Commands and config

Every number on these pages is a config value, and all of them can be read and set in game. The commands live on Expanded Library's shared /exmod root, and the mod id is the section name, so this mod is ppex.

Commands

command	what it does
.exmod network hi	tints every networked block, one translucent colour per network, and keeps up as you build
.exmod network unhi	turns the highlight off
.exmod measure	reports your display units
.exmod measure metric	litres, atm and degrees Celsius
.exmod measure imperial	gallons, psi and degrees Fahrenheit
/exmod config	lists every mod that has manageable config
/exmod config ppex	lists this mod's values and their current settings
/exmod config ppex <key>	prints one value
/exmod config ppex <key> <value>	sets one value, applied at once and written to disk
/exmod recipes ppex	reports the recipe cost level
/exmod recipes ppex cheap	sets it, applied on the next world reload

The two .exmod commands are client-side and affect only what you see: the unit switch converts the look-at lines and the game's own handbook, and changes nothing in the simulation. The /exmod commands are server-side and need the controlserver privilege.

The files

ModConfig/ppex_values.json holds the values below, and /exmod config is the same file edited live. ModConfig/ppex_recipes.json holds the per-recipe ingredient counts for each cost level; it is edited on disk, not through a command, and /exmod recipes only chooses which level of it is active. An older ppex.json is migrated once to ppex_values.json.

A value that comes back from the file as not-a-number, infinite or negative is reset to its default when the world loads, and a few keys are clamped to a range.

Some releases push a new default out over your saved tuning. When a world crosses one of those versions only the named keys are reset and the rest of your file is untouched: 0.6.0 and 0.6.7 reset the engine pump rate, 0.6.5 and 0.6.6 the shaft load an engine holds, and 0.6.6 also the salvage a machine returns when it is mined intact. That last one is why setting RccBrokenDropsRatio looked like it did nothing in mid-2026: the release had already raised it to 1.0, and mining a machine intact now returns everything it was built from.

The values

Pipes

key	default	what it sets
LitresPerPipe	30 L	capacity one pipe adds to its run at 1 atm
IronPipeBurstPressure	5 atm	burst rating of an iron pipe
SteelPipeBurstPressure	10 atm	burst rating of a steel pipe
PipeOverpressureSeconds	30 s	time at the burst rating before a pipe lets go
GasLeakRate	8 L/s	gas an open end bleeds from the whole run
LiquidLeakRate	10 L/s	water an open end drains from the whole run
ChimneyGasDrawRate	16 L/s	gas one chimney draws off a passthrough or outlet
EvaporationLitresPerDay	50 L	water lost per in-game day from a run and from a boiler
BoilingPoint	100 C	where water becomes steam and steam becomes water
SteamExpansionFactor	16	litres of steam per litre of water, both ways
SteamSaturationExponent	0.25	exponent of the steam temperature curve

Boilers (the plain names are the Lancashire)

key	default	what it sets
BoilerCapacity	1200 L	vessel capacity, water and steam together
BoilerMinBoilWater	200 L	water needed before it heats
BoilerMaxBoilWater	800 L	most water it holds
BoilerSteamPerSecond	48 L/s	steam while boiling
BoilerMaxOutputPressure	12 atm	choke pressure, and the explosion threshold
BoilerExplosionRadius	4 blocks	blast radius
CornishBoilerCapacity	800 L	the Cornish vessel
CornishBoilerMinBoilWater	150 L	the Cornish floor
CornishBoilerMaxBoilWater	500 L	the Cornish ceiling
CornishBoilerSteamPerSecond	32 L/s	the Cornish output
CornishBoilerMaxOutputPressure	5 atm	the Cornish choke
CornishBoilerExplosionRadius	3 blocks	the Cornish blast
BoilerHeatUpSeconds	180 s	lighting to first steam
BoilerOverpressureSeconds	30 s	at the choke pressure before it explodes
BoilerShutdownDelaySeconds	10 s	grace after the fire dies
BoilerChokeExtinguishSeconds	10 s	choked before the fuel pile is snuffed
BoilerShutdownCondenseRate	200 L/s	steam condensing back to water after shutdown
BoilerExhaustPerSecond	16 L/s	exhaust a burning boiler makes
ExhaustMaxOutputPressure	0.8 atm	back pressure at which the fire is choked
BoilerLidVentRate	200 L/s	steam an open lid dumps
BoilerSteamLeakRate	16 L/s	steam an unpiped outlet bleeds
BoilerWaterIntakeFillFraction	0.5	share of capacity the automatic intake fills to
BoilerWaterIntakeRate	10 L/s	automatic intake draw
WaterPressureSteamBoost	1	extra litres of steam per litre admitted per atm over 1 atm
BoilerBlastResistanceThreshold	20	blocks under this resistance are shattered by a burst
BoilerExplosionDropRatio	0.4	share of build materials salvaged from a burst
RccBrokenDropsRatio	1.0	share returned when a machine is mined intact
BoilerWaterSurfaceLowLevel	0.2	rendered water height below the operating level
BoilerWaterSurfaceHighLevel	0.99	rendered water height once operating

Engines and sub-machines

key	default	what it sets
WattEngineEngagePressure	2 atm	where the Watt starts
WattEngineBreakPressure	4 atm	where the Watt starts wearing
WattEngineSteamRate	30 L/s	Watt steam draw
WattEngineMaxPower	0.3	Watt power
WattEngineWaterRate	1 L/s	Watt condensate
CornishEngineEngagePressureLow	5 atm	Cornish engage, low
CornishEngineEngagePressureNormal	6 atm	Cornish engage, normal
CornishEngineEngagePressureHigh	7 atm	Cornish engage, high
CornishEngineBreakPressureLow	8 atm	Cornish wear point, low
CornishEngineBreakPressureNormal	8 atm	Cornish wear point, normal
CornishEngineBreakPressureHigh	8 atm	Cornish wear point, high
CornishEngineSteamLow	8 L/s	Cornish steam draw, low
CornishEngineSteamNormal	16 L/s	Cornish steam draw, normal
CornishEngineSteamHigh	32 L/s	Cornish steam draw, high
CornishEnginePowerLow	0.2	Cornish power, low
CornishEnginePowerNormal	0.4	Cornish power, normal
CornishEnginePowerHigh	0.8	Cornish power, high
CornishEngineWaterLow	0.3 L/s	Cornish condensate, low
CornishEngineWaterNormal	0.6 L/s	Cornish condensate, normal
CornishEngineWaterHigh	1.2 L/s	Cornish condensate, high
CornishEngineMaxPower	1.0	the Cornish nominal figure the readout quotes
CornishEngineOverclockVolume	1.8	sound volume scale on high
CornishEngineOverclockPitch	0.8	gear hum pitch scale on high
EngineOverPressureSeconds	60 s	above the band before an engine bursts
SteamEngineEfficiency	0.75	share of inlet pressure a sub-machine delivers at
MpRatedSpeed	1.0	shaft speed a generator holds at its rated load
MpLoadPerEnginePower	2.0	shaft load an engine holds per unit of power
PumpWaterPerSecond	100 L/s	engine pump rate per unit of engine power
ManualPumpWaterPerSecond	2 L/s	hand crank rate
ManualPumpDeliveryPressure	1 atm	hand crank head
MpPumpLitresPerSpeed	20 L/s	mechanical pump rate per unit of axle speed
MpPumpDeliveryPressure	1.5 atm	mechanical pump head
MpPumpBaseLoad	0.05	shaft load of the beam itself
MpPumpLoadPerAtm	0.05	extra shaft load per atm of head
FluidIntakeWaterDepth	3 blocks	side of the water cube an intake needs below it
FluidIntakeExclusionRange	6 blocks	spacing between intakes
CondenserSteamPerSecond	30 L/s	steam a condenser pulls
CondenserWaterThroughput	50 L/s	water a condenser passes

Recipes

key	default	what it sets
RecipeLevel	normal	recipe cost level, normal or cheap

What goes wrong

The command is not found. /exmod config and /exmod recipes need server privileges; on a server you are not an admin on, they are not yours to run. .exmod network and .exmod measure start with a dot, not a slash, because they run on your own client.

A recipe level change did nothing. It applies on the next world reload, not at once.

A value reverted after an update. See the migration list above. Anything not on it keeps what you set.