Urgent Dinosaur Gua Sha CAD Model

# 3D CAD Modelling – Dinosaur Shaped Gua Sha Product (Urgent)

I'm looking for an experienced 3D CAD designer to help me develop a small, dinosaur-shaped gua sha product for my project.
I need the appearance model completed within 1–3 days so I can proceed with resin 3D (clear v4) printing as soon as possible.

# Project Overview

The product is a compact, handheld gua sha massage tool designed with a soft, organic, erogomic dinosaur-inspired form. It is intended to promote emotional connection between couples through an interactive LED lighting feature.

The concept is that when one person presses the button, a soft LED light activates in both connected devices.

The design should maintain its smooth, ergonomic curves, four-finger grip, and translucent appearance, as shown in the attached reference images.

# Phase 1 – Appearance Model (URGENT – First Priority)

I need the exterior 3D model completed first, ideally within 1–3 days.

**Requirements:**

- Follow the attached exterior reference image as closely as possible, maintaining the original dinosaur shape, organic curves, rounded spikes, and ergonomic four-finger grip.
- Overall dimensions: **100 mm (H) × 42 mm (W) × 48 mm (D)**.
- Neck width: approximately 24 mm.
- Side button: approximately Ø10 mm, positioned 62 mm above the bottom, away from the grip area.
- The head and body must form one continuous shape, with no visible separation line.
- The model should be **hollow rather than solid** to minimise resin consumption and printing costs.
- Suggested initial outer wall thickness: approximately **2 mm**, subject to printability.
- Include the external button shape, but the button does not need to function.
- No working electronics, battery, wiring, or internal engineering components are required for Phase 1.
- Maintain the soft, smooth, organic aesthetic, with no unnecessary sharp edges.

**3D Printing Information:**

- Printer: Formlabs Form 2 (SLA)
- Material: Clear V4 Resin
- Intended finish: Translucent / frosted appearance
- Printing location: University 3D printing facility

Please ensure the model is suitable for SLA resin printing, including appropriate hollowing, resin drainage/access openings, and wall thickness.

**Phase 1 Deliverables:**

1. Print-ready STL file (correctly scaled in millimetres).
2. Editable CAD file (STEP preferred, plus native project file if available).
3. Actual model volume in cm³ for resin printing cost estimation.
4. Confirmation of wall thickness and overall dimensions.

**Important: I need the Phase 1 STL file as soon as possible because I must submit it for resin printing. Please prioritise this before starting the detailed internal modelling.**

# Phase 2 – Internal Structure & Components

After the appearance model is completed, I would also like help developing the internal structure based on the second reference image.

This will be used mainly for my project to explain how the product could led function.

Requirements:

- Two matching front/back shell halves that can be opened and closed.
- Simple, minimal snap-fit connections.
- Internal space for one AAA battery (Ø10.5 × 44.5 mm), with appropriate clearance and battery contacts.
- Side-button housing aligned with the exterior button.
- Space for a small control PCB, approximately 20 × 12 × 3 mm as an initial placeholder.
- Space for a small LED and internal wiring for the bottom part.
- Keep the eye area empty, without electronic components.
- Include sufficient space for a potential wireless communication circuit.
- Provide a clear exploded view showing the internal arrangement and assembly.

The internal layout should be physically plausible, with both shell halves fitting together correctly. The reference image is conceptual, so please adjust the internal details where necessary for realistic assembly.

**Phase 2 Deliverables:**

- Editable 3D CAD model with internal components and housing.
- Exploded assembly view.
- Dimensioned internal structure.
- STL/STEP files if applicable.

Phase 2 can follow immediately afterwards, ideally as soon as possible.

Please let me know:

- Whether you can complete the appearance model within 1–3 days.
- Your estimated cost for everything
- Which CAD software you use.
- Whether you have experience preparing hollow models for SLA resin printing.

I have attached two reference images showing the exterior design and proposed internal structure.

Thank you!