Lei Cheung

EDFM // Engineering / Engineers

A Grade 5 Shield Generator, Sensors, and Detailed Surface Scanner Engineer based at Trader's Rest in Laksak, reached through The Dweller.

Lei Cheung

ENGINEER

Engineer type

Ship Engineer

System

Laksak

Body

Laksak A 1

Facility

Trader's Rest

Specialties

Shield Generator, Detailed Surface Scanner, Sensors, Shield Booster

Maximum grade

Grade 5

ACCESS

Prerequisite

The Dweller — Grade 3 access plus at least one-third progress toward Grade 4

Discovery

Referral from The Dweller

Invitation

Trade at 50 unique commodity markets

Unlock

Deliver 200 Gold

Lei Cheung is a ship Engineer based at Trader's Rest in the Laksak system. He is reached through The Dweller and is best known for providing Grade 5 Shield Generator Engineering. He also provides Grade 5 Engineering for Sensors and Detailed Surface Scanners, along with Grade 3 Shield Booster Engineering.

Lei is therefore useful beyond shields alone. His Grade 5 Sensors and Detailed Surface Scanner access also makes him a maximum-grade Engineer for several exploration and utility-focused builds.

Field note

Receiving The Dweller's referral does not automatically unlock Lei. You must also satisfy his trading requirement and provide 200 units of Gold before his workshop becomes available.

Location

• System: Laksak
• Facility: Trader's Rest
• Body: Laksak A 1
• Engineer type: Ship Engineer
• Referral required: The Dweller
• System permit required: No

Trader's Rest is a surface Engineer base located on Laksak A 1.

How to Discover Lei Cheung

Lei Cheung is discovered through The Dweller.

Reach Grade 3 access and progress at least one-third of the way toward Grade 4 with The Dweller to receive his referral to Lei.

Field note

Receiving The Dweller's referral makes Lei known to you. His separate market-trading requirement must still be completed before he can be unlocked.

How to Receive an Invitation

Trade at at least 50 unique commodity markets.

The requirement tracks the number of different markets with which your Commander has traded. Repeated trading at the same market does not increase the number of unique markets used.

A reliable way to progress the requirement is to make at least one commodity sale at each new market you visit.

Tip

If you know you intend to unlock Lei later, begin building this requirement naturally while working on other activities. When visiting a new station with a commodity market, carrying and selling a small amount of ordinary cargo can gradually build your market count without requiring a dedicated 50-stop trip later.

See Trading at 50 Markets for Lei Cheung for a dedicated walkthrough, including how to track your progress and an efficient method for completing the requirement.

Important

The 50-market requirement and the 200 Gold donation are separate. Trading at enough markets allows you to meet Lei; the Gold is then required to unlock his workshop.

How to Unlock Lei Cheung

Unlock requirements summary:

• Reach Grade 3 access and at least one-third progress toward Grade 4 with The Dweller.
• Obtain a total of 200 units of Gold.
• Donate the 200 units of Gold to Lei Cheung.

Important

Gold is an ordinary commodity. It is not a Raw, Manufactured, or Encoded Engineering material. Each unit occupies one tonne of cargo space.

Tip

A ship capable of carrying 200 tonnes can complete the Gold donation in one trip, but using a smaller ship only means making additional deliveries.

For the complete step-by-step process, see Unlocking Lei Cheung.

Increasing Engineer Reputation

Reputation with Lei Cheung can be increased by:

• crafting Engineering modifications at Trader's Rest; or
• selling commodities at Trader's Rest.

Higher Engineer reputation gives access to the higher grades Lei supports for each blueprint.

Reaching Grade 3 access and progressing at least one-third of the way toward Grade 4 also allows Lei to provide the referral to Ram Tah.

See Engineer Reputation for how ship Engineer reputation, grade access, blueprint progression, referrals, and alternative reputation methods work.

Tip

If you still have ordinary commodities aboard after completing Lei's Gold donation, selling appropriate cargo through the commodity market at Trader's Rest can help increase your Engineer reputation without relying entirely on Engineering rolls.

Engineer Unlock Chain

Lei Cheung belongs to The Dweller branch of the ship Engineer network.

The route to Lei is:

The Dweller
└── Lei Cheung

After reaching Grade 3 access and progressing at least one-third of the way toward Grade 4 with Lei, he provides the referral to:

• Ram Tah

The complete branch is:

The Dweller
├── Lei Cheung
│   └── Ram Tah
└── Marsha Hicks [Colonia]

Current Engineer data independently lists Ram Tah as being discovered through Lei Cheung.

Field note

A referral from Lei does not automatically unlock Ram Tah. Ram Tah has his own meeting and unlock requirements that must still be completed.

See Engineer Unlock Guide for the complete referral network.

Available Engineering

Lei's Engineering coverage is shown below. The listed grade is the highest grade he can apply to that module.

Module	Available blueprints	Maximum grade
Shield Generator	Enhanced Low Power Kinetic Resistant Reinforced Thermal Resistant	Grade 5
Detailed Surface Scanner	Expanded Probe Scanning Radius Long Range Detailed (Live only; compatible Merc modules)	Grade 5
Sensors	Lightweight Long Range Wide Angle	Grade 5
Shield Booster	Blast Resistant Heavy Duty Kinetic Resistant Resistance Augmented Thermal Resistant	Grade 3

Lei therefore provides maximum-grade Engineering for three of his four module types. Only his Shield Booster capability stops below Grade 5.

Detailed Surface Scanner Engineering

Lei provides both current Detailed Surface Scanner blueprints through Grade 5:

• Expanded Probe Scanning Radius
• Long Range Detailed

Long Range Detailed

Long Range Detailed increases probe radius in exchange for increased module mass and power draw.

Lei can apply the blueprint through Grade 5.

Important

Live only: Long Range Detailed was introduced with the Operations-era Engineering additions and is not available in Legacy. It can only be applied to compatible Merc modules.

Experimental Effects

Experimental Effects are separate from the main Engineering blueprint. A compatible module can normally have one Experimental Effect in addition to its blueprint modification.

Of Lei's specialties, Shield Generators and Shield Boosters support Experimental Effects. Sensors and Detailed Surface Scanners do not currently have Experimental Effects available.

Shield Generator

Available Shield Generator Experimental Effects include:

• Double Braced
• Fast Charge
• Force Block
• Hi-Cap
• Lo-Draw
• Multi-Weave
• Stripped Down
• Thermo Block

Shield Booster

Available Shield Booster Experimental Effects include:

• Blast Block
• Double Braced
• Flow Control
• Force Block
• Super Capacitors
• Thermo Block

See Experimental Effects for the effects, tradeoffs, and material costs of each option.

Field note

Experimental Effects cannot be applied through ordinary Remote Engineering. The module must be taken to an Engineer who works on that module.

Recommended Engineering

Lei's most important capability for many ship builds is his Grade 5 Shield Generator Engineering.

Unlike several module types where one blueprint dominates general-purpose use, Shield Generator Engineering depends heavily on the type of shield fitted and the purpose of the ship.

Thermal Resistant

Thermal Resistant increases thermal resistance while reducing kinetic resistance and slightly reducing overall shield strength.

It is particularly useful when building shields around balanced resistances, including many Bi-Weave configurations.

Reinforced

Reinforced increases overall shield strength and shield-generator integrity at the cost of additional power draw and mass.

It is useful when raw shield capacity is more important than minimizing mass or balancing resistances.

Tip

There is no universal Shield Generator blueprint.

A resistance-focused Bi-Weave build may favor Thermal Resistant, while a build intended to maximize raw shield strength may favor Reinforced.

Choose the blueprint based on the shield type and the rest of the ship's Shield Booster configuration rather than treating one option as correct for every ship.

Sensors

Lei also provides Lightweight Sensors through Grade 5.

Reducing Sensor mass can be valuable on exploration and other mass-sensitive ships, while Long Range or Wide Angle can be preferable when scanner performance is the priority.

Blueprint Pinning

After earning sufficient reputation with Lei, one of his blueprints can be pinned for use through Remote Engineering.

Tip

EDFM recommendation: Thermal Resistant Shield Generator is a useful default blueprint to consider pinning at Lei if you regularly use balanced-resistance or Bi-Weave shield builds.

Lei provides the blueprint through Grade 5, making the entire progression available through Remote Engineering once the blueprint has been pinned.

If your fleet relies more heavily on raw shield strength, Reinforced Shield Generator may be the more useful pin instead.

The best pin depends on the shield configurations you use most often. Lei also provides Grade 5 Sensors and Detailed Surface Scanner Engineering, so those remain viable alternatives if your Shield Generator blueprints are already pinned elsewhere.

Important

A pinned blueprint does not allow you to apply Experimental Effects remotely. Experimental Effects still require visiting an appropriate Engineer workshop.

What Lei Cannot Fully Engineer

Lei provides Grade 5 Engineering for most of his specialties.

His maximum grades are:

• Shield Generator: Grade 5
• Detailed Surface Scanner: Grade 5
• Sensors: Grade 5
• Shield Booster: Grade 3

For maximum-grade Shield Booster Engineering:

• Didi Vatermann provides Grade 5 Shield Booster Engineering.
• Mel Brandon provides Grade 5 Shield Booster Engineering in Colonia.

Lei is therefore a maximum-grade Engineer for Shield Generators, Sensors, and Detailed Surface Scanners, but Commanders seeking fully engineered Shield Boosters will eventually need another Engineer.

What Next?

Progressing Lei's reputation opens the route to Ram Tah.

Continue Engineering

• Continue Lei's referral branch: Ram Tah
• Grade 5 Shield Boosters: Didi Vatermann
• Another Grade 5 Shield Generator Engineer: Mel Brandon
• Previous Engineer: The Dweller
• Complete the market requirement: Trading at 50 Markets for Lei Cheung
• See the whole network: Engineer Unlock Guide
• Learn about Engineer reputation: Engineer Reputation
• Learn the system: Engineering

Sources

Engineering Navigation

Engineering Engineering Blueprints Experimental Effects Engineers Engineering Materials Engineer Unlock Guide