Bring automated carving into your home, shop, or makerspace with a LongMill Benchtop CNC.
The LongMill MK3 represents the best entry-level hobby CNC in terms of performance, design and customer support. It’s the fastest, most rigid CNC machine in its size and price category, and comes pre-assembled so you can be up and running within an hour, right out of the box.
SHIPPING SEPTEMBER 2026.
Speed & Rigidity
Its linear rail system allows for production-level performance not found in similar hobby-level machines. Cuts up to 275 inches per minute.
Reliability & Performance
The MK3 runs on a closed-loop stepper motor system, and comes equipped with a grblHAL-based CNC controller.
Quick Setup
Comes pre-assembled for easy set up, and its benchtop design allows for integration of clamps, jigs and accessories to suit your workflow.
Project Ready
It can handle materials ranging from softwoods to hardwoods, plastics and foams, to acrylics and even aluminum Offers 4.6″ of Z-Axis travel and compatible with 4th axis rotaries.
Quick Setup & Dedicated Support
Built with hobbyists and new comers in mind, this turnkey benchtop CNC system – that’s also easy on the wallet – comes pre-assembled for quick and easy carving on day one.
It’s ease of use is backed by an extensive library of assembly instructions, accessory support guides and a dedicated resource team.
FREE CNC Control Software
Every LongMill is fully supported by gSender, our FREE CNC control software. We built this open-source interface with features like surfacing, calibration start from line, tool mapping visualizers, and a whole lot more. gSender gives you everything you need to control your machine and over 60,000 people worldwide use it to get their job done.
Downloads available for Windows, Intel & Silicon Mac, Rasp Pi and Intel Linux.
Incredible Community
No matter if you’re a beginner or an experienced CNCer, we’re here every step of the way to help, but so too are tens of thousands of worldwide Sienci Labs users.
Our community is packed with passionate CNCers, of all different types and skill levels, ready and willing to help you with tips, tricks and hacks. Join one of our communities today.
Wide Selection of Accessories & End Mills
Whether you’re looking for dust shoes, end mills, design software or replacement parts, we’ve got you covered.
