Rat Rig StrongHold ONE CNC - 1250 x 1250 - Machine Kit
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Stronghold One
Introducing the StrongHold ONE - a CNC machine designed to meet the demands of hobbyists, makers, woodworkers and fabricators. A versatile machine that can be configured to fit your needs with customizable sizes and electronics.
With three different working areas to choose from, ranging from 750x750 mm to 1250x1250 mm, the machine provides ample space for your projects. The maximum Z clearance of 130mm allows you to work with thicker materials, while the frame made of 40 series extrusion provides a sturdy and stable platform for your work.
The HG15 & MGN15 rails and TR8x8 lead screws transmission on all axes ensure smooth and precise movement, giving you great accuracy and repeatability. The 12mm thick XY joiner plates provide additional rigidity and reduce vibration, resulting in a smoother and more consistent cut.
The StrongHold ONE is equipped with inductive endstops, ensuring accurate and reliable positioning, the optional spindle/router mount available in different diameters supports a wide range of tools. This means you can work with a variety of materials, including wood, foam, plastics, and soft metals, with ease and efficiency.
The StrongHold ONE also features an integrated drag chain-based cable management system, keeping your workspace tidy and organized, and reducing the risk of damage to your machine.
With its configurable size and electronics, high-quality construction, and advanced features, the StrongHold ONE will become an essential part of your workshop.
Electronics Options
We offer 2 electronics bundles for the Stronghold One.
Each bundle includes all the necessary power supplies, wiring & connectors for a complete and well thought out wiring layout.
Beginner Bundle
Optimised to work mostly with soft materials:
- Softer woods
- MDF
- Acrylics
- PVC
- Foams
- Can take occasional light jobs with aluminium
Tool: Router
- Connects directly to the mains, it doesn’t interface with the remaining machine electronics
- 6 speed settings (but no variable speed while in operation)
Controller:
- Rat Rig Rodent
- Features integrated stepper motor drivers
Compatible Firmware:
- FluidNC
- GrblHAL
Beginner Bundle includes:
- 230V Rat Rig Router tool and CNC machined aluminum mount
- Rodent CNC controller (TMC2160) and Wi-Fi antenna
- LDO High Torque Stepper motors (345oz-in)
- 250 W fanless PSU
- Wiring & connectors
Bill of materials:
Intermediate Bundle
Optimised for use with a broad range of materials with high precision:
- Woods
- MDF
- Acrylics
- PVC
- Foams
- Aluminium
- Brass
- Copper
- Can take occasional light jobs with steel
Tool: 2.2 kW full-size 80 mm Spindle
- Includes a VFD unit (Variable Frequency Drive), which allows you to program different rotation speeds while in operation
- High-precision tool
- Water-cooling system prevents the motor from overheating even after prolonged and intensive use
- Includes ER20 collet set
Controller:
- Rat Rig Rodent
- Features integrated stepper motor drivers
Compatible Firmware:
- FluidNC
- GrblHAL
Intermediate Bundle includes:
- Full size 2.2 kW 80 mm GPenny Bullet Spindle
- Huanyang VFD
- Water cooling unit
- Two CNC machined aluminum spindle mounts
- LDO High Torque Stepper motors (345oz-in)
- 350 W PSU
- Contactor for safe E-Stop
- All wiring and connectors
Bill of materials:
Not included
- Power cords - you will need to source your own power cords to connect your PSU(s) to mains.
- You may need a few zip ties for cable management.
- Spoiler board - use your own preferred locally sourced material. Check the correct spoiler board size for your machine in the above Machine Dimensions. The thickness of the spoil board will affect the maximum working height. It is recommended to use a spoiler board which is at least 10mm thick.
Cuttable Materials
Plastics: All plastics suitable for CNC machining
Composites: Carbon fiber, MDF, particle board, etc
Metals: Soft metals (Aluminium, Brass, Copper)
Machine Specifications:
Maximum Z Travel: 105mm
Maximum Z Clearance: 130mm (Excluding spoilboard)
Spindle Mount: 43mm, 65mm, 80mm
Linear Rail - X MGN15
Linear Rail - Y HG15
Linear Rail - Z MGN15
Transmission - X Leadscrew - TR8x8
Transmission - Y Leadscrew - TR8x8
Transmission - Z Leadscrew - TR8x8
Full Step Distance - X 0.04mm
Full Step Distance - Y 0.04mm
Full Step Distance - Z 0.04mm
Machine Dimensions:
Rat Rig Stronghold ONE 750x750- Machine Dimensions X/Y/Z: 1165mm x 1165mm x 570mm
- Frame Footprint X/Y: 1054mm x 1047mm
- Machine Work Area X/Y: 744mm x 750mm
- Spoilboard Size X/Y: 864mm x 1000mm
- Machine Dimensions X/Y/Z: 1165mm x 1665mm x 570mm
- Frame Footprint X/Y: 1054mm x 1547mm
- Machine Work Area X/Y: 744mm x 1250mm
- Spoilboard Size X/Y: 864mm x 1500mm
- Machine Dimensions X/Y/Z: 1665mm x 1665mm x 570mm
- Frame Footprint X/Y: 1554mm x 1547mm
- Machine Work Area X/Y: 1244mm x 1250mm
- Spoilboard Size X/Y: 1364mm x 1500mm
CAD Model
StrongHold ONE 750x750: Fusion360 CAD Model
StrongHold ONE 750x1250: Fusion360 CAD Model
StrongHold ONE 1250x1250: Fusion360 CAD Model
Build Guide
An on-line step-by-step build manual with detailed images, diagrams and instructions is available here.
BILL OF MATERIALS
PRINTED PARTS STL FILES
If you have a 3D Printer and want/need to reprint a printed part, you can find the files here. These printed parts are included in the kit by default.
Community Support
Join our communities and connect with other Rat Rig CNC Machine users:
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