PwnCNC Advanced CNC Conversion Kit with MASSO G3 Touch

PwnCNC Advanced CNC Conversion Kit

Upgrade a compatible CNC machine with a professionally integrated MASSO G3 Touch control system, closed-loop motion, prewired expansion ports, and industrial-style electronics.

The Advanced Conversion Kit is designed for CNC owners who want to replace outdated, unreliable, or limited factory electronics with a more capable, serviceable, and expandable control platform. It can be used to modernize many hobby-class and prosumer machines or as the electronics foundation for a custom CNC build.

Compare Core and Advanced Conversion Kits

Not sure whether this kit fits your CNC?

Compatibility depends on your machine, motor mounts, couplers, wiring, sensors, spindle or router setup, available power, accessories, and how much machine-specific work you are comfortable completing.

Request a Free CNC Upgrade Compatibility Review →

What’s Included

PwnCNC-branded MASSO G3 Touch controller with Advanced-level firmware
Prewired inlet panel for future accessory expansion
PwnCNC power box with 36V power supply for 110V or 220V AC input
Four proximity homing switches
Double-shielded stepper cables
Closed-loop stepper motors when a motor package is selected

Motor Package Options

2Nm package: motors for X, dual Y, and a Z-axis motor with electric brake
3Nm package: higher-torque motors for X, dual Y, and a Z-axis motor with electric brake
No motors: for advanced installers supplying their own compatible motors and wiring

Prewired Expansion Connections

The inlet panel supports future plug-and-play expansion for compatible accessories, including:

These accessories are not included and are sold separately.

Common Applications

Onefinity, Shapeoko, OpenBuilds, WorkBee, X-Carve, Mega V, and similar CNC retrofits
Replacing unsupported or unreliable factory controllers
Adding closed-loop motion control
Preparing a machine for spindle, probing, rotary, or ATC upgrades
Custom CNC machine builds using NEMA 23-style motors

What You’ll Need

A mechanically sound CNC machine or custom frame
Compatible motor mounts and couplers
Suitable mounting locations for homing switches
Proper grounding and shield termination
Willingness to complete machine-specific wiring, mounting, and calibration

Installation Documentation

Our Conversion Kit Knowledge Base covers prewiring, grounding, motor setup, homing, first power-on checks, and troubleshooting guidance.

Before ordering, review What to Know Before Converting Your CNC Machine, especially if you plan to reuse existing motors, couplers, wiring, or switches.

Lead Time

These kits are made to order. Please allow approximately one to two weeks for assembly and shipment.

Compatibility and Warranty

Installing this kit requires removing the machine’s original electronics and will typically void the original manufacturer warranty. Machine-specific modifications may be required. PwnCNC cannot guarantee compatibility with undocumented, proprietary, or unsupported third-party components.

Optional Professional Installation

Professional installation is available at PwnCNC HQ in Northwest Arkansas for an additional service fee. Installation may include controller mounting, switch brackets, wiring, calibration, and operational verification.

Need Help?

Submit a Free CNC Upgrade Compatibility Review before ordering if you are unsure which kit or motor package is appropriate.

Phone: 479-480-4337
Email: support@pwncnc.com

Great Product

I was overwhelmed with this purchase, but Daniel was patient and worked me through it. I can now Dominate my CNC!!!

complete kit

this kit will save you a bunch of time in wiring up the masso, the kit worked right out of the box and made upgrading my DMC2 mini a breeze.

Great Kit

This kit has made a cnc router with very poor electronics and a fantastic mechanical side a production machine.
There is a small issue with one of the cable lengths but a workaround has been provided. It’s still worthwhile getting this kit to make a good machine great.

Excellent Upgrade

The conversion kit is an impressive upgrade for any CNC machine. I have a Shapeoko 5 Pro 4' x 4' machine.

Replacing the controller and electronics was very straightforward. It's worth noting that there are no instructions included in the kit - it's intended to convert any CNC with Nema23 motors to a PwnCNC powered machine. Despite the lack of machine specific instructions, it was clear from all of the connections how to wire the machine to the new controller and power supply. Support quickly got my few questions answered and I was up and running again quickly (I think the conversion took about 6 hours).

The lack of instructions is not a downside - there are so many options for how a CNC machine can be configured that creating documentation would be a daunting task. As I mentioned before, support answered my questions quickly and solved my problems on the first go around. Any machine specific issues are going to be easy to deal with.

The Masso controller is leaps and bounds ahead of what I previously had. Although there's a bit of a learning curve, the community and support are there to help out. With just a change to the post-processor, I'm seeing a huge quality improvement using the same CNC bits and wood from the same board.

The table the CNC sits on is now the limiting factor in how it performs.

Conversion Kit on Shapeoko 5 Pro

Relatively easy to set up. Many more options with the Masso controller. Wiring way better than the stock. Support was prompt with a few questions I had. Would highly recommend!