ST Engineering Land Systems Accelerates Underwater Submarine Equipment R&D with CreatBot D1000 Pro HS
Release date: 2025-05-08
Estimated reading time 6 minutes
About the Client
ST Engineering Land Systems Ltd is a core business segment of Singapore Technologies Engineering, with over 50 years of technical expertise in global defense and special engineering fields. In addition to its well-known land systems business, the company also possesses deep capabilities in maritime and deep-sea equipment, focusing on the R&D, manufacturing, and full lifecycle technical support of underwater submarine systems, marine unmanned platforms, and deep-sea exploration equipment.
As an important underwater defense equipment supplier in the Asia-Pacific region, ST Engineering Land Systems always adheres to the most stringent marine military manufacturing standards. All products must meet high pressure resistance, corrosion resistance, high sealing, and high precision requirements, ensuring reliable operation in extreme deep-sea environments.
Project Background and Challenges
During the R&D process of new-generation underwater submarine equipment, ST Engineering Land Systems encountered efficiency bottlenecks that traditional manufacturing processes could not solve.
As an ultra-long complex piece of equipment, submarines inevitably adopt a segmented modular design in their R&D, making integrated manufacturing impossible. Traditional CNC machining and mold casting processes have obvious shortcomings when producing large segmented prototypes:
A 1-meter class hull section or internal frame prototype takes 3-4 weeks to complete using traditional processes. Once design changes are needed, reprogramming or remolding is required, resulting in high costs and long cycles.
Submarine components mostly use high-strength corrosion-resistant composite materials such as PA-CF and PET-CF. Ordinary 3D printers lack a constant temperature environment, making large parts prone to warping, cracking, and interlayer delamination.
Complex sealed cavity and pipeline integration structures require traditional processes to be split into multiple small parts for processing and then assembled, not only increasing workload but also easily creating fit gaps that affect underwater sealing performance.
Multi-version scheme comparison and verification efficiency is low, seriously slowing down the entire R&D project progress.
To solve these problems, ST Engineering Land Systems began searching for industrial-grade 3D printing solutions that could meet their stringent requirements.
Figure 1: Equipment printing the submarine bow conical flow guide structure, complex curved surface formed in one piece without secondary processing
Solution: CreatBot D1000 Pro HS Large Industrial 3D Printer
After multiple rounds of rigorous technical testing and actual working condition verification, ST Engineering Land Systems finally selected the CreatBot D1000 Pro HS large high-speed industrial 3D printer, deployed at its R&D center in Singapore headquarters.
The core features of this equipment highly match customer needs:
Ultra-large Build Volume: 1050×1050×1050mm, perfectly suited for printing single hull sections, shell modules, and large internal frames of submarines, meeting the needs of segmented modular R&D.
Fully Enclosed Constant Temperature Chamber Design: Capable of stably controlling the molding environment temperature, perfectly compatible with high-strength composite materials commonly used in marine engineering such as ASA, PA-CF, and PET-CF, effectively solving the warping and deformation problems of large-sized parts.
Industrial-grade High-precision Motion Control System: Ensures dimensional tolerance of large segmented parts remains stable within ±0.1mm, providing reliable assurance for precise assembly of multi-section modules.
Stable Long-cycle Printing Capability: Capable of supporting continuous printing tasks for dozens of hours, with pure printing time for single hull section prototypes controllable within 2-3 days.
Intelligent Filament Run-out Detection and Auto-resume Printing: Reduces manual monitoring requirements and improves equipment utilization efficiency.
Currently, this equipment is mainly used for rapid prototyping of segmented hull components, supporting structure prototypes, sealed cavity verification parts, and R&D-specific tooling fixtures for underwater submarines.
Figure 2: CreatBot D1000 Pro HS printing the submarine mid-section standard hull structure
Actual Application Results
Since the deployment of CreatBot D1000 Pro HS, ST Engineering Land Systems has achieved significant improvements in submarine equipment R&D:
Significant Improvement in Single Section Prototype Production Efficiency
The pure printing time for single hull section prototypes remains stable at 2-3 days. With simple post-processing and dimensional verification, the overall delivery cycle is about 25-30 days, a reduction of over 70% compared to the 3-4 weeks of traditional processes. The R&D team can output multiple design schemes for comparison verification and physical assembly testing in a shorter time, greatly accelerating the iteration speed.
Significant Reduction in Complete Prototype Total Cycle
For a complete submarine prototype composed of 7-8 sections, through reasonable printing sequence arrangement and parallel post-processing, the total production cycle has been shortened from 9 months using traditional processes to 2-3 months. This allows the R&D team to conduct complete prototype assembly testing and underwater simulation trials earlier, discovering and solving design problems in advance.
Figure 3: All 7-8 submarine section prototypes printed, including mid-section hull, bow and stern flow guide structures, and internal frames, awaiting precise assembly
Improvement in Assembly Precision and Sealing Performance
High-precision segmented printing ensures that the fit gaps between modules are controlled within design requirements, reducing the rework workload during later assembly and also lowering the risk of underwater leakage caused by excessive fit gaps.
Significant Reduction in R&D Prototyping Costs
Eliminating the high mold costs and large CNC processing costs of traditional processes, material utilization has also increased from about 30% in traditional machining to over 80%, effectively controlling early-stage R&D investment costs.
In addition, this equipment has good versatility. Besides submarine supporting parts, it can also be used for prototyping marine unmanned boats, underwater sensor brackets, maritime maintenance-specific tooling, and other products, thereby improving the return on equipment investment.
Case Summary
This cooperation with ST Engineering Land Systems is a successful practice of CreatBot large industrial 3D printers in the marine defense field.
We deeply understand that submarines, as complex large-scale equipment, have their own industry rules and technical limitations in R&D and manufacturing. CreatBot D1000 Pro HS does not attempt to overturn these rules, but by providing large-scale, high-precision, and high-stability additive manufacturing capabilities, helps customers optimize existing segmented modular R&D processes and solve efficiency bottlenecks in the prototype trial production stage of traditional manufacturing processes.
In the future, CreatBot will continue to deepen its expertise in industrial-grade 3D printing technology, providing reliable and efficient additive manufacturing solutions for customers in more high-end equipment manufacturing fields.
