How to Prepare Your CAD Files for Waterjet Cutting: Tips for Architects & Designers

At Tri-State Waterjet, we transform your digital designs into precision-cut architectural components every day. Here are a few simple but critical tips to make sure your files are clean, efficient, and fabrication-ready.

Start With the Right File Type

Our preferred formats are DXF, DWG, or STEP files created in AutoCAD, SolidWorks, Rhino, or Fusion 360.For graphic or signage work, AI (Adobe Illustrator) or EPS files can also work — just be sure paths are converted to outlines.

Pro Tip: Avoid sending PDF exports; they often lose line accuracy and scale.

Draw at Full Scale

Always design 1:1 in inches or millimeters, not scaled to sheet size. This ensures dimensional accuracy once the file is imported into our CNC waterjet software.

If you’re working with panel systems, include reference dimensions on the drawing so we can double-check accuracy before cutting.

Use Continuous, Closed Paths

Waterjet cutting follows vector paths — open or overlapping lines can cause jumps, breaks, or duplicate cuts. Before sending your file, use AutoCAD’s “OVERKILL” or “JOIN” command to clean geometry.

✔️ One continuous line per cut✔️ No gaps or overlaps✔️ Use polylines instead of individual segments

Label Layers Clearly

Organize each material, thickness, or part type on separate layers. For example:

• Layer 1: ⅛” Aluminum Panels

• Layer 2: ¼” Steel Brackets

• Layer 3: Etching/Marking Lines

This saves hours of processing time and ensures each piece is cut from the correct stock.

Include Notes and Tolerances

Add a short note or text block listing:

• Material type and thickness

• Edge finish preference (e.g., standard vs fine cut)

• Hole sizes or threads (if required)

• Any special instructions (tabbing, engraving, numbering, etc.)

We’ll verify these details before programming your job — preventing costly errors and ensuring your parts fit perfectly the first time.

Simplify What the Machine Doesn’t Need

Remove reference lines, hatches, or hidden geometry. A clean file = faster quoting, cleaner cuts, and fewer questions during setup.

Summary

Best Practice	Why It Matters
Use DXF/DWG/STEP	Maintains vector precision
Draw full scale	Eliminates scaling errors
Clean geometry	Prevents duplicate or missed cuts
Separate layers	Organizes materials and cut types
Include notes/tolerances	Improves communication and accuracy

Why Work With Tri-State Waterjet

Our in-house design team reviews every file before cutting to catch potential issues early — saving time and material. We combine engineering precision with real-world fabrication experience, ensuring your architectural or industrial project comes out perfect, every time.

From ACM panels to custom decorative screens, we take your CAD vision and deliver it in metal, glass, or composite form — with precision measured in thousandths.

FAQ:

Q1: What file format is best for waterjet cutting?

DXF or DWG files are preferred because they maintain vector precision and layer organization.

Q2: Can you cut directly from 3D models?

Yes we can import STEP or IGES files, then extract 2D profiles for cutting.

Q3: Should I include hidden lines or annotations?

No. Keep only the geometry that needs to be cut; remove hidden or reference lines.

Q4: What happens if my file isn’t clean?

We’ll contact you for clarification, but it can delay turnaround time and increase cost.

Q5: Do you help with CAD design or corrections?

Absolutely. Our design team can assist with file cleanup, nesting, and minor modifications.