The MASSO G3 CNC controller, power supply, stepper motors, cable system and optical encoder are sold as a part of our Accu-Pro line of machines and are not available for purchase separately or as an upgrade option to existing machines.
Important Update Regarding Sherline Products
October 20, 2026
We would like to share an encouraging development regarding the future of Sherline Products.
We are currently in discussions with an American manufacturer regarding the potential purchase of Sherline’s intellectual property and remaining inventory. The goal of this proposed acquisition is to preserve and revitalize the Sherline brand while providing continued availability of replacement parts, accessories, and machines for our valued customers.
As these discussions progress, we have agreed to temporarily suspend accepting new orders, effective October 19, 2026. This will allow us to preserve our remaining inventory while negotiations are underway.
Although no final agreement has been reached, we are hopeful that this opportunity will provide a positive path forward for the Sherline name and the customers who have trusted our products for more than five decades.
We sincerely appreciate your patience, understanding, and continued loyalty during this transition. We will share additional information as soon as it becomes available.
Our greatest hope is that the Sherline legacy of quality, precision, and American craftsmanship will continue for generations to come.
Karl Rohlin III and Charla Papp
Co-Owners, Sherline Products, Inc.
October 20, 2026
We would like to share an encouraging development regarding the future of Sherline Products.
We are currently in discussions with an American manufacturer regarding the potential purchase of Sherline’s intellectual property and remaining inventory. The goal of this proposed acquisition is to preserve and revitalize the Sherline brand while providing continued availability of replacement parts, accessories, and machines for our valued customers.
As these discussions progress, we have agreed to temporarily suspend accepting new orders, effective October 19, 2026. This will allow us to preserve our remaining inventory while negotiations are underway.
Although no final agreement has been reached, we are hopeful that this opportunity will provide a positive path forward for the Sherline name and the customers who have trusted our products for more than five decades.
We sincerely appreciate your patience, understanding, and continued loyalty during this transition. We will share additional information as soon as it becomes available.
Our greatest hope is that the Sherline legacy of quality, precision, and American craftsmanship will continue for generations to come.
Karl Rohlin III and Charla Papp
Co-Owners, Sherline Products, Inc.
- Built-in Driver box (Converts g-code to steps to run DC stepper motors)
- Output cables for X, Y, Z, and A pre-wired with DIN plugs for stepper motors
- Keyboard and mouse (you supply the monitor)
- Processor Speed: 2 GHz or faster
- RAM: 2 GB
- Hard Drive: 500 GB
- Internal drive: DVD-RW
- External drive: 4 GB USB Flash drive for transferring g-code files
- Current: Internal switches are set to 110VAC but can be reset for operation with 230 VAC
- Installed software: Ubuntu 12.04 Linux-based OS with Linux CNC 2.6.11 4-axis CNC software.
- 90-day warranty on CNC and computer-related components.
- Keyboard and mouse (you supply the monitor)
- Processor Speed: 2 GHz or faster
- RAM: 2 GB
- Hard Drive: 500 GB
- Internal drive: DVD-RW
- External drive: 4 GB USB Flash drive for transferring g-code files
- Current: Internal switches are set to 110VAC but can be reset for operation with 230 VAC
- Installed software: Ubuntu 12.04 Linux-based OS with Linux CNC 2.6.11 4-axis CNC software.
- 90-day warranty on CNC and computer-related components.
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DVD: Linux operating system (Ubuntu v12.04) with LinuxCNC software (v2.6.11)
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CD: Installation and troubleshooting instructions, along with free or low-cost utilities, including AutoEditNC, ACE Converter, MeshCAM, DeskEngrave, Freemill, Inkscape, and FreeCAD


LinuxCNC Computer System with Driver Box


LinuxCNC Computer System without Driver Box


4-Axis CNC Driver Box
In designing our CNC systems, we fitted the driver board and power supply directly inside the PC. For users who’d prefer to build their own setup or use a different PC, we offer this complete driver box and power supply as a standalone solution.
Housed in an anodized aluminum enclosure, this unit includes four stepper-motor drivers — labeled X, Y, Z and A — each terminating in a dedicated cable that plugs directly into the corresponding pre-wired Sherline stepper motor. The kit also includes a 6′ (approx.) DB-25 parallel cable to connect the box to your computer’s parallel port, and an externally-mounted 24 VDC power supply (included) that simply plugs into the driver box.


Sherline Linux OS/LinuxCNC Software
The discs include the following items and require a PC equipped with a CD/DVD drive:


