About Colex Forge
The Project
Colex Forge is a 14-week project to convert an industrial Colex SharpCut SXC flatbed cutter into a large-format multi-material 3D printer. The machine's existing precision XY gantry, Panasonic servo motors, and WinCNC controller provide an industrial-grade motion platform — we're adding 3D printing capability as a new tool in the tool bay.
Why Convert a CNC?
The Colex SharpCut SXC already has everything a large-format printer needs: a rigid steel-welded frame weighing 3,500 lbs, precision rack-and-pinion drive with Panasonic servos, a 67" × 126" working area, and a 6-axis WinCNC controller with 128 auxiliary I/O channels. Rather than building a large printer from scratch, we're leveraging this industrial platform and adding extrusion heads, heated bed zones, and AI monitoring.
Capabilities
- Print envelope: 48" × 120" × 24" (1,200 × 3,050 × 600mm)
- Carbon fiber: CF-PETG and CF-Nylon via hardened DiamondBack nozzle
- Full color: CMYK mixing via Zonestar 4-in-1 hotend
- AI monitoring: Real-time defect detection with gantry-mounted camera
- Real-time scanning: Creality Raptor Pro mounted on print head
- Industrial precision: ±0.05mm positioning from Panasonic servos
Workshop Equipment
This project leverages a full workshop of complementary tools: a Creality K1 Max for printing custom brackets and adapters, a laser cutter for structural steel/aluminum parts, the Creality Raptor Pro scanner for measurement and real-time monitoring, and a Xante X55 UV printer for labels and markings.
Design Philosophy
Every design decision optimizes for leveraging the Colex's existing capabilities. We're not fighting the machine — we're extending it. The WinCNC controller maps extrusion to its A-axis, heater controls to auxiliary outputs, and camera triggers to input monitoring. The machine doesn't know it's 3D printing — it's just running G-code.
Sister Projects
Colex Forge is part of the Short Circuit family of build projects. Visit the main site to see other ongoing builds including the J-4.2 robot build.