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Project Goal: Create a 3D-printable CAD model (STEP and STL) for a handheld acoustic device, optimized for PolyJet Multi-Material printing. 1. Primary Geometry (The Shell) Form Factor: Contoured "mask" shape covering the mouth and chin. Dimensions: 5.0" W x 4.5" H. Depth (Curvature): 2.0" to create a protective acoustic cavity. Nominal wall thickness of 0.25" (1/4 inch). Finish: All edges must be generously radiused (smooth, rounded) for safety. 2. Functional Feature: Acoustic Black Hole (ABH) Array Feature Type: Precision-machined "dimples" on the exterior. The Math: Each dimple follows a quadratic power-law taper (h(x) = \epsilon x^m, where m \geq 2). Center thickness should be 0.04" (1mm). Aesthetic Pattern: Arrange these circular ABH dimples in a heart-shaped array on the front shell. 3. Integrated Grip (Enhanced Ergonomics) Design: A "C-shaped" grip integrated into the cheek/side contour. The "Security Lip": Along the inner edge of the grip (closest to the center of the shield), include a raised bolster/ridge (approx. 0.25" height). This provides a physical stop for the fingertips to pull against. Texture: Apply a micro-dot or "knurled" texture to the grip surface for maximum friction. Multi-Body Requirement: Model as a separate body for material assignment (Rigid Mauve Shell vs. 70A Shore Grey Grip). 4. Interior Specifications Surface: Interior must be smooth for secondary bonding of a 1/8" acoustic felt liner.
Project ID: 40364652
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12 freelancers are bidding on average $360 USD for this job

I'm Anmol, and I'm a Mechanical Engineer with extensive experience in CAD design and 3D modeling. Over my 9 years of experience, I have undertaken numerous projects similar to your request. I understand the intricate details required in your project, such as the geometric optimization for PolyJet Multi-Material printing, the quadratic power-law taper needed for each dimple, and the importance of smooth surfaces for secondary bonding. Solidworks is my area of expertise and I have vast experience in 3D printing as well, which will ensure that not only will the models be accurate but they can be conveniently transformed into a physical prototype. This also extends to gathering and assigning appropriate materials for different components as needed in your design. My familiarity with Rigid Mauve Shell vs. 70A Shore Grey Grip will allow me to model them precisely in a single file. Additionally,the aesthetic aspects of the design are equally important - designing the "mask" shape considering safety concerns is crucial and my highly trained eye can ensure that every detail is perfectly addressed for maximum user satisfaction. So let's work together to create an incredible handheld acoustic device in line with your vision!
$250 USD in 1 day
8.4
8.4

With a decade-long career in Mechanical Engineering marked by an array of successful projects, I'm eager to bring my expertise and passion for 3D design and printing to your acoustic prototype project. My proficiency in industry-leading CAD tools such as Solidworks, Creo, AutoCAD, and Autodesk Inventor ensures precision and efficiency throughout the design process. Additionally, my Ansys knowledge enables me to carry out CFD and FEA analysis adding a critical dimension to your project. Moreover, I have extensive experience in designing for various manufacturing processes including 3D printing, sheet metal fabrication, and plastic molding - a skillset that seems tailor-made for your needs. I've been involved in multiple enclosure designs across diverse industries that share many similarities with your project's requirements such as optimizing wall thicknesses for strength-to-weight ratio or radiusing edges for safety. In conclusion, employing me for this project would mean entrusting it to a seasoned professional adept at multidisciplinary engineering like myself. My skills coupled with my track record of delivering high-quality tailored solutions will not only ensure the successful creation of your 3D-printable acoustic prototype but will also maximize its performance, aesthetics, and ergonomics.
$400 USD in 5 days
6.3
6.3

With nearly two decades of experience in 2D and 3D design, I am confident in my ability to create the 3D-printable CAD model you are seeking for your acoustic prototype. My extensive work in product modeling and precision engineering aligns perfectly with the complex specifications you've outlined. Whether it's the refined contouring, optimized dimensions, or careful integration for enhanced ergonomics, my expertise covers every aspect you need. One area where I know I can truly excel is in realizing your vision for the acoustic black hole array on the front shell. Adhering to the quadratic power-law taper design and arranging them into a heart-shaped array will require both technical proficiency and a keen aesthetic sensibility—both of which I bring to the table. Further, my detailed-oriented approach ensures that all surfaces are smooth as per interior specifications for secondary bonding. Lastly, selecting me will guarantee timeliness and client satisfaction. As a full-time freelancer, I am dedicated to my clients' projects from start to finish. My offer includes unlimited revisions until we achieve exactly what you envision. I appreciate your time and consideration, and I look forward to working on this exciting project with you.
$500 USD in 12 days
5.7
5.7

Hi there. I am a mechanical design engineer with strong experience in advanced 3D modeling for additive manufacturing, making me a perfect fit to design your acoustic device for PolyJet multi-material printing. I have over 8 years of experience using SolidWorks and Fusion 360 to create 50+ production-ready models for 3D printing, including multi-body assemblies with Shore-rated materials and complex surface geometries. I have designed curved ergonomic enclosures with controlled wall thickness, radiused edges, and print-optimized tolerances for PolyJet and SLA processes. My work includes mathematically driven surface features such as tapered cavities and patterned arrays, ensuring precise implementation of functions like your ABH dimples. I also create clean, well-structured models with separate bodies for material assignment, textured grip surfaces, and export-ready STEP/STL files for direct manufacturing use. ✅ Can you confirm preferred tolerances and minimum feature sizes for your PolyJet printing setup? ✅ Do you have a reference for the heart-shaped ABH pattern layout or should I generate it parametrically? ✅ Will the acoustic felt liner require defined clearance or bonding offsets inside the shell? I’m ready to start immediately and deliver a clean, highly detailed, and print-ready model that meets both functional and aesthetic requirements. All the best,
$500 USD in 3 days
0.0
0.0

Naperville, United States
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