Train model making factory

Detailed explanation of the entire process of making train models

1、 Preparation of materials and tools

Basic materials

Vehicle body construction: ABS sheet (for shell), zinc alloy (die-casting parts), 0.5mm stainless steel wire (transmission link)

Track system: brass track, birch board (roadbed), insulation paint (electrical isolation)

Decorative accessories: Etching film (smoke pipe details), copper wire (cable), miniature LED (signal light)

Core Tools

Cutting tools: laser engraving machine (precise cutting of sheet metal), art knife (manual trimming)

Adhesive tools: quick drying adhesive (ABS adhesive), hot melt adhesive (fixing large parts)

Painting tools: spray pen (uniform coloring), stain solution (aging treatment)

2、 Step by step production process

1. Vehicle body production

Steam locomotive:

Boiler section: After zinc alloy die-casting, paste 382 smoke pipes with etching plates to ensure neat arrangement.

Transmission system: Stainless steel wire bent connecting rod, connecting piston and wheel, testing the smoothness of motion.

EMU:

Shell forming: After ABS vacuum forming, embedded aluminum alloy skeleton enhances strength.

Bogie: Nylon gearbox with integrated magnetic coupling for easy disassembly and maintenance.

2. Track and scene construction

Track laying:

CNC carved birch wood board roadbed, pre embedded brass tracks and electrified treatment, with sleepers arranged at a distance of 16.5mm.

The turnout adopts 3D printed components and micro servo motors to control the steering, with a response time of ≤ 0.8 seconds.

Platform production:

Laser cutting station building with oak plywood, acrylic hot bending arch windows, and analog signal lights with PLC programming added.

3. Dynamic system integration

DCC control: The dual channel controller drives the motor and is programmed to match the characteristics of the steam engine (acceleration 0.3m/s ²) and high-speed rail (1.2m/s ²).

Sensor interaction: Track RFID triggers voice broadcast, infrared sensor controls door opening and closing.

3、 Detail processing skills

Painting process

Steam Age: Matte black base, enamel paint stains wash rust, dry sweep highlights metal wear.

Modern trains: Pearl white electrostatic spraying, UV printed LCD screen film.

Aging effect

Track wear: Apply a 2B pencil horizontally to the contact surface to simulate wheel friction marks.

Rust treatment: Mix brown, orange, and black pigments to apply dots to the joints, and gently wipe with a dry cloth to highlight the natural peeling sensation.

Dynamic debugging

Test the smoothness of the track (straight track undulation ≤ 0.1mm/m) to ensure that the coupler is automatically coupled without any jamming.

4、 Common problem solutions

Derailment issue: Check the track parallelism error (<1mm), adjust the wheelbase of the bogie to match the track gauge.

Circuit short circuit: Insulate the track gap with paint to prevent current from flowing.

Component detachment: Key connections are reinforced with quick drying adhesive, and magnetic suction design facilitates replacement.

Tags: vehicle model, sand table models, industrial models