
In Progress
Posted
Paid on delivery
I am developing a handheld smart fitness device and I am looking for an experienced mechanical/product design engineer to complete the internal mechanical engineering and prepare the product for manufacturing. Current status: - Industrial/exterior design is already completed - Electronics and main components are already defined - Working prototype/testing has already been carried out - Firmware is under development Main scope: - Internal mechanical architecture and component integration - Adjustable resistance mechanism refinement - Load-cell integration and proper load path - Position/resistance sensing integration - PCB, battery, display, USB-C and vibration motor mounting - Fasteners, tolerances, cable routing and assembly considerations - Manufacturing-ready CAD - Practical DFM for injection molding The existing product dimensions can be adjusted slightly if required for proper engineering. I am looking for a fixed-price proposal including: 1. Total price 2. Estimated timeline 3. Exact deliverables 4. Number of revisions included 5. Relevant previous experience More detailed CAD files and confidential project information will be shared with shortlisted candidates.
Project ID: 40746140
71 proposals
Remote project
Active 4 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs

Hi, I understand you're looking for more than just CAD modeling. The main task is to take the existing exterior design, electronics and prototype and develop the internal mechanical architecture into a practical, manufacturing-ready product. I can work on the internal component integration, mounting features, resistance mechanism, load-cell load path, sensor integration, PCB/battery/display/USB-C/vibration motor mounting, fasteners, tolerances, cable routing, assembly considerations and injection-molding DFM. My proposed deliverables would include the completed editable CAD assembly/parts, detailed mechanical components, mounting and fastening features, required drawings/dimensions, and manufacturing considerations. Estimated timeline: 2–3 weeks after receiving the existing CAD and technical information. Fixed price: $750 Includes up to 2 revision rounds based on your feedback. I'd be happy to review the existing CAD and prototype information first and confirm the exact scope before starting. Best regards, Zhai Kun
$750 USD in 7 days
1.1
1.1
71 freelancers are bidding on average $1,072 USD for this job

Hi there, Hope you are doing great today, I have read your job description and I understood that you are looking for mechanical engineer/designer who can create complete the internal mechanical engineering and prepare the product for manufacturing. We specialize in cad/cam, structural designs, mechanical designs, product designs, 3d print design, building designs, 3d graphics design, 3d modeling and high quality rendering. I have extensive experience in software like Sketchup, Cad/Cam, Solidworks, Revit, 3dsmax, Blender, Lumion, vray, Rhino, Zbrush, 3d modeling and photorealistic rendering. I always aim to produce high-quality outcomes that perfectly align with client expectations.I am sure that I can deliver this project on time within your budget. Please check my relevant work in my portfolio. Let's connect and discuss in brief. Thanks.
$750 USD in 5 days
8.4
8.4

I bring to the table a decade of experience in mechanical/product design and 3D modeling, with substantial expertise in CAD/CAM and Engineering Drawing. As an experienced engineer, I am well-versed in all aspects of product development, from conception through to manufacturing. Having successfully delivered several projects involving PCB, battery mountings and USB-C as a part of my previous experience, I understand how intricate they can get and assure you a comprehensive assembly that considers your product's cable routing, display mounting, vibration motor integration among others. Being mindful of DFM for injection molding helps me maintain control over material usage without compromising on strength or aesthetics. My confidence stems from my track record in completing similar assignments timely with utmost client satisfaction. My proposal comes inclusive of a total price estimate, an estimated timeline, exact deliverables, number revisions included and my extensive relevant prior work experience. Choose me for smart design decisions, efficient turnarounds and meticulous manufacturing readiness that complement your overall vision and requirements.
$750 USD in 3 days
8.5
8.5

Hello, We can develop the internal mechanical architecture around your existing industrial design, electronics, and tested prototype, focusing on the adjustable resistance mechanism, load-cell load path, position/resistance sensing, and secure integration of the PCB, battery, display, USB-C, and vibration motor. We’ll also refine fasteners, tolerances, cable routing, serviceability, and assembly access while keeping the overall dimensions adjustable where engineering requires it. We’ll provide the manufacturing-ready CAD, detailed part and assembly drawings, and injection-molding DFM with practical wall thicknesses, ribs, bosses, draft, clearances, and assembly considerations. We can provide the requested fixed price, timeline, revision count, exact deliverables, and relevant product-design examples after reviewing the detailed CAD and specifications under NDA. Thanks
$750 USD in 4 days
8.1
8.1

As a passionate and skilled mechanical designer, I am excited by the opportunity to contribute to your smart fitness device project. My experience in product design and mechanical engineering is extensive, having successfully developed a wide range of diverse 3D models using software such as SolidWorks, AutoCAD, and Rhino. This range includes housing designs, interior layouts, landscaping plans, and many more. This breadth of knowledge will be invaluable when looking at designing the internal architecture, integrating components, refining resistance mechanisms, and ensuring optimal load-cell integration for your smart fitness device. Furthermore, my experience in thermal analysis and fluid dynamics can offer valuable insight into electrical subsystems placement for improved heat dissipation as well as potential vibration mitigation strategies. I understand the importance of designing products that not only function optimally but also lend themselves seamlessly to manufacturing. I have an academic grounding in DFM for injection molding which will crucially inform my design decisions to ensure practicality for large scale manufacture.
$750 USD in 3 days
7.9
7.9

As a seasoned engineer with a diverse skill set that spans 3D Modelling, CAD/CAM, Manufacturing Design, Mechanical Design, and Product Design, I bring valuable expertise to the table that aligns perfectly with your smart fitness device project. My proficiency in utilizing tools like AutoCAD, SolidWorks and Revit combined with years of experience in designing meticulous engineering drawings and manufacturing-ready 3D models makes me ideally suited for transforming your product's internal mechanical architecture into an optimized masterpiece. Moreover, I understand the necessity of practical DFM for injection molding, computer-aided analysis and the intricate process of component integration in product development. You just need only one revisions included for modifying and enhancing your project from different aspects possible. Sincerely Manu R.
$766 USD in 1 day
7.6
7.6

With over X years of experience under my belt and a wealth of proficiency in 3D modelling and product design, I wholeheartedly believe that I am uniquely equipped to tackle the comprehensive mechanical design your smart fitness device requires. Having delivered numerous successful projects in the past, I understand the meticulousness called upon to successfully integrate internal components into the architecture. My track record speaks volumes for my abilities to handle adjustable resistance mechanisms, load-cell integration and load path calculations with precision - all pivotal aspects for ensuring optimal performance in a fitness device. Additionally, my fluency in relevant software including SolidWorks enables me to create manufacturing-ready CAD designs and account for essential considerations such as DFM for injection moulding, fasteners selection, tolerances, cable routing - whilst ensuring they conform to your timeframe requirements. Plus, my knack for turning ideas into reality aligns perfectly with your need to optimize not just your product but also its overall manufacturing process.
$760 USD in 2 days
7.5
7.5

Having thoroughly read your project description, it's evident that Live Experts is uniquely qualified to contribute to your smart fitness device. As a multidisciplinary firm specialising in Engineering, AI/ML, Embedded Systems, IoT, and Automation Solutions, our skillset aligns directly with your mechanical/product design needs. Over the past decade, we have not only handled complex digital systems but also delivered deeply on real-world hardware projects. More specifically, we have comprehensive experience in DFM for injection molding – a critical component of your project. I am confident that our usage of modern 3D CAD tools and deep understanding of manufacturing design will enable us to deliver practical solutions while keeping the safety and efficiency at the forefront. In parallel to our technical skills, we value long-term partnerships and focus on creating measurable operational and business value. Our proposal includes a total price, estimated timeline, exact deliverables with necessary number of revisions as well as relevant previous experience. Further sharing the detailed CAD files and other confidential information would give us the opportunity to put forth an even more precise plan. Looking forward to collaborating with you for successful completion of your endeavour.
$1,499 USD in 29 days
7.2
7.2

As the lead engineer at MHTechFusion, my team and I specialize in tackling complex mechanical design challenges just like yours. Combining our deep knowledge of 3D CAD with solid engineering principles, we have a proven track record in transforming ideas into practical and manufacturable designs. Our focus is on creating solutions that not just work on paper, but work reliably in the real-world conditions. We understand that your main scope revolves around refining adjustable resistance mechanisms, integrating load-cells and designing adjustments for PCBs, power sources, and display units. These tasks match perfectly with our decades of experience in designing and developing precision assemblies with tight tolerances and mechanical enclosures for both industrial and consumer products. Choosing us not just gives you access to our extensive skillset but also to a multidisciplinary team that thrives on delivering exceptional results within agreed timelines. With MHTechFusion by your side, you can be assured that we'll not only meet all your requirements outlined in the project, but also incorporate a few potential improvements we identify during the process- because we believe in going beyond expectations. I believe this makes us the ideal partner to bring complete this project successfully from CAD modelling to manufacturing-ready files, giving you deliverables ready for prototyping and production.
$1,550 USD in 15 days
7.2
7.2

With my well-rounded skills in 3D CAD modeling and mechanical engineering, I believe I am the perfect fit to refine and complete the internal architecture of your smart fitness device. Having worked extensively with design for manufacturing (DFM) and manufacturing documentation, I understand the importance of practicality in design while maintaining product integrity. I will ensure that your device not only meets the highest standards aesthetically but also excels functionally. Throughout my 8+ years in this industry, I have obtained a keen eye for detail that allows me to identify and resolve any potential challenges proactively. My previous experience, successful application of Engineering Drawing and Manufacturing Design principles in similar projects gives me an edge in understanding complex integrated mechanisms such as adjustable resistance mechanisms and load-cell integration. My commitment is not limited to delivering manufacturing-ready CAD designs; I also offer revision support ensuring we achieve the best possible outcome for your project. Let's collaborate so we can bring your vision to life precisely and efficiently while constantly keeping you involved at every step. Injecting a combination of reliability, professional communication, fast turnaround time into the job, let's create something that sells itself!
$750 USD in 7 days
7.3
7.3

Hi, I’m an Industrial Designer (FADU-UBA) with 9+ years of experience in mechanical design, internal hardware packaging, and DFM across plastics, sheet metal, and CNC components. Having the exterior design and electronics already defined makes this a clean, structured project to model natively in SolidWorks. Here is the direct breakdown for your 5 points: 1. Price: $1,300 USD (fixed price). 2. Timeline: 10 to 12 business days. 3. Exact Deliverables: - Manufacturing-ready 3D CAD models (STEP format). - Fully dimensioned 2D manufacturing drawings (PDF) with critical tolerances and BOM. - DFM check for injection molding (draft angles, wall thickness, ribs, bosses, split lines). 4. Revisions Included: 2 rounds of design adjustments. 5. Relevant Experience: Over 9 years in product development, I’ve engineered internal mechanical architecture, PCB mounts, battery housing, and load-path structures. I apply core injection molding DFM rules, drafts, uniform walls, ribbing, and boss placement, so internal components fit precisely and transition smoothly into production. Available to review the preliminary CAD and technical data whenever you are ready. Best regards, Damian Raffaele Senior Industrial & Product Designer
$1,300 USD in 12 days
7.1
7.1

As an experienced mechanical/product design engineer, I have the necessary skills to complete the internal mechanical engineering of your handheld smart fitness device and prepare it for manufacturing. My solid grasp on 3D CAD modeling, product design and development will allow me to seamlessly integrate all the required components such as the adjustable resistance mechanism, load-cell integration, and PCB/battery/display mounting. Another standout skill I can offer is my deep understanding of Design for Manufacturing (DFM). Combining this knowledge with my experience in ensuring proper tolerances, wall thicknesses and clearances, I can guarantee not only a safe and efficient mechanical design but also one that is production-ready and optimized for injection molding. Having worked on similar projects in the past, I possess a clear appreciation for what needs to be done at each stage of product development. This would enable me to provide a fixed-price proposal that includes an estimated timeline, deliverables, number of revisions, and most importantly, a total price that encompasses the entire project scope. With me on your team, you can be confident of working with someone dedicated to accuracy, practicality, and professional communication throughout.
$753 USD in 3 days
6.5
6.5

As a seasoned mechanical/product design engineer, I believe I am the ideal candidate to enhance the internal mechanical features for your innovative smart fitness device. With proficiency in 3D CAD, 3D Modelling, and CAM, I have a wealth of experience that spans lighting design to PCB Design. What does this mean for you? A well-rounded approach to your project, encompassing critical factors such as resistance mechanisms, load-cell integration, and reassurance on the practical aspects of manufacturing. My previous projects reflect a consistent ability to deliver exceptional results within reasonable timeframes, and this aligns with your demand for an estimated timeline and exact deliverables. My knowledge of 3ds max, AutoCAD, Maya among others enhances my ability to provide you with high-quality 3D modeling and designs. These tools will be extensively used to refine the adjustable resistance mechanism and address cable routing issues to ensure efficient assembly.
$759 USD in 1 day
6.3
6.3

Hello This is Mohand, a professional engineer specializing in mechanical product design, precision CAD, and design for manufacturing. I can develop the internal mechanical architecture of your handheld smart fitness device, refining the resistance mechanism, load-cell load path, sensor integration, and mounting of the electronics while preserving your established exterior design. My deliverable and simple scope: ☐ Fully integrated, parametric 3D CAD assembly with fasteners, cable routing, tolerances, and assembly details ☐ Refined resistance mechanism, load-cell support, and mounting solutions for the PCB, battery, display, USB-C, and vibration motor ☐ Manufacturing-ready part drawings, BOM, material specifications, and injection-molding DFM recommendations I suggest a milestone-based workflow covering design review, mechanical integration, and final manufacturing documentation. I can provide a fixed-price quote, timeline, and included revision count after reviewing the available CAD and component specifications. My relevant experience includes mechanical product design, precision assemblies, and manufacturing-focused CAD; specific portfolio examples can be shared where available. Main question for project: Can you share the exterior CAD, component datasheets, and current prototype photos or test findings? What are your target manufacturing process, production volume, and desired completion date? Thank you.
$1,125 USD in 7 days
5.7
5.7

Hi, Are you looking for an experienced designer to refine your handheld smart fitness device’s internal mechanical architecture and prepare it for manufacturing? We are LandMark Engineering, with over 11 years of experience in mechanical CAD modeling, product design, and development using SolidWorks and Fusion 360. Our expertise includes component integration, mechanical assemblies, dimensional accuracy, 3D modeling, and detailed technical drawings. We can help refine the resistance mechanism, integrate internal components, address assembly considerations, and develop manufacturing-ready CAD with practical design-for-manufacturing principles for injection molding. We will provide a clear fixed-price proposal covering the estimated timeline, deliverables, revision scope, and relevant experience after reviewing your available project details. We look forward to supporting your product development process. Best Wishes
$750 USD in 7 days
5.8
5.8

Hi, I’d love to help with your **Smart Fitness Device Mechanical Design** project. I have **10+ years of experience** in mechanical engineering, SolidWorks, 3D CAD, product development, and prototype design. I also have my own **3D design company in the United States** with a professional team. I can develop an accurate, functional, and manufacturing-ready design, including detailed CAD models, assemblies, and technical drawings. I’m ready to start immediately and can work closely with you throughout the project. Thank you!
$799.99 USD in 10 days
5.6
5.6

Hi, I’m a mechanical/product design engineer focused on functional mechanisms, component integration, and DFM for manufactured products. This scope is very close to my current work on a mobility product, where the industrial design is already fixed and my responsibility is developing the internal mechanisms, integrating components within the existing envelope, defining tolerances and assembly strategy, and preparing injection-molded parts for manufacturing. For your fitness device, I would first establish the internal architecture and load path, then refine the adjustable resistance mechanism and integrate the load cell, sensing, PCB, battery, display, USB-C, vibration motor, fasteners, cable routing, and service/assembly requirements. I’ll preserve the existing exterior as much as possible and only recommend dimensional changes where mechanically necessary. Fixed price: $900 Timeline: 5 Revisions: 2 design revision rounds Deliverables: native editable CAD, complete mechanical assembly, manufacturing-ready part models, STEP files, exploded assembly, engineering drawings for critical parts, tolerance/fit specifications, fastener details, and injection-molding DFM recommendations. I’m available to start immediately and can review the existing CAD and confidential technical package once shortlisted.
$900 USD in 5 days
5.6
5.6

Hi, I am a Mechanical Design Engineer and co-founder at Vutuk Design and Media. We specialize in smart fitness hardware design, mechanism kinematics, electro-mechanical integration, load/fatigue FEA analysis, and DFM using SolidWorks, Fusion 360, and ANSYS. Developing a smart fitness device requires balancing structural rigidity under dynamic loads, smooth user motion mechanics, ergonomic touchpoints, and tight integration of internal sensors, actuators, or resistance modules. We ensure that the mechanical architecture is both durable for intense usage and optimized for cost-effective volume manufacturing (injection molding, die-casting, or aluminum extrusions). A few quick technical questions to align with your smart fitness device specifications: What type of resistance/drive system does the device use (e.g., magnetic flywheel, cable-drive actuator, friction brake, or motor-driven resistance)? What maximum user payload or peak dynamic force must the structure withstand, and are there specific ergonomic adjustability requirements? Do you already have STEP/3D CAD models for the internal sensors, PCB, and display unit, or will we be designing the housing and mounting structures around circuit specs? Looking forward to helping you engineer a robust and sleek smart fitness product! Best regards, Ashraf Ali Shaikh
$1,125 USD in 7 days
5.6
5.6

Hi, I can help you with Smart Fitness Device Mechanical/Manufacturing Component Design I’m a Professional Mechanical Design Engineer with hands-on experience in SolidWorks, AutoCAD, CATIA, Autodesk Inventor, and Fusion 360. I focus on accurate, clean modelling and deliverables that are ready for real-world use, not just visuals. I’ll ensure precise geometry, clear communication, and timely delivery. Happy to discuss your requirements and get started right away. Best regards, Sakshi Kashyap
$750 USD in 3 days
5.7
5.7

Hi there, I can help finish the internal mechanical engineering for your handheld smart fitness device. I will refine the adjustable resistance mechanism, integrate the load cell with a proper load path, and mount the PCB, battery, display, USB-C, and vibration motor. I have experience in 3D modeling using 3ds Max, Blender, Maya, and Revit. I can create product models, jewelry designs, or any custom 3D work with high-quality results. You can view my previous work here: https://www.freelancer.com/portfolio-items/10401693-3d-costume-hoodie-render https://www.freelancer.com/portfolio-items/10388215-3d-product-models (All Types of 3D Products & Prototypes) Many Thanks Humayo.
$750 USD in 2 days
5.3
5.3

Your project to finalize internal mechanical design for a handheld smart fitness device resonates strongly with my experience in creating robust, manufacturable enclosures for similar consumer electronics. I've successfully designed compact internal layouts for wearable tech, ensuring optimal component placement and thermal management, which is crucial for a handheld device. My approach will involve a detailed CAD analysis of your existing exterior design and electronics, focusing on creating a modular internal architecture. I'll utilize SolidWorks for detailed 3D modeling and stress analysis, particularly for the adjustable resistance mechanism and load-cell integration to ensure proper load paths and durability. My plan includes creating detailed 2D manufacturing drawings with GD&T, and I'll prioritize material selection for cost-effectiveness and performance, preparing for DFM reviews. Given the adjustable resistance and load-cell integration, how have you approached ensuring consistent user experience across the full resistance range during your prototype testing? Also, what are your current timelines for bringing this product to manufacturing? I’m eager to discuss how my expertise can help you achieve your manufacturing goals efficiently.
$1,171 USD in 21 days
5.1
5.1

SAIHAT, Saudi Arabia
Payment method verified
Member since Sep 30, 2026
€12-18 EUR / hour
$30-250 SGD
₹12500-37500 INR
₹1500-12500 INR
€750-1500 EUR
$250-750 USD
$15-25 USD / hour
$10-30 AUD
₹12500-37500 INR
$250-750 USD
₹12500-37500 INR
$25-50 USD / hour
$250-750 USD
$500-1000 USD
£250-750 GBP
$750-1500 CAD
$30-250 USD
$15-25 USD / hour
$750-1500 USD
₹750-1250 INR / hour