How the miniMonster Team Built the CNC Milling Machine with JLCMC Components
4 min
- Project Overview
- Watch the Build in Action
- Building a Compact High-Performance CNC Milling Machine
- JLCMC Components Supporting the CNC Milling Machine Build
- Looking Ahead
Project Overview
The Lemontart 33 Metal is a high-performance DIY CNC milling machine designed and developed by the miniMonster team on YouTube. Engineered for high-speed machining of aluminum, plastics, hardwood, and light-duty steel, the machine combines precision, modularity, and accessibility in a compact form factor.
JLCMC is proud to support this collaborative project by supplying industrial-grade motion components, bearings, pneumatic fittings, and servo systems to innovators within the global maker and CNC community.
With support from JLCMC's hardware solutions, the miniMonster team successfully transformed the Lemontart 33 Metal from concept into a fully functional CNC milling machine.
Watch the Build in Action
In this video, the miniMonster team showcases the complete Lemontart 33 Metal platform, including:
- Real-world milling demonstrations on steel, wood, and plastics
- Key industrial-grade JLCMC components used in the CNC system
- Compact and high-rigidity machine structure design
- A small-footprint yet high-performance CNC platform solution
The project highlights how miniMonster combines custom engineering with industrial-grade JLCMC components to develop compact yet powerful CNC systems.
Building a Compact High-Performance CNC Milling Machine
The Lemontart 33 Metal was designed as a compact CNC milling machine optimized for high-speed cutting while remaining accessible to DIY builders and self-assembly users.
Key machine specifications include:
| Specification | Metric |
| X Travel | 330mm (13'' inch) |
| Y Travel | 280mm (11'' inch) |
| Z Travel | 130mm (5.1'' inch) |
| Maximum Axis Speed | 36,000 mm/min (1417 ipm) |
| Maximum Recommended Spindle Power | 4kW (5.4hp) |
| Maximum Spindle Weight | 10kg (22 Ibs) |
| Frame Material | 6061 Aluminium |
| Table Material | 4140 Annealed Steel |
The platform utilizes precision-ground C5 ball screws, heavy-preload linear guides, and support for ER, HSK25E, ISO20, and ISO10 spindle systems.
According to the miniMonster team, the reduced machine footprint helps improve manufacturing efficiency and lower international shipping costs without significantly compromising rigidity or machining performance.
JLCMC Components Supporting the CNC Milling Machine Build
To support the Lemontart 33 Metal project, the miniMonster team sourced a wide range of industrial components from JLCMC, including:
| Category | Components / Features | Purpose / Benefits |
| Fasteners | DIN7984 hex socket screws DIN7991 countersunk screws DIN912 socket head cap screws Shoulder screws | Secure assembly with high precision and reliability |
| Precision Parts | Shims tape, and arbor shims Ball screw supports units | Ensure accurate alignment and spacing in assemblies |
| Bearings & Motion Components | Angular contact bearings Deep groove ball bearings Precision ground ball screws Heavy-duty linear guides | Provide smooth, stable, and repeatable linear and rotational motion; support high-load precision movement |
| Pneumatics | Polyurethane pneumatic tubing Push-to-connect pneumatic fittings Manual valves | Enable flexible and reliable pneumatic control |
| Damping & Support | Polyurethane damping materials PA leveling feet | Reduce vibrations, stabilize the machine base |
| Cutting Tools | End mills | Perform material removal with precision for milling operations |
| Couplings & Transmission | Diaphragm couplings | Transmit motion between shafts with minimal backlash and vibration |
| Motion Control & Electronics | Leadshine ACM1 servo motors Leadshine L6 servo drives Leadshine servo encoder and power cables | Deliver precise motion control and support modular upgrade paths |
| Cable Management | Cable Carriers | Organize and protect motion-control cables during dynamic movement |
| Overall Benefits | — | Compact structural integration, stable linear motion, long-term durability, industrial-standard hardware, focus on design innovation |
JLCMC provides reliable industrial hardware and other components so machine developers can focus on design innovation and system integration, and ensure critical mechanical and motion components meet industrial standards.
Looking Ahead
The Lemontart 33 Metal CNC milling machine reflects a growing trend within the CNC community toward modular, repairable, and highly customizable machine platforms.
At JLCMC, we are proud to support creators, engineers, and independent machine developers by providing accessible industrial components for projects ranging from DIY automation systems to advanced CNC machinery.
We welcome creators, engineers, and enthusiasts to connect with us and share ideas through our Contact Us page.
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