Convert 2D Sketch to STL File

I need an STL file created from a 2D sketch. The design is in JPEG/PNG format.

Requirements:
- Convert basic shape from 2D sketch to STL
- Deliverable in STL format

Ideal Skills and Experience:
- Proficiency in 3D modeling software
- Experience with 2D to 3D conversion
- Attention to detail for accurate representation
ENGINEERING DRAWING SHEET — 71 mm WHEEL CENTER CAP (REI RELIEF)

PROJECT: Custom Snap‑Fit Center Cap
CLIENT: Bill
REVISION: A
DATE: 2026‑04‑03
DRAWN BY: CAD Technician (spec provided)

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1. PART SUMMARY

A 71 mm snap‑fit wheel center cap with a recessed emblem field and a raised stylized hair‑outline relief. Two tab‑fit variants required (tight and loose). Final part must be watertight and suitable for FDM printing.

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2. PRIMARY DIMENSIONS

Cap Body

• Outer Diameter: Ø71 mm
• Snap‑Fit Bore Diameter: Ø67 mm
• Visible Cap Height: 6.5 mm
• Recessed Emblem Field: 4.5 mm deep
• Raised Emblem Zone: +2.0 mm above recessed field
• Emblem Field Diameter: Ø65 mm


Tab Geometry

Tight Fit Variant:

• 4 tabs, 6.5 mm engagement depth


Loose Fit Variant:

• 4 tabs, 5.0 mm engagement depth


Common Tab Notes:

• Even spacing at 90°
• Slight inward draft
• Rounded leading edges for snap‑fit compliance


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3. RELIEF ARTWORK — POSITIONING & SCALING

A silhouette image will be supplied separately. Use the following constraints to size and position the relief:

Bounding Box

• Width: 52 mm
• Height: 46 mm
• Center: aligned to emblem field center
• Vertical Offset: +2 mm (art sits slightly high)


Extents Relative to Cap Center

• Leftmost: −26 mm
• Rightmost: +26 mm
• Top: +21 mm
• Bottom: −25 mm


Relief Construction

• Relief Height: +2.0 mm above recessed field
• Outer Silhouette Stroke: 1.5 mm width
• Interior Engraved Lines:• Width: 0.8–1.0 mm
• Depth: 0.8–1.0 mm

• Minimum Radius: ≥0.5 mm for FDM printability


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4. RECOMMENDED CAD WORKFLOW

1. Model cap body: Ø71 mm × 6.5 mm.
2. Cut recessed emblem field: Ø65 mm × 4.5 mm deep.
3. Add raised emblem zone: +2.0 mm.
4. Build snap‑fit ring and tabs (tight + loose variants).
5. Insert silhouette as canvas on emblem field.
6. Scale to 52 × 46 mm bounding box; center; offset +2 mm vertically.
7. Trace outer silhouette; extrude 2.0 mm.
8. Add interior engraved lines (0.8–1.0 mm).
9. Combine into single watertight solid.
10. Export STL for FDM printing.


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5. GENERAL NOTES

• All dimensions in millimeters.
• Ensure manifold geometry; no non‑manifold edges or inverted normals.
• Avoid sharp internal corners; maintain ≥0.5 mm fillets where possible.
• Relief must remain fully inside Ø65 mm emblem field.
• Provide both tight and loose tab variants as separate bodies.


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