Source-checkedTechnology & automation

Flex Splines - Longer Belts

by Andre Aquila · for Satisfactory

Allows you to build longer VANILLA Conveyors, Pipes, Tracks, Powerlines and Hypertubes. And more flexible modded builds.

237KDownloads
4 mo agoLast updated
>=491125Latest game version
ficsit.appSource

About Flex Splines - Longer Belts

From ficsit.app

Allows you to build longer VANILLA Conveyors, Pipes, Tracks, Powerlines and Hypertubes. And more flexible modded builds.


<style> .multiplayer-banner { background-color: #4caf50; border-top: 4px solid #000; border-bottom: 4px solid #000; margin: 20px 0; padding: 10px 0; display: flex; align-items: center; justify-content: center; gap: 15px; width: 100%; } .multiplayer-text { color: #ffffff !important; font-weight: bold; text-transform: uppercase; letter-spacing: 2px; font-size: 1.1rem; text-shadow: 2px 2px 0px #000; } .multiplayer-sub { background: #000; color: #4caf50 !important; padding: 2px 10px; font-size: 0.8rem; font-weight: bold; text-transform: uppercase; border: 2px solid #fff; } .thumb-icon { font-size: 1.5rem; filter: drop-shadow(2px 2px 0px #000); } </style>
👍
Multiplayer Compatible
Everyone!
<!-- //------------------------------------------------------------ END MULTIPLAYER YES --->

<style> .mod-container { --sf-gold: #fa9549; --sf-flex: #4fd1c5; --sf-bg: #2d2d2d; --sf-border: #000; max-width: 850px; margin: 20px auto; background-color: var(--sf-bg); color: #e0e0e0; padding: 30px; border: 4px solid var(--sf-border); box-shadow: 10px 10px 0px var(--sf-border); } .mod-container h1 { color: var(--sf-gold); text-transform: uppercase; text-align: center; border-bottom: 3px double var(--sf-gold); padding-bottom: 10px; margin-bottom: 25px; } .mod-container .feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin: 20px 0; } .mod-container .feature-card { background: #1a1a1a; border-left: 4px solid var(--sf-flex); padding: 12px; font-size: 0.85rem; } .mod-container .warning-box { background: #742a2a; border: 2px solid #000; padding: 15px; margin: 20px 0; font-size: 0.85rem; } .mod-container .info-box { background: #252525; border: 1px solid #444; padding: 15px; margin: 20px 0; font-size: 0.85rem; } .mod-container .gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 20px; } .mod-container img { width: 100%; border: 4px solid #000; display: block; } .fix-section { background: #1a1a1a; border: 2px dashed var(--sf-gold); padding: 20px; margin-top: 30px; text-align: center; } </style>

Flex Splines

Break the boundaries of vanilla construction! Build longer, tighter, and more complex logistics networks that snake through your factory with total freedom. This mod adds lenght to vanilla buildings and adds new flex buildings that can be in strange forms.

Extended Reach
Longer conveyors, pipes, tracks, hypertubes and powerlines.
Custom Splines
Unlock unique building shapes via Hub milestones.
Tight Spaces
Curvature freedom for compact, high-density layouts.
Unlimited Flow
Defy standard gravity and placement restrictions.
⚠️ Build with Care Pushing splines to extreme lengths or curves can cause visual glitches or unexpected behavior due to game engine limitations. Use flex buildings when vanilla options won't suffice!

💡 Bright Hologram Solution

If your belt holograms are too bright, adjust the luminance of the secondary color in your settings:

(Thanks to Sevetamryn for the fix!)

Credits: Icons, UI, and Graphic advice from Deantendo: The UI guy!

Honest note: Your factory doesn't have to be a box. With Flex Splines, it can be a work of art!

Read the full description on ficsit.app →

Highlights

From source data

Game versions

Built for Satisfactory >=491125.

Footprint

Rated a light load on a server.

Dependencies

Needs 2 other projects installed alongside it.

Flex Splines - Longer Belts on Nxeon

From our catalogue
One-click install
Supported on Nxeon Satisfactory servers. We download it from ficsit.app, place it, and restart the server.
Server side
Required on the server
Server load
light
Smallest plan we suggest
Satisfactory — 8 GB (8 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.0.31, released 2026-06-21

Recent builds

BuildReleasedGame versionsLoaders
1.0.312026-06-21>=491125n/a
1.0.15 alpha2023-11-26>=264901n/a

Run Flex Splines - Longer Belts on a Satisfactory server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on ficsit.app as “Mods”

Technology & automation

Machines, power, logistics and automation.

Runs on your server

From source side support

ficsit.app lists Flex Splines - Longer Belts as required on the server. Check its ficsit.app page to see whether players need it too.

Compatibility

Game
Satisfactory
Runs on
Serverrequired on the server
Game versions
>=491125
Requires
2 other projects installed alongside it.

Verified at the source

  • ✓ficsit.appOfficial listing, checked 2026-10-15Open ↗
  • ✓AuthorAndre Aquila, as published on ficsit.app
  • ✓LicenseNot published by the sourceFree

Flex Splines - Longer Belts, answered

Generated from the mod’s own source data.

Do my players need to install Flex Splines - Longer Belts?

ficsit.app lists Flex Splines - Longer Belts as required on the server. Check its ficsit.app page to see whether players need it too.

Is it free?

Yes. Flex Splines - Longer Belts is free to download from ficsit.app.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Flex Splines - Longer Belts on a Satisfactory server.

Deploy in about a minute from $12.00 a month, then add Flex Splines - Longer Belts in one click.