What File Formats Do You Accept for Engineering and CNC Work?

retail-display-spec-sheet-translation

A Manufacturer’s Guide for Designers, Agencies, and Retail Brands
By Yan Luo | Founder, Samtop Display

Yes — Samtop accepts most 2D and 3D file types, including .STP, .DXF, .AI, .SKP, and even hand sketches. Whether you’re sending visual renders or engineering CAD, we’ll turn it into a production-ready retail display.

You’ve finished a design — now you’re ready to brief a factory. But you’re wondering:

“What file types do I need to send?”
“Is PDF enough?”
“Do I have to prepare CNC drawings too?”

Many manufacturers demand precise engineering files — but creative teams often don’t have them ready.
Result: frustrating back-and-forth, delayed samples, or even rejected production.

At Samtop, we bridge the gap.
Whether you send .STP, .SKP, .PDF, or even just a photo — we’ll interpret, convert, and engineer your display into a fully manufacturable solution.

✅ File Types We Accept (And Prefer)

FormatDescriptionPreferred?
.STP / .STEPUniversal 3D CAD format, CNC-ready✅ Best
.IGS / .IGESGeometry exchange, smooth curves
.DXF / .DWGCNC laser cutting, panel layout
.AI / .EPSVector artwork for UV print, cutting, graphics
.PDF (with size)Quoting, dieline reviews, basic artwork✅ Initial
.3DM (Rhino)Native for creative designers
.SKP (SketchUp)Retail layout, concept visuals
.OBJ / .FBXRender files, reference geometry⚠️ Visual only
Photos / SketchesMoodboards, past samples, visual notes✅ We’ll reverse engineer

📩 Not sure what you have? Send it anyway — we’ll advise in 24h.


🛠️ What Happens When You Send a File

At Samtop, we don’t just “cut what you give us.” We translate your design into production logic.

Here’s what we do internally:

  • Import your files into SolidWorks, Rhino, or AutoCAD
  • Add CNC paths, holes, LED channels, joinery logic
  • Build assembly systems (magnet, screw, slot-in, etc.)
  • Flatten 3D geometry into cutting files (.DXF, .DWG)
  • Simulate flat-pack structure + box size
  • Review for material compatibility & stress tolerance

🔄 Result: A full manufacturing tech pack — ready for QC, quoting, and sample approval.


🔍 File Requirements by Material or Process

Material / ProcessRequired Format
Metal CNC (cut + bend).DXF + bend angles
Acrylic laser cutting.AI / .DXF / .STP
Wood / MDF CNC routing.DXF / .STEP
Fiberglass / Resin props.STEP / .IGS + radii
Vacuum forming mold.STP 3D geometry
Printing / branding graphics.AI with outlines / CMYK
LED layout / wiring map.DWG / .PDF + voltage

🧪 Need help converting? We do it in-house — no need to outsource.


🧪 Case Study: From Sketch + PDF → CNC-Ready Display

Client: US-based design agency
Input: SketchUp file + annotated PDF
Display: PU-wrapped tray + LED acrylic + printed graphics
Problem: No engineering files, no cutting paths

Samtop Solution:

  • Imported .SKP and rebuilt in SolidWorks
  • Added LED slot + cable channel + modular fit
  • Created .DXF files for CNC routing & acrylic cutting
  • Packaged into gold sample with all parts labeled

✅ Delivered production files in 4 working days
✅ Quoting ready within 24h
✅ Final display shipped to 6 countries


🧰 Samtop’s Engineering Stack

We use:

  • SolidWorks — 3D manufacturing logic
  • AutoCAD — CNC panel nesting & tolerance spec
  • Rhino + KeyShot — for visual render-to-CAD workflows
  • Fusion 360 — for detail machining simulation
  • On-site CNC, UV printing, LED testing, PU casting, resin

🧠 You don’t just get “a factory” — you get a design-interpreting, spec-converting, globally tested production partner.


🧾 What to Send Us for Quoting

AssetWhat We Accept
Visual referencesJPG / PNG / KeyShot / Screenshot
DimensionsWidth, height, depth (mm/in)
Artwork files.AI / .PDF with bleed, curve fonts
CAD files.STEP / .DXF / .DWG — if available
NotesMaterial idea, finish, shipping need, special LED

Even if you only have a visual — we’ll engineer the rest.


👤 Who Should Read This?

Creative agencies — Don’t let file format stop approvals
Retail designers — Brief faster, even without CAD
Procurement teams — Send specs that save time
Brand managers — Gain confidence in visual-to-engineering workflow
Solo founders / startups — Start with photos, we’ll CAD the rest


🎯 Conclusion: Your Files Don’t Have to Be Perfect

At Samtop, we turn your ideas into engineered reality — no matter the file type.

✔️ Sketch? ✔️ PDF? ✔️ Rhino? ✔️ STEP? ✔️ AI?
We take them all — and give back a ready-to-produce structure that ships globally.

📧 Send us your files today for fast quoting + engineering feedback:
📩 [email protected]
🌍 www.samtop.com

Samtop Display — From File to Fixture. Engineered Without Friction.

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