Compact Machines in FTB Skies 2: Aero

FTB Skies 2: Aero 1.13.0 ships version 7.0.81 · First seen in 1.0.3

Checked Sep 20, 2026FTB Skies 2: Aero 1.13.0Sources: FTB Skies 2: Aero 1.13.0 modlist.json

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Also in 6 other packs →

Compact Machines is a mod in FTB Skies 2: Aero 1.13.0, where it is version 7.0.81. Adds one simple game mechanic: Small rooms inside of blocks. It basically gives you the ability to build your contraptions inside of a single block. (Summary from the mod's Modrinth page.)

Compact Machines guide for FTB Skies 2: Aero

Written for FTB Skies 2: Aero 1.10.0 · updated Oct 17, 2026

Last verified for FTB Skies 2: Aero v1.10.0 on Oct 17, 2026 · text last changed Oct 17, 2026

This is the newest guide. It hasn't been checked against 1.13.0 yet.

Also applies to:All the Mods 10 2.21 to 2.36FTB Skies 2 1.23.0 to 1.24.0

Sections
5
Recipes shown
12
Items named
5

3 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 Compact Machines?

Same as in the FTB Skies 2 1.23.0 guide

Compact Machines is part of the pack's mod list. This pack ships version 7.0.81, the NeoForge build (compactmachines-neoforge-7.0.81.jar).[1]

It isn't a new addition. The mod was already in the pack as of version 1.0.1 or earlier, so it has been around for a long time.[1]

I don't have enough information to describe the mod's items, recipes or mechanics as they work in this pack, so I'm leaving those out rather than guessing. Check back for the sections that cover them once they're confirmed.[1]

How do you get started with Compact Machines?

5 parts

Compact Machines lets you craft a machine, place it in the world, and then step inside it, because each machine is a pocket dimension. You get in by using a Personal Shrinking Device (the PSD) on a placed machine. So the first goal is simple: get a PSD and get a machine.[2]

Step 1: Compact Machine Walls

Start with Compact Machine Wall. It is a plain crafting recipe from the mod, and one craft gives you 8 walls, so you won't need many crafts.[3]

Crafting Shaped

8 × Polished Deepslate

Recipe id: compactmachines:wall

Step 2: The two modules

Next come the Atom Shrinking Module and the Atom Enlarging Module. Both are shaped crafting recipes straight from the mod, and you'll want one of each.[3]

Step 3: The Personal Shrinking Device

The PSD is your key to every machine. This pack changed its recipe, so don't trust a recipe from other versions or modpacks. Check the one below. It takes both modules, which is why you made them first.[3]

Personal Shrinking DeviceChanged by the pack

Crafting Shaped

Crafting Shaped
Iron Nuggetany glass panesIron Nugget
Atom Enlarging ModuleEnder EyeAtom Shrinking Module
Iron IngotCopper IngotIron Ingot

Recipe id: compactmachines:personal_shrinking_device

Once you hold one, use it on a placed machine to enter the compact space.[2]

Step 4: Your first machine

The machine item is New Machine. The pack adds recipes for it under these ids: tiny, small, normal, large, giant, massive, colossal and farming. The tiny and colossal ones are shown below, and the other sizes follow the same pattern in the pack's recipe list. The colossal recipe is a shaped crafting recipe in which the wall and both modules appear. The others are miniaturization recipes.[3]

New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_tiny

Good to know

  • The pack keeps recipes.vanillaRecipes set to true, which the config describes as enabling vanilla-style recipes.[4]
  • There is a key binding called "Quick-Exit Compact Machine" for leaving a room fast, and another for opening the room upgrade screen.[2]
  • The mod has a game rule that can damage shrinking devices when you leave rooms. I can't confirm from the sources whether it is switched on in this pack, so keep an eye on your PSD's durability.[2]
  • If you run a server, commands.permLevels.give sets the command level needed to give machines to players. It is 2 here, the same as the mod default.[5]

How does Compact Machines work?

6 parts

Compact Machines lets you craft a machine block, place it in the world and step inside it to reach a pocket dimension. The pack's recipe viewer describes it the same way: craft a machine, place it, then use a Personal Shrinking Device (the PSD) on it to enter.[2]

Getting in and out

The PSD is your key to the compact space. You use it on a placed machine to go inside. Each machine is bound to a room of a particular size at a particular position, and the mod can report that binding as text, for example which size of room a machine at a given spot is bound to.[2]

There are two keybinds in the Compact Machines category: one for a quick exit from the machine you are in, and one that opens the room upgrade screen.[2]

If you have Jade, there are options for showing bound Compact Machines and for showing machine owners.[2]

Tip: Leaving rooms can damage shrinking devices. The mod has a game rule described as "Damage shrinking devices by leaving rooms", so keep an eye on your PSD if that rule is enabled on your world. The sources don't give its default value.[2]

Staying inside the room

The mod has game rules for players who end up out of bounds. There are separate rules to allow out-of-bounds creative players, spectators and survival players, plus a rule to damage players who are out of bounds. The sources only give descriptions, not the default values, so check them on your own world.[2]

Crafting the pieces

Compact Machine Wall is the basic building material. One craft gives you 8 walls.[3]

Crafting Shaped

8 × Polished Deepslate

Recipe id: compactmachines:wall

The PSD needs both an Atom Shrinking Module and an Atom Enlarging Module as crafted parts. The pack changed the PSD recipe from the mod's version, so go by the one below.[3]

Personal Shrinking DeviceChanged by the pack

Crafting Shaped

Crafting Shaped
Iron Nuggetany glass panesIron Nugget
Atom Enlarging ModuleEnder EyeAtom Shrinking Module
Iron IngotCopper IngotIron Ingot

Recipe id: compactmachines:personal_shrinking_device

This recipe was changed by the pack.

The pack adds its own recipes for New Machine in several sizes: tiny, small, normal, large, giant, massive and colossal, plus a farming variant. Most of these use the miniaturization recipe type, so look them up in the recipe viewer. The colossal machine is the one with a normal crafting-grid recipe.[3]

This recipe was added by the pack.

The common config has recipes.vanillaRecipes set to true, described as enabling vanilla-style recipes.[4]

Room templates and the Spatial Tinkerer

Some room templates generate structures when a room is created, and their tooltip tells you so. The mod also adds a villager profession called the Spatial Tinkerer. The sources don't say what the Tinkerer trades or does.[2]

Admin commands

Four command permission levels are set in the server config. In this pack all four are 2 (OP), the same as the mod default, with a range of 0 to 4 (0 is everyone, 1 admin, 2 OP, 4 owner).[5]

Starting PSD for team members

The pack has a script that checks for a Compact Machines block near a team's base spawn when the base is created. If it finds one, the team gets a Compact Machines start stage. After that, a player who joins the team's party and is not the team owner receives one PSD, once only.[6]

How do you progress through Compact Machines?

4 parts

There's no long tech tree to climb here. Progression with Compact Machines in this pack is a crafting chain: walls and modules first, then the Personal Shrinking Device, then the machines themselves, tier by tier. Everything below comes from the in-pack recipes.[3]

Step 1: walls and modules

Everything starts with the Compact Machine Wall. One crafting recipe gives you 8 walls at a time, and it's the mod's own recipe, unchanged by the pack.[3]

Crafting Shaped

8 × Polished Deepslate

Recipe id: compactmachines:wall

Next come the modules: the Atom Shrinking Module and the Atom Enlarging Module. Both are the mod's default recipes, and you need both for the later steps.[3]

Step 2: the Personal Shrinking Device

The Personal Shrinking Device has a recipe that the pack changed, so don't trust older guides or the mod's defaults. This is the pack's version:[3]

Personal Shrinking DeviceChanged by the pack

Crafting Shaped

Crafting Shaped
Iron Nuggetany glass panesIron Nugget
Atom Enlarging ModuleEnder EyeAtom Shrinking Module
Iron IngotCopper IngotIron Ingot

Recipe id: compactmachines:personal_shrinking_device

Step 3: machine tiers

The pack adds its own recipes for every machine tier, and they all produce New Machine. Tiny, small, normal, large, giant and massive are miniaturization recipes added by the pack. Colossal is different: it's a shaped crafting recipe, also added by the pack, and it's the only tier here that asks for a netherite ingot.[3]

  • Tiny, small, normal, large, giant and massive: miniaturization recipes added by the pack.[3]
  • Colossal: a shaped crafting recipe added by the pack.[3]
  • Farming: a separate miniaturization recipe added by the pack.[3]
New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_tiny

New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_small

New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_normal

New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_large

New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_giant

New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_massive

New MachineAdded by the pack

Miniaturization (compactcrafting)

Recipe id: compactmachines:new_machine_farming

Shortcut for teammates

The pack has a script that can hand you a Personal Shrinking Device for free. When a team's base is created, the script checks the area around the base spawn for Compact Machines blocks. If it finds any, the team gets a Compact Machines starter stage. Any player who later joins that team's party, and isn't the team owner, receives one device, once.[6]

Tip: If you're joining a friend's team, check your inventory after joining. You may already have a Personal Shrinking Device and can skip step 2.[6]

Which Compact Machines config options matter?

3 parts

Same as in the FTB Skies 2 1.23.0 guide

Good news: Compact Machines has only a handful of options, and this pack doesn't change any of the ones with a listed mod default. Here is how it sets the ones you're most likely to care about.[7][8][9]

Command permission levels (server config)

These live in the server config and decide who can run the admin commands for machines and rooms. Each accepts a value from 0 to 4, and the pack sets every one of them to 2, which is also the mod default. The config's own description lists the levels as 0 = ALL, 1 = ADMIN, 2 = OP and 4 = OWNER.[8]

Tip: If you run a server and want regular players to use one of these commands, lower that option's value. Remember that the rebind option only applies after a server restart.[8]

Recipes (common config)

recipes.vanillaRecipes is set to true in this pack. The file describes it as enabling vanilla-style recipes.[7]

Room previews (client config)

enableRoomPreviews is set to true in this pack, so you get a room preview when you open a bound machine's UI. This is a client-side setting, so it only affects your own game.[9]

Sources

  1. FTB Skies 2 1.23.0 mod list · pack file
  2. compactmachines names, screen text and descriptions (English lang file) · official mod data
  3. FTB Skies 2: Aero 1.10.0 recipe dump: recipes making Compact Machines items · pack recipe dump
  4. FTB Skies 2: Aero 1.10.0 config: config/compactmachines-common.toml · pack file
  5. FTB Skies 2: Aero 1.10.0 config: config/compactmachines-server.toml · pack file
  6. kubejs/server_scripts/event_handlers/mods/team_grants.js (FTB Skies 2: Aero's own script) · pack file
  7. FTB Skies 2 1.23.0 config: config/compactmachines-common.toml · pack file
  8. FTB Skies 2 1.23.0 config: config/compactmachines-server.toml · pack file
  9. FTB Skies 2 1.23.0 config: config/compactmachines-client.toml · pack file
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 17, 2026.

Guides for other versions: 1.9.0 to 1.9.1 · 1.7.2 to 1.8.0 · 1.0.3 to 1.7.1

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Version in each release

21 releases, first in 1.0.3
FTB Skies 2: AeroVersionJarWhere it came from
1.13.0
Sep 28, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.12.1
Sep 22, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.12.0
Sep 21, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.10.0
Sep 8, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.9.1
Sep 2, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.9.0
Sep 1, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.8.0
Aug 25, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.7.3
Aug 19, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.7.2
Aug 18, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.7.1
Aug 18, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.6.1
Aug 13, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.6.0
Aug 11, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.5.1
Aug 8, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.4.1
Aug 4, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.4.0
Aug 3, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.3.0
Jul 30, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.2.1
Jul 28, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.2.0
Jul 28, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.1.1
Jul 25, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.1.0
Jul 24, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom the published release
1.0.3
Jul 17, 2026
7.0.81compactmachines-neoforge-7.0.81.jarFrom 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

7 items from the 1.10.0 recipe dump.

Config options (how FTB Skies 2: Aero sets them)

6 settings shipped in the pack's config files; 0 differ from the mod's documented default.

See all 6 settings →

Show settings
SettingFTB Skies 2: Aero valueMod default
enableRoomPreviews
Enable room preview when opening a bound machine UI
config/compactmachines-client.toml
truenot documented
recipes.vanillaRecipes
Enable vanilla-style recipes.
config/compactmachines-common.toml
truenot documented
commands.permLevels.give
Command level required for giving new machines to players.
config/compactmachines-server.toml
22
commands.permLevels.rebind
Specifies requirements for running administrative commands. Requires a server restart to take effect. 0 = ALL, 1 = ADMIN, 2 = OP, 4 = OWNER Command level required for using the rebind and unbind commands.
config/compactmachines-server.toml
22
commands.permLevels.spawn
Command level required for changing room spawn information.
config/compactmachines-server.toml
22
commands.permLevels.upgrades
Command level required for changing room upgrades.
config/compactmachines-server.toml
22

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