Laser Bridges & Doors in FTB Skies 2: Aero
FTB Skies 2: Aero 1.13.0 ships version 6 · First seen in 1.0.3
Laser Bridges & Doors is a mod in FTB Skies 2: Aero 1.13.0, where it is version 6. Adds laser sources that create laser platforms and doors when powered (Summary from the mod's Modrinth page.)
Laser Bridges & Doors guide for FTB Skies 2: Aero
Last verified for FTB Skies 2: Aero v1.10.0 on Oct 16, 2026 · text last changed Oct 16, 2026
This is the newest guide. It hasn't been checked against 1.13.0 yet.
Also applies to:All the Mods 10 1.8 to 2.38All the Mods 11 0.1.0 to 0.12.0-betaAll the Mons 0.3.0-beta to 1.3.0FTB Evolution 2 1.0.2 to 1.4.0FTB Skies 2 1.0.1 to 1.24.0
- Sections
- 6
- Recipes shown
- 11
- Items named
- 4
4 sections are written for this pack; 2 are shared from another pack's guide.
Every recipe and number here was checked against FTB Skies 2: Aero 1.10.0, read from the running game on Sep 22, 2026.
What is Laser Bridges & Doors?
2 parts
Same as in the All the Mods 10 2.38 guide
Laser Bridges & Doors is a small, decorative redstone mod that gives you futuristic laser bridges, doors and fences. You place a laser source block, give it a redstone signal, and it projects a laser structure outward. This pack ships version 1.21.1-1-neoforge of the mod.[1][2]
How it works
- The laser only forms while the source block is powered by redstone, so a lever, button or pressure plate is enough to open and close a laser door or bridge.[1]
- The length of the laser depends on the redstone signal strength and updates as the signal changes. A weaker signal gives you a shorter bridge.[1]
- You can recolor a laser source by clicking it with a dye in hand, or have a dispenser apply the dye for you.[1]
- There are full block laser sources for more complex redstone contraptions, plus a Laser Fence Source Block variant for laser fences.[1]
The mod is configurable. One option sets the maximum laser length at full power, and all partial lengths are calculated from it. The mod's own default is 15 blocks. Another option lists the blocks that lasers are allowed to cut through and replace.[1]
Unverified The sources don't confirm whether this pack keeps the mod's default maximum laser length or changes it. Test it in game before you plan a long bridge.
Who it's for
If you like building bases with a sci-fi look, secret entrances or redstone-controlled walkways, this mod is for you. Its job is style and redstone fun rather than tech or resource progression.[1]
Unverified The sources don't document a place for this mod in the pack's progression, and no in-pack recipe for the laser source blocks could be confirmed. Check the recipe viewer in game. This site does hold FTB Skies 2: Aero's own recipes, read from the pack itself: look the item up in the item browser.
How do you get started with Laser Bridges & Doors?
4 parts
Laser Bridges & Doors adds laser sources that build laser platforms and doors when you power them with redstone. Everything starts from one basic item, so the order below is short and easy to follow.[1]
Step 1: Craft a Laser Source
Your first craft is the Laser Source. It is the building block for every other item in this mod, so make a few before you do anything else.[3][4]
Crafting Shaped
Recipe id: laserbridges:laser_source_block
The mod's own recipe gives you two Laser Sources per craft.
Crafting Shaped
Recipe id: deimos:deimosgeneratedcrafting0
The pack also adds its own recipe for the same item, using the same ingredients, and it makes a single one.
Step 2: Get the fence version
The Laser Fence Source is the fence variant of the source. You can craft it from scratch, but you don't need to: you can swap a Laser Source into a Laser Fence Source and back again, so spare sources are never wasted.[1][3]
Crafting Shaped
Recipe id: deimos:deimosgeneratedcrafting1
Crafting the fence source directly.
Turn a Laser Source into a Laser Fence Source.
And turn it back again.
Step 3: Full block sources for contraptions
Once you have the basics, make the full block versions: Laser Source Block and Laser Fence Source Block. The mod describes these as the ones to use for more complicated redstone contraptions. Each is crafted from its matching smaller source, and the two full blocks can be converted into each other too.[1][3][4]
Crafting Shaped
| Empty slot | Empty slot | |
Recipe id: deimos:deimosgeneratedcrafting4
Laser Source Block, made from a Laser Source.
Crafting Shaped
| Empty slot | ||
| Empty slot |
Recipe id: deimos:deimosgeneratedcrafting5
Laser Fence Source Block, made from a Laser Fence Source.
Step 4: Power it and tune it
A laser only forms when its source receives a redstone signal, and its length follows the signal strength, updating as the signal changes. You can also color a source by clicking it with a dye, or by using a dispenser to apply the dye.[1]
In this pack, max_length is set to 15. That is the length of a laser from a fully powered source, and weaker signals give shorter lengths calculated from it.[1][5]
How does Laser Bridges & Doors work?
4 parts
Laser Bridges & Doors is a redstone-driven mod. You place a laser source, give it a redstone signal, and it projects a futuristic bridge, door or fence. The sources here don't show any other power, fluid or item handling, so everything below is about redstone, length and the source blocks.[1]
Redstone and beam length
A laser only forms while its source is activated by a redstone signal. The beam's length depends on the strength of that signal and updates dynamically, so you can lengthen or shorten a bridge just by changing the signal feeding the source.[1]
The cap is set by max_length. It is the length of a beam from a fully powered source, and every shorter length is calculated from that value. This pack sets it to 15.[1][5]
What a laser can replace
blocks_cut_through_by_lasers is the list of blocks a laser is allowed to replace. In this pack it holds air, cave air, void air, short grass, tall grass, fern, large fern and dead bush. Anything not on that list is not replaced, so plan your bridge path around solid blocks.[1][5]
The source blocks
There are four source blocks: Laser Source, Laser Fence Source, and their full block versions Laser Source Block and Laser Fence Source Block. The full block versions are the ones to use for more complicated redstone contraptions.[1][4]
You can color a source by clicking on it with a dye in hand, or by having a dispenser apply the dye.[1]
Crafting and converting
The mod's own recipe for the Laser Source is below. It makes 2 sources per craft.[3]
Crafting Shaped
Recipe id: laserbridges:laser_source_block
The mod's own recipe: one craft gives you 2 Laser Sources.
The pack also adds its own crafting recipes for these blocks, so you have more than one way to get a source.[3]
You can swap a Laser Source for a Laser Fence Source with a single shapeless craft, and the conversion works both ways. That means you never need to commit to one type when you craft.[1][3]
Turns a Laser Source into a Laser Fence Source.
Turns a Laser Fence Source back into a Laser Source.
The full block versions come from the normal sources. Crafting with a Laser Source gives the Laser Source Block, and crafting with a Laser Fence Source gives the Laser Fence Source Block. Both of these recipes are added by this pack.[3]
Crafting Shaped
| Empty slot | Empty slot | |
Recipe id: deimos:deimosgeneratedcrafting4
Laser Source to Laser Source Block (pack recipe).
Crafting Shaped
| Empty slot | ||
| Empty slot |
Recipe id: deimos:deimosgeneratedcrafting5
Laser Fence Source to Laser Fence Source Block (pack recipe).
The two full blocks can also be converted into each other with a shapeless craft.[3]
Crafting Shapeless
Recipe id: deimos:deimosgeneratedcrafting6
Laser Source Block to Laser Fence Source Block (pack recipe).
Laser Fence Source Block back to Laser Source Block (pack recipe).
How do you progress through Laser Bridges & Doors?
3 parts
There is no ladder of upgrades with this mod in the pack. The recipes show four items in two pairs: a bridge source and a fence source, each as a small block and as a full block. Everything starts from the small blocks, and the full blocks are made from them.[3]
Step 1: Laser Source and Laser Fence Source
The Laser Source is the entry point for the bridge side. The mod's own recipe, shown below, makes 2 of them per craft.[3]
Crafting Shaped
Recipe id: laserbridges:laser_source_block
The mod's own recipe: one craft gives 2 Laser Sources.
The pack also adds its own Laser Source recipe, and the recipe dump lists it with a single output. Both recipes appear in the dump.[3]
Crafting Shaped
Recipe id: deimos:deimosgeneratedcrafting0
Added by the pack, with a single Laser Source as output.
The Laser Fence Source has its own pack-added recipe, which takes the same three ingredients as the Laser Source recipes.[3]
Crafting Shaped
Recipe id: deimos:deimosgeneratedcrafting1
Added by the pack.
Switching between bridge and fence
You never have to commit to one type. A single Laser Source converts into a Laser Fence Source and back again, so a wrong craft is easy to fix. The mod has these conversions built in, and the pack adds matching ones.[3]
Mod recipe: Laser Source to Laser Fence Source.
Mod recipe: Laser Fence Source back to Laser Source.
Added by the pack: the same bridge to fence conversion.
Added by the pack: the same fence to bridge conversion.
Step 2: the full blocks
The Laser Source Block and Laser Fence Source Block are made from the small block of the matching type. The recipe blocks below show exactly what goes in.[3]
Crafting Shaped
| Empty slot | Empty slot | |
Recipe id: deimos:deimosgeneratedcrafting4
Added by the pack: Laser Source into Laser Source Block.
Crafting Shaped
| Empty slot | ||
| Empty slot |
Recipe id: deimos:deimosgeneratedcrafting5
Added by the pack: Laser Fence Source into Laser Fence Source Block.
The full blocks convert into each other the same way the small ones do, with one pack-added recipe in each direction.[3]
Crafting Shapeless
Recipe id: deimos:deimosgeneratedcrafting6
Added by the pack: Laser Source Block to Laser Fence Source Block.
Added by the pack: Laser Fence Source Block back to Laser Source Block.
Those pack-added recipes are registered under the Deimos namespace, while the base source and the bridge and fence conversions also exist as recipes from Laser Bridges & Doors itself.[3]
Unverified The sources here do not show where, or whether, the pack's quest book places Laser Bridges & Doors in its progression, so no quest chapter or ordering is given for this mod.
Which Laser Bridges & Doors config options matter?
2 parts
Same as in the FTB Skies 2 1.22.0 guide
The mod has only two config options, both in config/laserbridges.json. You can change them in-game or by editing the JSON file directly. Here is what each one does and how this pack sets it.[1]
Maximum laser length
max_length is the longest laser a fully powered laser source block can produce. Shorter lasers are calculated from this value, so changing it rescales every bridge, door and fence. Laser length depends on the redstone signal strength, so a weaker signal gives a shorter laser.[1]
This pack sets it to 15, which is also the mod's default. The pack did not change this value, so a fully powered source reaches 15 blocks.[1][6]
Blocks lasers cut through
blocks_cut_through_by_lasers is the list of blocks a laser can replace instead of being stopped by them. Anything not on the list blocks the laser.[1]
In this pack the list contains these blocks:[6]
- Air, cave air and void air, so lasers pass through empty space in any dimension or cave.[6]
- Short grass and tall grass.[6]
- Fern and large fern.[6]
- Dead bush.[6]
Unverified The sources do not show the mod's default for the cut-through list, so we can't say whether the pack changed it.
What changed in Laser Bridges & Doors between versions?
1 part
FTB Skies 2: Aero 1.10.0 ships Laser Bridges & Doors 6, and the mod has been in the pack since 1.0.3 or earlier. The pack changelogs have no entries for this mod, so everything below comes from the mod's own changelogs.[7]
Mod changelog highlights
- Version 6 (the version in this pack): added full block laser sources.[7][8]
- Version 5.3: added a missing translation for the laser blocks and fixed coloring of laser sources on newer versions.[9]
If you are coming from an older pack release, the full block laser sources from version 6 are the main addition to look for.[7][8]
Sources
- Laser Bridges & Doors project page (modrinth) · official mod data
- All the Mods 10 2.38 mod list · pack file
- FTB Skies 2: Aero 1.10.0 recipe dump: recipes making Laser Bridges & Doors items · pack recipe dump
- laserbridges names, screen text and descriptions (English lang file) · official mod data
- FTB Skies 2: Aero 1.10.0 config: config/laserbridges.json · pack file
- FTB Skies 2 1.22.0 config: config/laserbridges.json · pack file
- FTB Skies 2: Aero 1.10.0 mod list · pack file
- Laser Bridges & Doors 6 changelog · changelog
- Laser Bridges & Doors 5.3 changelog · changelog
Where this guide comes from
Written from what FTB Skies 2: Aero itself ships: its files and recipes, the in-game guidebooks and the mods' own pages. Every statement links to the source it came from, and the numbers are checked against the pack before publishing.
Guide last verified Oct 16, 2026.
Guides for other versions: 1.0.3 to 1.5.1
Report wrong info
Version in each release
21 releases, first in 1.0.3
| FTB Skies 2: Aero | Version | Jar | Where it came from |
|---|---|---|---|
| 1.13.0 Sep 28, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.12.1 Sep 22, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.12.0 Sep 21, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.10.0 Sep 8, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.9.1 Sep 2, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.9.0 Sep 1, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.8.0 Aug 25, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.7.3 Aug 19, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.7.2 Aug 18, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.7.1 Aug 18, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.6.1 Aug 13, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.6.0 Aug 11, 2026 | 6 | laserbridges-1.21.1-neoforge-6.jar | From the published release |
| 1.5.1 Aug 8, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.4.1 Aug 4, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.4.0 Aug 3, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.3.0 Jul 30, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.2.1 Jul 28, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.2.0 Jul 28, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.1.1 Jul 25, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.1.0 Jul 24, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
| 1.0.3 Jul 17, 2026 | 5.3 | laserbridges-1.21.1-neoforge-5.3.jar | From the published release |
"From pack files" means the list came from the pack's own files; "from the published release" means ForgeBase read the jars of the release itself.
Items and blocks
4 items from the 1.10.0 recipe dump.
Config options (how FTB Skies 2: Aero sets them)
2 settings this pack ships for the mod. We don't have the mod's own defaults to compare them against yet.
Show settings
| Setting | FTB Skies 2: Aero value |
|---|---|
blocks_cut_through_by_lasers config/laserbridges.json | ["minecraft:air","minecraft:cave_air","minecraft:void_air","minecraft:short_grass","minecraft:tall_grass","minecraft:fern","minecraft:large_fern","minecraft:dead_bush"] |
max_length config/laserbridges.json | 15 |
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