What is SU in the Create mod?

SU stands for Stress Units. It is the measurement of kinetic capacity in a mechanical network. Generators (like Water Wheels) produce SU, while consumers (like Mechanical Presses) consume SU.

Why did my Create machines stop moving?

Your network is Overstressed. This happens when the total Stress Impact of your active machines exceeds the total Stress Capacity provided by your generators. To fix it, you must add more generators or lower the RPM of your machines.

How does RPM affect Stress?

RPM (Rotations Per Minute) directly multiplies a machine's Stress Impact. If a Mechanical Press has a base impact of 8 SU at 1 RPM, running it at 32 RPM will consume 256 SU. Faster machines finish recipes quicker but require massively more kinetic power.

Minecraft Create Mod Calculator | Stress (SU) & RPM Optimizer

Power Generators (Capacity)

Water Wheels (256 SU) 0

Large Water Wheels (512 SU) 1

Max Windmills (8,192 SU) 0

Lvl 9 Steam Engines (16,384 SU) 0

Kinetic Consumers (Impact)

Mech. Press 1

Mech. Mixer 0

Crush. Wheel 0

Drill / Saw 0

Network Speed

Target Rotational Speed (RPM) 16

Higher RPM finishes recipes faster but multiplies Stress Impact.

Stress Analytics

Total Capacity

0su

Total Impact

0su

Remaining Capacity
0su

Network Status
Operational

Kinetic Stress Gauge

Total Capacity

Current Impact

Mastering the Create Mod: Stress vs. Speed

In the Minecraft Create Mod, machines do not use RF or Forge Energy. Instead, they rely on purely mechanical Kinetic Energy. Building a successful factory requires balancing your Rotational Speed (RPM) against your Stress Capacity (SU).

What is Stress Capacity (SU)?

Generators like Water Wheels, Windmills, and Steam Engines generate Stress Capacity. This is the "budget" your network has to operate. A basic Water Wheel generates exactly 256 SU. A fully upgraded Level 9 Steam Engine generates a massive 16,384 SU.

The Impact Formula:
Machine Stress Impact = (Base Machine Cost) × (Current RPM)
Example: A Mechanical Press has a base cost of 8. If you run it at 32 RPM, it consumes exactly 256 SU (8 * 32). This perfectly consumes the output of a single standard Water Wheel.

The Overstress Mechanic

If you connect too many machines, or if you use gear ratios to drastically speed up your network (e.g., from 16 RPM to 128 RPM), your Total Impact will exceed your Total Capacity. When this happens, the network becomes Overstressed. All gears will immediately stop turning, and no machines will function until you either add more generators or lower the RPM of the network using gearboxes or sequence gearshifts.

Why does my Mechanical Mixer say "Speed Requirement Not Met"?

Some machines require a minimum RPM to function, regardless of your SU capacity. The Mechanical Mixer requires a minimum of 30 RPM to begin mixing recipes. If your network is spinning at 16 RPM, you must use Large Cogwheels to gear up the speed before it connects to the mixer.

Do shafts and cogwheels consume Stress?

No. Basic kinetic components like Shafts, Cogwheels, Belts, and Gearboxes do not consume any Stress Units. They only transfer power and alter RPM. Only active functional machines (Presses, Drills, Fans, etc.) consume your SU budget.

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