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

A Manufacturer’s Guide for Designers, Agencies, and Retail Brands
Table of Contents
If you’re looking for the right file formats for retail display engineering, Samtop supports most formats including .STEP, .DXF, .AI, and more — even hand sketches. From visuals to CNC-ready files, we bridge the gap for agencies, designers, and global brands.
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 Formats for Retail Display Engineering: What You Can Send
These file formats for retail display engineering allow us to streamline CNC, LED, and branding workflows.
Format | Description | Preferred? |
---|---|---|
.STP / .STEP | Universal 3D CAD format, CNC-ready | ✅ Best |
.IGS / .IGES | Geometry exchange, smooth curves | ✅ |
.DXF / .DWG | CNC laser cutting, panel layout | ✅ |
.AI / .EPS | Vector 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 / .FBX | Render files, reference geometry | ⚠️ Visual only |
Photos / Sketches | Moodboards, 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 / Process | Required 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
Asset | What We Accept |
---|---|
Visual references | JPG / PNG / KeyShot / Screenshot |
Dimensions | Width, height, depth (mm/in) |
Artwork files | .AI / .PDF with bleed, curve fonts |
CAD files | .STEP / .DXF / .DWG — if available |
Notes | Material 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
Don’t worry about perfect formats — we’ll convert your input into engineered retail display files.
Packaging Digest: CNC in Retail Fixtures
Rhino 3D for Retail CAD Modeling
❓ FAQ:Retail Display
1. What file types does Samtop accept for retail display engineering?
We accept .STP, .STEP, .DXF, .DWG, .AI, .PDF, .SKP, .3DM, .OBJ, and even hand sketches or photos. Our in-house engineers convert all formats into CNC- and production-ready technical drawings — no external freelancer needed.
2. Can I send a SketchUp or KeyShot file instead of CAD?
Yes. We frequently work from .SKP, .FBX, or KeyShot visuals. Our engineering team rebuilds the geometry in SolidWorks or Rhino, adds joinery logic, and prepares all files for CNC routing and UV printing.
3. What if I only have a photo or a past sample — no files?
That’s completely fine. Samtop offers reverse engineering services. You can send us a photo, video, or physical sample. We’ll scan or rebuild it into a 3D model, recommend optimizations, and deliver CAD + prototype within days.
4. Do you help convert PDFs into CNC cutting files?
Yes. If your PDF includes measurements or layout references, we can extract vector paths and convert them into .DXF or .AI for laser cutting, printing, or vacuum forming — all in-house.
5. What’s the preferred format for acrylic cutting or MDF CNC routing?
For acrylic laser cutting: .AI or .DXF.
For MDF or wood CNC routing: .STP or .DXF with correct depth/tolerance notes.
Our team will confirm and adjust your files as needed.
6. Can I send files via email or need a special platform?
You can send files via email, WeTransfer, Google Drive, Dropbox, or even zip them in a simple reply. We’ll reply within 24 hours with feedback or request any missing information.
7. What if I need help preparing print artwork (e.g. UV branding)?
We accept .AI or .PDF files with outlines and CMYK. If you’re unsure, send your original file — our graphics team will prepare it for production and confirm a print mockup.
8. How soon can you quote once I send files?
With basic visuals + dimensions, we usually quote within 24–48 hours. If you have engineering files like .STP/.DXF, we can fast-track CNC simulation and provide even faster DFM feedback.