In TerraFirmaGreg, transporting items across dimensions or over long distances requires you to build special multiblock structures.
This system is powerful and flexible, offering multiple settings that let you customize logistics to perfectly suit your needs.
What, did you think you could just use AE2 Quantum Tunnels and be done with it?
This is the perfect system to transport all of your passively-produced resources to exactly where they're needed on other planets! And it comes with a powerful configuration system to let you control everything from a single place.
To set it up, you'll need three components:
Interplanetary Railgun
This is the sender that launches items across space.
Interplanetary Receiver
This is the receiver that catches and stores incoming items.
Interplanetary Logistics Monitor
This acts as the central control, where you define the rules and behavior of the entire transport system.
With these machines, you can automate large-scale transfers efficiently — even between planets!
The Interplanetary Railgun acts as your sender multiblock.
It's the structure responsible for launching items toward distant receivers — but it can't receive anything itself.
To function correctly, it requires several components:
Use a Terminal to construct the multiblock easily.
Important: This multiblock can only send items. Make sure your Interplanetary Railgun is always chunkloaded!
Each Railgun requires a special type of ammo — think of it as a package used to transport items. Each launch consumes exactly one unit of ammo and can send three stacks of items.
To load it, you'll need a Railgun Ammo Loader as part of your structure.
You can insert ammo manually or automate the process.
We strongly recommend setting up a passive production line to keep your loader filled continuously — this ensures a smooth and reliable logistics chain.
You can either have each planet automating their own ammo, or you could have one planet make all the ingredients and distribute them to the others.
When opening the Sender logistics screen on the Interplanetary Logistics Monitor, you'll notice the familiar Programmed Circuit from GregTech.
This circuit number is the core identifier for setting up routing rules.
The number you assign will apply a specific rule to all Input Buses in your Railgun structure that are configured with that same circuit number.
This allows you to fine-tune what items are sent where and with which rules, based on the circuit used.
How to configure it:
1. Open the GUI of any Railgun Input Bus
2. Select the number you want, just like in any other GregTech machine.
This lets you create powerful logic like:
With the proper circuit setup, you can automate interplanetary trade like a true industrial tycoon!
Note: You cannot send anything with the
#tfg:cannot_launch_in_railgun tag.
The Interplanetary Logistics Monitor is your logistics command center — the true bread and butter of interplanetary transport.
It's a single block, requires no energy, and will automatically detect every Railgun Sender and Receiver you've built.
It may look simple, but it hides powerful tools under the hood. Let's go over the basics:
When you open the Monitor, you'll see a list of all your Senders and Receivers. You have to name each one.
To create a logistic rule, click the right arrow to select a Sender, then press + to add a new rule. Lastly, choose the destination Receiver from your list.
The Redstone Rule is simple — but incredibly powerful when used well.
In the Sender rules interface, enabling this rule means that a redstone signal must be present on the Input Bus for it to send items.
In the Receiver rules interface, you can configure the rule so that an Output Bus will only accept items based on the redstone signal on that specific block.
Time to use your redstone logic skills!
Whether it's with an AE2 Level Emitter, from Create redstone utilities, or good old vanilla mechanics — this rule lets you synchronize logistics with your factory state like a pro.
The Item Rule works similarly to a GregTech Robot Arm set to Supply Exact.
It can only be configured from the Sender rules interface.
With this rule active, the Railgun will only send the exact quantity when available in the Input Bus.
How to set it up:
The Delay Rule is simple, but useful for managing item flow timing.
On the Sender side:
Items will only be sent after the Input Bus hasn't received any new item for a set amount of time (in seconds).
This helps avoid sending items too frequently when inputs are constantly changing.
On the Receiver side:
The rule defines a delay before an Output Bus can receive another batch of items.
This can be useful to prevent overflow or to pace item insertion into slower systems.
This mode is ideal for syncing with machines that need breathing room between operations, or to prevent unnecessary waste of ammo.
The Interplanetary Receiver, as its name suggests, is designed to receive items sent by the Railgun.
It's a small and simple multiblock that requires no energy or maintenance — just build it and you're ready to go!
Its flexibility lies in the number of Output Buses you can attach. The more you add, the more items it can handle simultaneously.
Setup is easy:
Use a Terminal to construct the multiblock easily.
Just like how your Railgun Input Buses can be assigned a circuit number, you can do the same with the Output Buses on your Receiver.
This feature serves two main purposes:
1. Direct item flow - You can control which Output Bus receives items. To do this, simply assign a circuit number to the Output Bus, then select that number in your Sender's rule via the Logistics Monitor.
2. Conditional rules - You can also set rules to stop sending items if the circuit rule isn't respected.
This is done not from the Sender tab, but by opening the Receiver tab in the Monitor.
For each circuit number, you can assign a rule that applies only to Output Buses using that number.
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