MAXMAKE CNC Blog

Table of Contents

The launch of the MAXMAKE HiMill series has sparked a common question among creators and CNC enthusiasts: What exactly is the difference between the HiMill D1 and the D1S, and which one is right for my projects?

The short answer? Both machines are built to deliver the reliable desktop CNC performance MAXMAKE is known for. The choice ultimately comes down to your materials, workflow efficiency, and precision requirements.

In this guide, we'll break down the key differences between the two models to help you decide which machine best fits your needs.

HiMill D1 and D1S at a Glance

Shared Core CNC Capabilities

When using MAXMAKE's recommended machining parameters, both the D1 and D1S reliably complete the machining tasks advertised. Whether you are working with:

Both machines are capable of producing parts that meet your design expectations.

The introduction of the D1S does not change the fundamental cutting capabilities of the platform. Instead, its hardware upgrades are designed to improve efficiency and machine stability during high-intensity metal milling.

Unified MAXMAKE Ecosystem

Both models operate within the same MAXMAKE ecosystem, which includes:

From digital design to the finished part, users can expect the exact same operational experience on either machine.

Difference #1: Spindle Technology & Tool Change System

One of the most noticeable operational differences between the two machines lies in the spindle system.

HiMill D1: 250W Air-cooled Brushed Spindle

The D1 features a 250W air-cooled brushed spindle paired with a standard ER11 collet.

This setup provides consistent torque for machining wood, plastics, and non-ferrous metals. Tool changes are performed manually using two wrenches—a proven and widely adopted industry standard that delivers reliable results for everyday maker projects.

HiMill D1S: Brushless Spindle with QTC

The D1S upgrades to a 250W air-cooled brushless spindle.

Brushless motors operate more quietly, have a longer lifespan, and maintain consistent performance during extended machining sessions. More importantly, the D1S incorporates a Quick Tool Change (QTC) system. Instead of using two wrenches, users can swap bits instantly using a mechanical pull lever.

Why Does This Matter?

Imagine a situation where your project requires multiple operations, such as:

In this scenario, the HiMill D1 requires you to manually unscrew the collet and recalibrate the Z-axis zero for every single bit change.

By contrast, the D1S's QTC system can reduce a typical tool change from minutes to seconds.

While both machines cut the same materials accurately, the D1S drastically reduces setup time and minimizes human error during complex, multi-tool workflows.

Difference #2: Motion System & Accuracy

The second major difference lies in the motion drive system.

HiMill D1: Anti-Backlash Lead Screws

The D1 utilizes hardened linear shafts paired with anti-backlash lead screws. This mechanical design effectively minimizes play, delivering less than 0.04 mm backlash.

This setup is widely adopted in the desktop CNC industry because it offers:

For woodworking, acrylic cutting, and general DIY projects, anti-backlash lead screws remain a highly capable and trusted solution.

HiMill D1S: Precision Ball Screws & HG Linear Rails

The D1S upgrades the motion system with Precision Ball Screws and HG Linear Rails. This combination reduces mechanical friction and improves transmission efficiency.

Key advantages include:

These advantages become more noticeable during longer machining jobs, higher feed rates, and more demanding metal machining applications.

Difference #3: Precision in Real Projects

A common question is whether the D1S is significantly more accurate than the D1. The answer lies in the hardware tolerances.

For General Projects (Wood & Plastics):

When machining wood, MDF, or acrylic, the HiMill D1’s <0.04mm backlash and <0.02mm spindle runout are more than sufficient. For most hobbyist projects, the finished results from both machines will look virtually identical to the naked eye.

For Precision Metal Machining:

This is where the D1S shines. The combination of Precision Ball Screws & HG Linear Rails and a brushless spindle reduces the backlash to <0.02mm and runout to an impressive <0.01mm. This tighter tolerance is crucial when milling hard materials like aluminum or brass, ensuring smoother edge finishes and superior dimensional accuracy.

Difference #4: Workflow Efficiency

Beyond hardware specifications, another important difference is how each machine fits into different workflows.

For most everyday projects, both the HiMill D1 and D1S deliver reliable machining performance and excellent results.

As projects involve more machining operations and more frequent tool changes, the HiMill D1S offers a smoother workflow. Its Quick Tool Change (QTC), Precision Ball Screws & HG Linear Rails, and brushless spindle help make extended machining sessions more efficient and consistent.

Which One Should You Choose?

Choosing between the HiMill D1 and D1S isn't about choosing the "better" machine—it's about choosing the one that best fits the way you work.

HiMill D1 may be the better fit if you:

HiMill D1S may be the better fit if you:

Wrapping Up

Both the HiMill D1 and D1S are built on the same MAXMAKE platform and share the same goal: making capable desktop CNC machining more accessible.

HiMill D1 delivers an excellent balance of performance, precision, and value for everyday makers.

HiMill D1S builds on that foundation with upgrades designed for smoother workflows, higher repeatability, and greater efficiency when projects become more demanding.

Whichever model you choose, you'll be working within the same MAXMAKE ecosystem—with the same software, accessories, and commitment to helping makers create with confidence.