NewHorizonsCoreMod #1605)
Universal Chemical Fuel Engine Structure Rework
The Universal Chemical Fuel Engine multiblock has been completely restructured with a new, more interesting design. Hatch placement is now flexible instead of requiring 14 fixed Muffler and Input Hatches, while internal mechanics remain unchanged.


Shipped in: GT5-Unofficial #6312
Industrial Electrolyzer Structure Rework
The Industrial Electrolyzer multiblock receives a new structure design as part of the Multiblock Contest. The machine now provides 4 parallels per tier instead of 2, reducing machine spam, with the old structure deprecated over one development cycle and old controllers convertible to the new version via crafting table.

Shipped in: GT5-Unofficial #5908
Advanced Implosion Compressor Structure Rework
The Advanced Implosion Compressor multiblock has received a visual redesign with an improved structure layout. The internal mechanics remain unchanged, and the old structure is now deprecated with a conversion path via crafting table.


Shipped in: GT5-Unofficial #6317
Boldarnator Structure Rework
The Boldarnator multiblock structure has been redesigned so lava and water are now automatically placed when the machine forms, eliminating the need to manually supply them. The old structure is deprecated and the old controller can be converted to the new design via crafting table.

Shipped in: GT5-Unofficial #6319
Naquadah Fuel Refinery Structure Rework
The Naquadah Fuel Refinery has been completely restructured with a new design inspired by GT Odyssey. Hatches can now be placed freely anywhere on the multiblock, and +4 parallels per coil tier have been added to compensate for increased coil costs.



Shipped in: GT5-Unofficial #6252
Flotation Cell Structure Rework
The Froth Flotation Cell multiblock has been restructured with a new compact design from the community contest. The old structure is officially deprecated for one development cycle, during which the old controller can be crafted into the new one for easy transition.


Shipped in: GT5-Unofficial #6176
Industrial Maceration Stack Rework
The Industrial Maceration Stack has been completely restructured with a larger Tier 2 build that's compensated by a 4x speed buff. The old structure is deprecated but can be converted to the new one via a crafting recipe.



Shipped in: GT5-Unofficial #6271
Other changes
- fix typo in IMS tooltip (GT5-Unofficial #7580)
- Don't show macerator recipe when right-clicking arrow in any crafting table handler (GT5-Unofficial #7398)
- Preserve maceration stack upgrade chip when converting (GT5-Unofficial #7287)
- Re-add chili powder macerator recipe (GT5-Unofficial #7164)
- allow all glasses on Macerator and Rock Breaker (GT5-Unofficial #6559)
- Fix incorrect support bools for ZFP, TGS and IMS (GT5-Unofficial #6558)
- Remove Macerator/Pulverizer Machine Type (GT5-Unofficial #5218)
- Add Macerator Recipes for Magnesia Ingot/Nugget and Calcium Nugget (NewHorizonsCoreMod #1773)
- Special-case the macerator output for NaquadahEnriched clusters to us... (WitchingGadgets #132)
Industrial Centrifuge Structure Rework
The Industrial Centrifuge multiblock has been restructured with a new design that provides more space for hatch placement. The old structure is deprecated but will continue to work for one development cycle, with old controllers convertible to the new controller design.

Shipped in: GT5-Unofficial #5885
Other changes
- Industrial Centrifuge Momentum Mechanic (GT5-Unofficial #7270)
- put check in regular centrifuge to not run heavy mode recipes (GT5-Unofficial #6408)
- Remove Double Centrifuge Fluid Outputs From Fuel Rods (GT5-Unofficial #6330)
- Fix Thermal Centrifuge constructor name (GT5-Unofficial #6210)
- Thermal Centrifuge Strucutre Rework fixes (GT5-Unofficial #6181)
- Add Void Protection support to Industrial Centrifuge (GT5-Unofficial #5948)
- rename chamber centrifuge to spinmatron internally (GT5-Unofficial #5751)
- Make HTGR centrifuge recipes multiblock only (GT5-Unofficial #5407)
- Add a New ZPM+ Centrifuge Multiblock (GT5-Unofficial #4378)
- recipes for chamber centrifuge and fluids (NewHorizonsCoreMod #1290)
Tree Growth Simulator Structure Rework
The Tree Growth Simulator structure has been completely reworked with automatic wood and leaf placement, eliminating the need for manual block setup. Dirt blocks automatically convert to grass, and the old structure is deprecated with a conversion recipe in the crafting table.

Shipped in: GT5-Unofficial #6511
Large Naquadah Reactor Structure Rework
The Large Naquadah Reactor multiblock structure has been completely redesigned with improved layout and functionality. The old structure is deprecated but can be converted to the new controller via a crafting recipe during this transition period.


Shipped in: GT5-Unofficial #6359
Other changes
- fix new LNR structure symmetry (GT5-Unofficial #7355)
- remove explosion tooltips on multis that dont explode (GT5-Unofficial #7278)
- fixed small typo in amount of casing (GT5-Unofficial #7259)
- Structure rework cleanup (GT5-Unofficial #6877)
Mega Chemical Reactor Structure Rework
The Mega Chemical Reactor has been restructured with flexible hatch placement-any hatch can now be placed anywhere, though only one energy hatch is allowed per machine. The new design features an updated overlay texture to distinguish it from the Large Chemical Reactor, and Eternal Coils now glow when active.



Shipped in: GT5-Unofficial #5893, GT5-Unofficial #5944
Molecular Transformer Structure Rework
The Molecular Transformer multiblock has been restructured with a new compact design from the community contest. The old structure is officially deprecated for one development cycle, and old controllers can be converted to the new design via crafting.


Shipped in: GT5-Unofficial #6182
Extreme Industrial Greenhouse Structure Rework
The Extreme Industrial Greenhouse multiblock has been completely redesigned with improved visuals and new quality-of-life features. The structure now automatically tills dirt and places water blocks after validation, and supports autoplace for faster construction.

Shipped in: GT5-Unofficial #5875
Watch on Discord - 1 video clip(s)
Industrial Extruder Structure Rework
The Industrial Extrusion Machine has been restructured with an improved design and increased to 6 parallels per voltage tier. A new Forming Core block with connected textures support is now used in this and other machines. The old structure is deprecated but can be converted to the new design.


Shipped in: GT5-Unofficial #6326, GT5-Unofficial #6334
Electric Implosion Compressor Rework
The Electric Implosion Compressor structure has been redesigned with numerous improvements. The new design removes duplication exploits, reduces the required containment blocks, ties energy hatch tier to glass tier, and allows hatches to be placed more flexibly anywhere on the structure.


Shipped in: GT5-Unofficial #6339
Other changes
- Removes the tiered label for glass in EIC tooltip (GT5-Unofficial #7438)
- Fix EIC not accepting Energy Hatches above UMV (GT5-Unofficial #6547)
- fix index out of bounds in MTEElectricImplosionCompressor#resetPiston (GT5-Unofficial #5962)
- Fix bug of Electric Implosion Compressor dupe blocks (GT5-Unofficial #5504)
- Explosion Warning Sign -> Explosion Hazard Sign (GT5-Unofficial #5132)
- Give back blocks after changing config of EIC (GT5-Unofficial #5113)
Industrial Packager Structure & Progression Rework
The Industrial Packager has been restructured with a new design and now features tiered recipe speeds based on pipe casing tier, ranging from 100% to 800%, making it up to 25% faster at maximum tier than before. The old structure is deprecated but remains functional for one development cycle, with old controllers convertible to the new design.

Shipped in: GT5-Unofficial #5888
Extreme Combustion Engine Structure Rework
The Extreme Combustion Engine multiblock has been restructured with a new contest-winning design. Muffler and Maintenance hatches can now be placed on any Tungstensteel Casing for more flexible building. The old structure is deprecated but will continue to work during this development cycle, with a crafting recipe to convert old controllers to the new design.


Shipped in: GT5-Unofficial #6349
Large Combustion Engine Structure Rework
The Large Combustion Engine multiblock has been restructured with improved flexibility in muffler and maintenance placement, which can now go on any Titanium Casing. The old structure is deprecated but can be converted to the new design via crafting table.


Shipped in: GT5-Unofficial #6340
Industrial Wiremill Structure Rework
The Industrial Wiremill multiblock has been redesigned with a new structure offering more casing space. Item pipe tiers now provide speed multipliers up to 400% (increased from 300%), with deprecated old controllers convertible to new ones.

Shipped in: GT5-Unofficial #5877
Industrial Forming Press / Bending Machine Rework
The Industrial Bending Machine and Industrial Forming Press have been separated into two distinct multiblock structures. The old machine controller can be converted into the new ones using shaped crafting recipes, and the old structure is deprecated.
Shipped in: GT5-Unofficial #6356
Multiblock Structure Rework Contest Results
The Multiblock Structure Rework Contest is complete, and winning designs are being released as new multiblock controllers. Existing multiblocks continue to work but will be deprecated with a "-Legacy" suffix, with migration required before version 2.10.0. Contest winners will be credited in the controller tooltips.
Shipped in 10 pull requests
- [Structure Rework] Industrial Electrolyzer (GT5-Unofficial #5908)
- Add ContributorList and structure author support (GT5-Unofficial #5880)
- Rework Steam Blender (GT5-Unofficial #5930)
- [Structure Rework] industrial mixer (GT5-Unofficial #5963)
- Fix structure rework multies' overrides (GT5-Unofficial #5989)
- [Structure Rework] Industrial Thermal Centrifuge (GT5-Unofficial #6171)
- [Structure Rework] Flotation Cell (GT5-Unofficial #6176)
- [Structure Rework] Molecular transformer (GT5-Unofficial #6182)
- [Structure Rework] Boilers (GT5-Unofficial #6251)
- fix the NAC recipes using deprecated controllers. (NewHorizonsCoreMod #1614)
Steam Blender Structure Rework
The Steam Blender multiblock has been restructured to be significantly cheaper (~66%) and more compact, reducing its footprint from 7×6×7 to 5×4×5. A conversion recipe is provided to upgrade existing Steam Blenders to the new structure.

Shipped in: GT5-Unofficial #5930
Improved Multi-block Diagnostics Feedback
GregTech multiblocks now provide detailed feedback about missing hatches, buses, and casings, including their exact locations. A clickable button highlights missing blocks in the world, making it much easier to diagnose and fix building mistakes.



Shipped in: GT5-Unofficial #6538
Mega Distillation Tower Structure Rework
The Mega Distillation Tower has been reworked with a new structure and is now unlocked at LuV tier with Naquadah, featuring significantly improved power and speed capabilities. The multi now has 5 tiers instead of 10, ranging from 3 output hatches at tier 1 to 11 at tier 5, and can utilize distillery mode.



Shipped in: GT5-Unofficial #6868, GT5-Unofficial #6756, GT5-Unofficial #7013
Other changes
- [Breaking] Fix Incorrect Bronze Pipe Casing Placement on MDT (GT5-Unofficial #7725)
- increase input hatch space of mdt (GT5-Unofficial #7623)
- adjust MDT and Dangote numbers to give MDT a use case (GT5-Unofficial #7576)
- mdt hint and screwdriver mode switch fix (GT5-Unofficial #6905)
Pyrolyse Oven Structure Rework
The Pyrolyse Oven multiblock has been restructured with a new design. The old controller can be converted into the new one in a crafting table during the deprecation period.


Shipped in: GT5-Unofficial #6313
Algae Pond structure rework
The Algae Pond structure has been completely redesigned with a fresh appearance and mechanical overhaul. If you built one before, you'll need to dismantle and rebuild it with the new structure - the energy hatch tier now scales with glass tier, accepts only 1 hatch, and is significantly more energy efficient.

- Completely new structure design with improved visual appearance
- Energy efficiency increases based on hatch tier
- Energy hatch tier is capped by glass tier, with only 1 hatch slot
- Survival-buildable structure with clear construction guides
- Old Algae Pond (Legacy) available for recipes if needed
What to do: Rebuild your existing Algae Pond using the new structure.


Shipped in: GT5-Unofficial #6534
Froth Flotation Cell
The Flotation Cell structure received a full rework with improved casing amounts and expanded hatch space. Fixed material and cell registration issues with GT++ additions, and added water placement support to the Clarifier and Flotation Cell.
Shipped in: GT5-Unofficial #7490, GT5-Unofficial #6686, GT5-Unofficial #6293, GT5-Unofficial #6240, GT5-Unofficial #6222, GT5-Unofficial #6176
Industrial 3D Copying Machine structure rework
The Industrial 3D Copying Machine has been restructured with a new, more compact internal layout. If you already built one, you'll need to dismantle and rebuild it with the new design - the mechanics otherwise remain the same.

- New compact structure design with improved internal layout
- Same core mechanics and recipes
- Survival-buildable structure with clear guidelines
- Old Industrial 3D Copying Machine (Legacy) still available for crafting recipes
What to do: Rebuild your existing Industrial 3D Copying Machine with the new structure.


Shipped in: GT5-Unofficial #6519
Industrial Chisel
The Industrial 3D Copying Machine received a full structure rework with improved default mode and mode GUI buttons. Added ArchitectureCraft compatibility and clarified tooltips, while deprecating IC2 Iron Fence and improving chisel hatch handling.
Shipped in: GT5-Unofficial #7196, GT5-Unofficial #6786, GT5-Unofficial #6754, GT5-Unofficial #6519, GT5-Unofficial #6133, GT5-Unofficial #5992, GT5-Unofficial #5745
Industrial Coke Oven structure rework
The Industrial Coke Oven has been completely restructured with a scalable coil design. Existing Industrial Coke Oven machines stay working as the Legacy version, but you can craft a new controller to build the improved version or convert your old controller via recipe.
- Scalable from 1 to 16+ coil slices for flexible multiblock sizing
- 2% EU discount per coil tier - higher tiers mean better efficiency
- 16 base parallels for processing multiple recipes simultaneously
- Unlimited coil slices when using eternal coils
- Old Industrial Coke Oven (Legacy) remains functional for existing builds
What to do: Convert your Industrial Coke Oven controller to the new version via recipe, or craft a new controller to build the improved structure.


Shipped in: GT5-Unofficial #6391
Industrial Sledgehammer / Forge Hammer structure rework
The Industrial Sledgehammer / Forge Hammer was rebuilt with a new structure.



Shipped in: GT5-Unofficial #6530
Industrial Washer
Washer and chemical bath corrections.
Shipped in: GT5-Unofficial #6873, GT5-Unofficial #6415, GT5-Unofficial #6371, GT5-Unofficial #5656, GT5-Unofficial #5247
Industrial Washer / Industrial Chemical Bath structure rework
The Industrial Washer / Industrial Chemical Bath was rebuilt with a new structure.



Shipped in: GT5-Unofficial #6371
Infinite Fluid Drilling Rig structure rework
The Infinite Fluid Drilling Rig has been restructured into a more compact design with enhanced bonuses. Existing machines are now called Infinite Fluid Drilling Rig -Legacy and will continue to work, but you can craft the new controller or convert your old one via recipe to get the improved version with additional parallels per energy hatch tier and no need for output pipes.
- Compact new multiblock structure requiring less space
- Bonus parallels scale with energy hatch tier
- Eliminates the need for fluid output pipes
- Conversion recipe available to upgrade existing controllers
- Legacy version preserved for backward compatibility
- Buildable in Survival mode with proper support blocks
What to do: Rebuild your machine with the new controller, or use the conversion recipe to upgrade your existing controller to gain the new bonuses.


Shipped in: GT5-Unofficial #6508
Large Boiler
Boilers across the tiers: muffler buttons on the steam boilers, NEI numbers that match reality, pollution removed from the Thermal Boiler, and WAILA improvements.
Shipped in 17 pull requests
- Remove math imprecision between NEI and reality in Large Boiler (GT5-Unofficial #7614)
- Fixed boiler theme (GT5-Unofficial #7377)
- Fix Thermal Boiler Still Requiring Pollution (GT5-Unofficial #7232)
- Remove Pollution in Thermal Boiler Tooltip (GT5-Unofficial #7197)
- GT Large Boiler improvements part 2 (GT5-Unofficial #7091)
- Add muffler button to all steam boilers (GT5-Unofficial #7018)
- fix thermal boilers water consumption (GT5-Unofficial #6798)
- Fix boiler fuel indicator and improve GUI readability (GT5-Unofficial #6571)
- [Structure Rework] Thermal Boiler (GT5-Unofficial #6473)
- Lava thermal boiler tooltip update (GT5-Unofficial #5969)
- Clean up dead code in boilers from MUI2 port (GT5-Unofficial #5560)
- Add overlay when solar boiler is calcified (GT5-Unofficial #5557)
- fix recycling for solar boilers (GT5-Unofficial #5379)
- Advanced Boiler: Return buckets for consumed fuel (GT5-Unofficial #5166)
- Fix Large Boilers using fluid fuels (GT5-Unofficial #4945)
- Localize MultiBlockBase stuff (GT5-Unofficial #7149)
- Improve explosion logging (GT5-Unofficial #6162)
Large Sifter structure rework
The Large Sifter has been restructured with an improved layout and modernized architecture. Existing machines are now called Large Sifter -Legacy and will continue to function, but you'll need to craft the new controller or convert your old one via recipe to use the redesigned structure.

- Improved multiblock layout with better casing placement
- Ported to modern extended power multiblock base for consistency
- Conversion recipe available to upgrade existing controllers
- Legacy version preserved for backward compatibility
- Buildable in Survival mode with proper support blocks
- Enhanced internal architecture and maintainability
What to do: Rebuild your machine with the new controller, or use the conversion recipe to upgrade your existing controller.


Shipped in: GT5-Unofficial #6533
Large Turbines structure rework
The Large Turbines was rebuilt with a new structure.



Shipped in: GT5-Unofficial #6546
Steam Grinder structure rework
The Steam Grinder has received a visual update with a slightly increased build cost. If you have an existing Steam Grinder, it will continue to work, but you may want to rebuild it to match the new design.

- Redesigned structure with improved visuals
- Build cost increased by 2 ingots
- Existing structures remain functional but differ from the new layout
What to do: Optionally rebuild your Steam Grinder with the updated structure for the new look, or keep your existing one running.
Shipped in: GT5-Unofficial #6471
Steam Squasher (compressor) structure rework
The Steam Squasher (compressor) was rebuilt with a new structure.

Shipped in: GT5-Unofficial #6545
Thermal Boiler structure rework
The Thermal Boiler has been redesigned using a community-contest winning design. Your existing Thermal Boiler machines will continue to work as the Legacy version, but a new controller is required for the updated structure.
- New structure design from community contest with proper attribution
- Updated dimensions and build cost
- Legacy mode preserves old Thermal Boiler functionality
- Conversion recipe available to upgrade old controllers to the new design
What to do: Craft a new Thermal Boiler controller for the updated structure, or use a conversion recipe to upgrade your existing controller.


Shipped in: GT5-Unofficial #6473
Other changes
- Remove Pollution in Thermal Boiler Tooltip (GT5-Unofficial #7197)
- fix thermal boilers water consumption (GT5-Unofficial #6798)
- Improve explosion logging (GT5-Unofficial #6162)
- Lava thermal boiler tooltip update (GT5-Unofficial #5969)
Tree Farm
Tree Grow Simulator structure reworked with fixed overclock behavior and proper sapling compatibility across all variants. NEI population issue resolved and air block references replaced, while fixing saplings that were being rounded to zero.
Shipped in: GT5-Unofficial #7739, GT5-Unofficial #7588, GT5-Unofficial #7399, GT5-Unofficial #6661, GT5-Unofficial #6624, GT5-Unofficial #6558, GT5-Unofficial #6511, GT5-Unofficial #6273
Turbines
Large and XL turbines: structure reworks, rotor handling and efficiency reporting.
Shipped in 11 pull requests
- add NEI turbine fuel and rotor data dumpers (GT5-Unofficial #6737)
- Fix a few Large Turbine recipes (GT5-Unofficial #6702)
- [Structure Rework] XL Turbines (GT5-Unofficial #6562)
- [Structure Rework] Large Turbines (GT5-Unofficial #6546)
- Change Turbine Shaft Into Assembler Recipe (GT5-Unofficial #5825)
- Fixed Larger Turbine not filtering invalid hatches (GT5-Unofficial #5693)
- Fix Electric Air Filter turbine texture pointing sideways (GT5-Unofficial #5610)
- [MUI2] turbine hatch (GT5-Unofficial #5596)
- [MUI2] Port turbine holder (GT5-Unofficial #5582)
- Update Turbine Recipes for Sttructure Rework (NewHorizonsCoreMod #1730)
- Fixes a typo in the description for the hydro turbine. (HydroEnergy #39)
XL Turbines structure rework
XL Turbines have been restructured with a new community-designed layout by VorTex. The rotor assembly system has been replaced with a GUI-based turbine slot system. All existing XL Turbine variants (Gas, HPSteam, SCSteam, and Plasma) follow the new structure.

- Community-designed structure by VorTex
- GUI-based turbine slot system replaces rotor assembly
- New extended-power multiblock base for better scalability
- All variants (Gas, HPSteam, SCSteam, Plasma) updated to new structure
- Conversion recipes available to upgrade old turbine controllers
What to do: Disassemble all existing XL Turbines and rebuild them using the new structure, then use conversion recipes to upgrade your old controllers.


Shipped in: GT5-Unofficial #6562
Structure rework groundwork
The parts of the structure rework push that belong to no single machine: the shared migration handling, the controller and item registrations the new structures needed, and the recipe corrections that followed them.
Shipped in: GT5-Unofficial #5894, GT5-Unofficial #5991, GT5-Unofficial #6423, GT5-Unofficial #6855, GT5-Unofficial #6877, NewHorizonsCoreMod #1719, NewHorizonsCoreMod #1756