What is the correct Smelter to Ore Excavator ratio in early StarRupture?

For base early-game throughput, one Ore Excavator feeds one Smelter efficiently. Adding extra Smelters before more extraction usually creates idle machines and wasted power.

How much power headroom should I keep when expanding a factory?

Keep meaningful spare generation capacity and check the machine database before adding a new block of production. If your grid is already near saturation, add power first so new machines do not throttle the whole line.

Which corporation priority prevents mid-game crafting lockups?

Rush Selenian Corporation Level 2 first to unlock the Fabricator. Skipping this often causes progression stalls because many required components depend on Fabricator recipes.

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5 Common StarRupture Factory Mistakes (and How to Fix Them)

7 min read

March 3, 2026

Split comparison showing a chaotic poorly planned StarRupture factory versus an efficient organized factory layout

StarRupture's factory system is more complex than it first appears. This article is written against the current live planner baseline, not PTB research, and the fixes below are designed to send you back to a calculator or machine database check before you commit to a rebuild. These 5 mistakes account for a huge share of the "why isn't my factory working?" posts you see in the community.

Building Before Calculating Machine Counts

Symptom: "You've placed 4 Smelters, but only 2 are running at any given time. The other 2 are idle, waiting for ore."

StarRupture machines have fixed production rates. If you don't match excavator output to smelter input, some machines always idle. The rule: 1 Ore Excavator outputs 60 IPM → feeds exactly 1 Smelter (which also processes 60 IPM). Add a second excavator before adding a second smelter.

✓ Fix: Use the Production Calculator before placing a single machine. Input your target item and IPM, and it will tell you exactly how many of each machine you need down to raw ore.

Open Production Calculator

Underestimating Power Requirements

Symptom: "Your factory runs fine with 3 machines, then suddenly slows down when you add a Fabricator."

Power ramps faster than it looks, and old forum numbers are one of the easiest ways to misread a save. The useful lesson is not memorizing stale wattage values. It is recognizing that one more production machine can erase your margin if the grid is already close to full.

✓ Fix: Before adding any machine bank, cross-check our Machine Database for the current live planner values. Keep visible power headroom, and if the grid already feels tight, add generation before expanding production.

View Machine Database

Skipping Rail Lines and Hand-Carrying Items

Symptom: "You're manually moving ore from the excavator to the smelter because building a Rail seems like extra work."

Rail lines feel optional early game — you can jog ore over yourself. But this approach collapses immediately when you add a second machine. Rails are the circulatory system of your factory. Without them, every machine is an island.

✓ Fix: Build Rail V1 between every connected machine from Day 1, even when you only have 2 machines. The habit of rail-first design prevents the painful factory rebuild that most players go through at Hour 3.

Read Factory Layout Guide

Ignoring the Wolfram Bottleneck

Symptom: "Your chemical production line runs at 40% capacity even though you have plenty of Wolfram ore."

Powder and chemistry lines usually fail at the intermediate step, not the final recipe. In the current community baseline, Crusher throughput is a common bottleneck for Wolfram-heavy lines, so a factory can look ore-rich while still starving the machines that actually need powder.

✓ Fix: For any line that depends on Wolfram Powder, cross-check the calculator before scaling. If your plan is close to the current baseline limit, treat Crusher capacity as the thing to verify first instead of assuming ore volume is the only problem.

Check Your Chain Bottlenecks

Leveling the Wrong Corporation First

Symptom: "You've put 8 hours into Moon Energy and Griffith Blue, but your production chain is still stuck because you can't craft the required intermediate components."

The Fabricator machine — required for Electronics, Rotors, Stabilizers, and nearly every mid-game recipe — is locked behind Selenian Corporation Level 2. Players who skip Selenian early find themselves unable to fulfill most corporation delivery bundles because the required items literally cannot be crafted yet.

✓ Fix: Selenian Level 2 is your #1 unlock priority. Everything else comes after. See our Corporation Calculator for the exact delivery requirements for each level and plan which to target first.

View Corporation Calculator

The One Rule That Prevents All 5 Mistakes

Calculate and cross-check before you build. Every mistake above stems from building intuitively instead of checking machine counts, power needs, and unlock dependencies in advance. The Production Calculator and Machine Database were built to give you those live checks before you place a single machine in-game.

Last Updated

April 6, 2026

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Beginner

StarRupture Beginner Guide: Survive Your First Hour on the Moon

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Intermediate

Understanding Production Chains: From Ore to Final Product