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I am a product developer seeking an experienced Mechanical CAD Engineer / Product Design Engineer to review and complete the existing CAD files for a patented consumer product called Lock-It. The product has already been designed, and CAD files have been created. I am not looking to redesign the product from scratch. I am currently communicating with manufacturers and have been asked to provide additional manufacturing documentation, including 2D technical drawings in PDF format and step-by-step assembly instructions with images. I am looking for someone who can review my existing CAD files, identify anything that is missing or needs correction, and prepare a professional manufacturer-ready engineering package that can be submitted for quotation and eventual production. Scope of Work The selected engineer should be able to assist with: ● Review of my existing CAD/STEP files for completeness and manufacturability ● Correcting or updating existing CAD files where necessary ● Preparing manufacturer-ready STEP files for the individual components ● Creating professional 2D dimensioned technical drawings in PDF format ● Adding appropriate dimensions, tolerances, materials, finishes, and manufacturing notes ● Creating an exploded assembly drawing ● Preparing or reviewing the Bill of Materials (BOM) ● Creating step-by-step assembly instructions with images/illustrations ● Reviewing the design from a DFM (Design for Manufacturing) perspective ● Identifying any potential manufacturing issues before the files are submitted for production ● Preparing an organized final engineering package that I can provide to Xometry and other manufacturers for accurate quotations The product consists of a small molded plastic enclosure measuring approximately 2" L × 1.5" W × 0.5" T, a plastic-coated braided-steel cable approximately 20 inches in length, and a locking mechanism. Final dimensions, component specifications, and other technical details should be verified against the existing CAD files. Ideal Candidate I am specifically looking for someone with experience in: ● Mechanical engineering or mechanical CAD design ● Consumer product development ● Injection-molded plastic parts ● DFM / Design for Manufacturing ● 2D manufacturing drawings ● GD&T and tolerancing where appropriate ● Assembly drawings and assembly documentation ● Preparing CAD packages for manufacturers Experience working with Xometry, Protolabs, injection molding companies, or contract manufacturers would be a plus. Important I already have existing CAD files and product renderings. This project is primarily about reviewing, correcting, documenting, and preparing the existing design for manufacturing, rather than creating an entirely new product. Because this is a patented product moving toward commercialization, confidentiality and professional handling of the design files are important. When applying, please provide: 1. Examples of similar consumer or mechanical products you have prepared for manufacturing. 2. Examples of your 2D technical/manufacturing drawings. 3. Your experience with injection-molded plastic products and DFM. 4. Whether you can create assembly drawings and step-by-step assembly instructions. 5. Your estimated cost and turnaround time after reviewing the existing files. 6. Whether you would be comfortable reviewing the existing files first and identifying exactly what is needed before beginning the full project. My goal is to establish a relationship with a reliable CAD/mechanical engineer who may also be available for future manufacturing revisions as the Lock-It product moves toward production. Thank you, and I look forward to reviewing your qualifications.
Project ID: 40655380
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64 freelancers are bidding on average $637 USD for this job

Hi. Please share files via chat and lets talk on details, I need to see product, thanks. https://www.freelancer.com/u/furkancakir # SolidWorks # Visualize # Composer # AutoCAD # 3dsMAX # ANSYS # LS-Dyna # Abaqus # Fusion 360 # Inventor # FreeCAD # Blender # Q-Blade # Altair EDEM # Rocky DEM # MeshLab # MS Excel # MS Word # MS Office # VBA for SolidWorks # VBA for MS Excel # C++ # Java # MatLab 600+ Character Per Minute.
$5,000 USD in 15 days
7.8
7.8

As an accomplished and multi-skilled mechanical engineer, I'm well-versed with all aspects of product development and engineering, making me a suitable candidate for your Lock-It CAD review project. I offer extensive experience in creating 2D models, technical manufacturing drawings, GD&T practices, and assembly documentation. I also specialize in DFM and have a solid understanding of injection-molded plastic products, key for your Lock-It which constitutes a small plastic enclosure. My knowledge with Xometry and design for manufacturing will be an added advantage. Over the years, I have been consistently successful in preparing existing designs - like yours - into polished manufacturer-ready engineering packages. In doing so, I meticulously verify all dimensions, materials, finishes, etc to avoid any glitches during production. The confidential handling of design files is paramount to this project's success, and you can trust me with that based on my ethical track record.
$520 USD in 3 days
7.4
7.4

Dear Sir, As a mechanical engineer, I am a SolidWorks/Fusion360/AutoCAD expert and product designer. I’m excited to submit my proposal for your project. I have experience converting product concepts, sketches, and reference designs into detailed manufacturing drawings and production-ready CAD models. Here is my service; ⭐Review of your existing CAD/STEP files for completeness and manufacturability ⭐ Correcting or updating existing CAD files where necessary ⭐Preparing manufacturer-ready STEP files for the individual components ⭐Creating professional 2D dimensioned technical drawings in PDF format ⭐Adding appropriate dimensions, tolerances, materials, finishes, and manufacturing notes ⭐Creating an exploded assembly drawing ⭐ Preparing or reviewing the Bill of Materials (BOM) ⭐Creating step-by-step assembly instructions with images/illustrations ⭐ Reviewing the design from a DFM (Design for Manufacturing) perspective ⭐ Identifying any potential manufacturing issues before the files are submitted for production I would be glad to discuss your project in more detail and answer any questions you may have. I'm ready to get started immediately. Thank you for considering my proposal. I look forward to working with you. Best regards Ivy
$500 USD in 3 days
6.8
6.8

Hello, I am a Mechanical Design Engineer with extensive experience developing products from concept through manufacturing. My background includes robotics, automation systems, lifting mechanisms, consumer products, machine design, structural analysis, and prototype development. Previous projects include robotic arms, delivery robots, automated machinery, lifting systems, drone mechanisms, wearable devices, vehicle accessories, medical devices, and custom electromechanical products. I can support your project with: ✓ Concept development and mechanism design ✓ 3D CAD modeling (SolidWorks / Fusion 360) ✓ Manufacturing drawings and documentation ✓ Design for Manufacturing (DFM) ✓ FEA simulation and validation (ANSYS / COMSOL) ✓ Prototype preparation for CNC machining and 3D printing I also operate with manufacturing support capabilities for CNC machining and 3D printing, allowing designs to be developed with practical production constraints in mind. Please send the project details and I can review feasibility, expected challenges, and the best development approach before we begin. Portfolio and reviews: http://www.freelancer.com/u/ENG1mga Best regards, Mahmoud
$500 USD in 2 days
6.8
6.8

Hello: My name is Gustavo Colin. I have over 25 years of experience using 3D CAD software and over 30 years in industrial mechanical design for various sectors, including: Hydroelectric, Thermoelectric, Ceramic, Citrus, Oil, Paper, Sugar, and others. I can design and model complex parts and assemblies (over 1000 parts) and provide you with 3D files in generic formats such as STEP, STL, OBJ, and IGS, as well as technical drawing files of individual parts with all dimensions, annotations, and tolerances, and assembly files, exploded views with bills of materials in DWG, PDF, and JPG formats suitable for manufacturing. I can perform dynamic simulations to validate the kinematics of moving parts, and I can also generate photorealistic rendered images for visualizing the finished product. You can see examples of my work in various sectors in my portfolio. I'll be able to adjust the rate once I have a better understanding of the project. Regards.
$600 USD in 10 days
6.7
6.7

With my deep expertise in mechanical engineering and CAD design, particularly using tools like SolidWorks and AutoCAD, I assure you a top-notch delivery of this project for your Lock-It device. My core understanding of Design for Manufacturing (DFM) makes me reputable in assessing the manufacturability of your products as well as scrutinizing existing CAD files for potential manufacturing issues. Creating professional 2D technical drawings, step-by-step assembly instructions and incorporation of important dimensions, tolerances, materials while producing a manufacturer-ready package are all within my strong purview.
$555 USD in 1 day
7.0
7.0

Hello, I have extensive experience reviewing existing consumer-product CAD, correcting mechanical details, and preparing manufacturer-ready packages for injection-molded plastic components, cable assemblies, locking mechanisms, and small mechanical products. I’ve produced dimensioned manufacturing drawings, GD&T and tolerance callouts, exploded assemblies, BOMs, and illustrated assembly documentation for manufacturers and prototyping suppliers. I’ll first audit your existing CAD against the intended design, checking interfaces, wall thicknesses, draft, clearances, fasteners, materials, finishes, and DFM concerns before making any necessary corrections. I’ll then prepare individual STEP files, professional 2D PDF drawings, an exploded assembly view, BOM, and clear step-by-step assembly instructions suitable for Xometry or other manufacturing partners. Could you provide the existing CAD/STEP files and renderings for an initial engineering review? Also, do you already have specified materials, cable construction, and locking components, or should these be verified during the DFM review? Regards
$500 USD in 5 days
5.6
5.6

**Mechanical CAD Engineer / Product Design Engineer – Lock-It Manufacturing Package** Hello, I’m Thomas, a Professional Engineer and Mechanical/Product Designer experienced in consumer-product development, injection-molded components, DFM, CAD modeling, and manufacturing documentation. **Scope of Work:** 1. Review the existing CAD/STEP files and product renderings to identify missing information, dimensional issues, assembly concerns, and manufacturing risks. 2. Correct or update the existing models as required and prepare clean, manufacturer-ready STEP files for individual components. 3. Create professional **2D manufacturing drawings** with dimensions, tolerances/GD&T where appropriate, material, finish, and manufacturing notes. 4. Develop an exploded assembly drawing, BOM, and clear **step-by-step assembly instructions with illustrations**. I understand that the existing design should be **reviewed and completed rather than redesigned from scratch**. I’m also comfortable beginning with a file audit and providing a clear list of required corrections/documentation before proceeding with the complete package. Please send the existing STEP/CAD files, current drawings/renderings, and any manufacturer feedback you have received. After reviewing them, I can provide a defined scope, estimated turnaround, and fixed or milestone-based cost. Best Regards, Thomas
$600 USD in 5 days
5.7
5.7

As the head of MAA CAD, an engineering company that prides itself on designing consumer products with a 'Design for Manufacturing' approach, I am eager to assist you in updating, completing and preparing your existing CAD files for the Lock-It product. My team and I have a reputation for our meticulous attention to detail and ability to optimize designs while minimizing assembly complexities, reducing material costs and maximizing manufacturing capabilities - which is exactly what you need now! With robust experience in all aspects of mechanical engineering and consumer product development, my proficiency in Solidworks, AutoCAD and my knowledge of GD&T are well aligned with your requirements. In particular, our familiarity with injection-molded plastic part design meshes really well with your needs. I have profound expertise in reviewing and modifying existing CAD files for both manufacturability accuracy and producing assembly instructions.
$600 USD in 1 day
5.7
5.7

Hello, we are Vutuk Design and Media. Backed by a full-service mechanical design engineering, advanced structural FEA/CFD simulation, in-house rapid 3D printing laboratory, and digital media studio led by a principal mechanical design engineer with 15 years of experience, our agency is fully equipped to execute your Mechanical CAD Engineer Review project. We bridge technical CAD auditing with cinema-grade technical visualization assets. To help us align our engineering and media pipeline with your project timeline, we have a few brief questions: Would you like our studio to print physical 3D test models in our laboratory to visually verify corrected assembly stack-ups before manufacturing sign-off? Do you require photorealistic product renders or 3D animated assembly sequence walkthroughs alongside the audited CAD and 2D drawing deliverables? What is your preferred schedule for reviewing initial design audit markups before our engineering team advances to final drawing revisions and render generation? We invite you to visit our company profile and extensive portfolio page to explore our deep capabilities in CAD auditing, rapid physical prototyping, FEA structural analysis, and industrial visual assets. We look forward to partnering with your team.
$600 USD in 7 days
5.5
5.5

I am here to bring your product to life. I'm a mechanical engineer with 11 years of experience designing industrial product, furniture product, plastic product and machine, automatic system Experience type: 3D, 2D models, Render, Sheet Metals, Machines and Devices, Industrial Products, Plastic Molds, Plastic Parts Software program: Autodesk Inventor, Solidworks, Autocad , NX-Siemens I am always glad to cooperate, I guarantee quick lead-time, information of the project is always confidential . Your project will be developed with speed and high quality, as well as all the jobs already accomplished. Please send me a message
$600 USD in 7 days
5.8
5.8

Hi, there I have read your project details carefully titled as **"Mechanical CAD Engineer Needed to Review & Complete Existing Product for Manufacturing."** I have strong experience in **SolidWorks mechanical CAD, consumer product design, injection-molded plastic parts, DFM, GD&T, tolerancing and manufacturing documentation**. I can review your existing CAD/STEP files, identify missing or incorrect details, make necessary corrections and prepare clean manufacturer-ready files without unnecessarily redesigning the existing product. I can create **individual STEP files, fully dimensioned 2D manufacturing drawings, materials, finishes, tolerances, manufacturing notes, exploded assembly drawings and BOM documentation**. I can also prepare clear **step-by-step assembly instructions with images/illustrations**, making the package practical for manufacturers and assembly teams. For the molded plastic enclosure and locking mechanism, I will carefully review **wall thickness, draft, parting, clearances, interfaces and other DFM considerations** before production. I am also comfortable reviewing the complete package first and providing a clear list of what needs to be corrected or added before starting the full manufacturing documentation. Please send me the existing CAD/STEP files and I can review the product and discuss the required engineering package, cost and turnaround time. Thanks. Regards.
$600 USD in 7 days
5.2
5.2

Hello ! I’m an experienced Mechanical CAD/Product Design Engineer specializing in SolidWorks, DFM, and preparing designs for real-world manufacturing. I have realized numerous mechanical and consumer product projects where I reviewed existing CAD, improved the design for manufacturability, and prepared complete engineering packages including native CAD files, manufacturing-ready STEP files, fully dimensioned 2D drawings, BOMs, exploded views, and step-by-step assembly instructions with clear illustrations. I have strong experience with tolerancing, material and finish specifications, and identifying potential manufacturing issues before production, so I can thoroughly review your existing Lock-It files and determine exactly what needs to be corrected or added rather than unnecessarily redesigning the product. My approach is to first audit the existing design from both a CAD and DFM perspective, then deliver a clean, organized package that manufacturers can use confidently for quotation and production. I’m also comfortable working under confidentiality requirements and supporting future manufacturing revisions as the product moves toward commercialization. I’d be happy to review the existing files first and provide a clear assessment of the required work before we proceed.
$500 USD in 7 days
5.0
5.0

Hello, I am Muhammad Javed, a mechanical engineer with more than 10 years of experience in mechanical CAD design, consumer products, injection-molded plastics, and DFM. I have thoroughly studied your requirements and understand that Lock-It is already designed, so the focus is on reviewing, correcting, documenting, and preparing the existing CAD files for manufacturing rather than redesigning the product. I can review your CAD/STEP files for completeness and manufacturability, identify missing or incorrect details, and make the required updates. I will prepare manufacturer-ready STEP files, professional 2D dimensioned drawings with suitable tolerances, materials, finishes and manufacturing notes, plus an exploded assembly drawing and BOM. I can also create clear step-by-step assembly instructions with CAD-based images and perform a DFM review of the molded plastic enclosure, locking mechanism, cable integration, and assembly process. The final engineering package will be organized for manufacturers such as Xometry and suitable for quotation and production. I am comfortable working under NDA and understand the confidentiality requirements of a patented product. I can first review your existing files, identify exactly what is required, and then provide a clear scope, cost, and turnaround time. I am also available for future manufacturing revisions as the product moves toward production.
$600 USD in 7 days
4.9
4.9

Hi, I’ve understood that Lock-It is already designed, so the priority is manufacturing readiness, not redesign. I can review the existing CAD/STEP files first, identify missing or incorrect details, then prepare the 2D manufacturing drawings, tolerances, BOM, individual STEP files, exploded assembly and illustrated assembly instructions. I’ll also check the molded plastic enclosure from a DFM perspective and flag production issues before quotation. Portfolio: * CAD / Revit Redraw Project * Canada Building Permit Set Happy to start with the initial CAD review. Best, Manh Tung
$777 USD in 7 days
4.4
4.4

With 5+ years of experience in Mechanical CAD, product development, and DFM, I can review and complete your existing Lock-It CAD package and prepare a professional, manufacturer-ready engineering documentation set without unnecessarily redesigning the product. My approach would begin with a detailed review of your existing CAD/STEP files, renderings, and BOM to identify missing information, manufacturability concerns, tolerance issues, and any corrections required before production. I can then update the files and organize the complete package for quotation and manufacturing. I can provide: Review and correction of existing CAD/STEP files Individual manufacturer-ready STEP files Professional 2D dimensioned drawings in PDF Materials, finishes, tolerances, manufacturing notes, and GD&T where appropriate Injection-molding DFM review for the plastic enclosure, including wall thickness, draft, ribs, snap features, and tooling considerations Exploded assembly drawings BOM preparation/review Step-by-step assembly instructions with clear images/illustrations Review of the braided steel cable and locking mechanism interfaces Identification of potential manufacturing or assembly issues Organized final engineering package suitable for manufacturer quotation I am comfortable reviewing the existing files first and providing a clear assessment of exactly what needs to be corrected or documented before proceeding with the complete package.
$500 USD in 4 days
4.2
4.2

Hi there ! I have all aspects of this project covered from reviewing CAD files to carrying out DFM. With my experience in mechanical and product design, I have honed a meticulous eye for detail, which is crucial for your project's success. My expertise in manufacturing technologies such as injection molding, sheet metal, CNC machining, and 3D printing aligns seamlessly with your needs. What sets me apart is not just my ability to interpret drawings, but my capacity for finesse and optimization. I understand that the current state of your product calls for enhancements rather than an overhaul. As a skilled designer with a penchant for DFM, I'm capable of spotting any potential manufacturing issues that could dampen the production process once your files are submitted. Confidentiality is key to you and your patented product, and my professional approach ensures the utmost respect and adherence to your needs. My turnaround time is swift and estimated costs are always competitive. Besides delivering result-oriented CAD designs that manufacturers will appreciate, my goal is also to establish a long-term association with you as your product transitions into mass production. Let's start this engrossing journey to make Lock-It everything you've envisioned and more! Thanks & regards Gaurav Sharma....
$500 USD in 2 days
3.8
3.8

With my prolific 14-year experience in the design field, I absolutely understand your needs to not just complete, but also document existing CAD files for your Lock-It product. My expertise in SolidWorks and AutoCAD aligns precisely with your requirements for 2D dimensioned technical drawings, assembly drawing, and creating a final engineering package to confidently share with manufacturers. Working primarily on CATIA, SolidWorks, and AutoCAD, my experience is broadened across several areas of mechanical design including injection molding. I am well-versed with DFM strategies which will be instrumental in identifying and addressing any manufacturing issues and optimizing the Lock-It product from a production perspective. I fully appreciate the confidentiality aspect of your patented product and can assure you of my utmost professionalism and discretion when working with your design files. Moreover, I believe this project is an opportunity to establish a long-term professional relationship. I'm eager to kick-start the review process at once - accurately outlining what needs to be done, providing an accurate cost estimation, and delivering within a turnaround time fully consistent with the complexity of your existing CAD files. Your satisfaction is paramount to me!
$500 USD in 1 day
2.8
2.8

Hi there, I am AniWizard, a mechanical product design engineer experienced in DFM, injection-molded enclosures, and preparing complete, production-ready engineering packages for suppliers like Xometry and Protolabs. How I’ll Prepare Lock-It for Production: CAD Review & DFM: Audit existing STEP files for wall thickness, draft angles, and moldability. 2D Drawings & GD&T: Detailed 2D technical PDFs with tolerances, material specs, and surface finishes. Documentation: Assembly drawings, step-by-step illustrated instructions, and a full BOM. Turnaround: 3–5 days after NDA & initial file review. Ready to sign an NDA, review your files, and confirm the exact scope! Best regards, AniWizard
$500 USD in 1 day
2.8
2.8

I can precisely review, correct, and complete your existing Lock-It CAD design in SolidWorks, delivering manufacturer-ready STEP files, detailed 2D drawings, BOM, exploded assembly documentation, and DFM recommendations to a professional engineering standard. With strong expertise in SolidWorks, mechanical product design, injection-molded components, GD&T, manufacturing drawings, and assembly documentation, I am confident I can deliver this project to a standard that exceeds your expectations and support future production revisions as well.
$600 USD in 7 days
2.4
2.4

Lansing, United States
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Member since Aug 18, 2026
$250 USD
$250-750 CAD
₹1500-12500 INR
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$15-25 USD / hour
$3000-5000 USD
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$30-250 USD
$30-250 USD
min $50 USD / hour
₹75000-150000 INR
$10-30 USD
₹600-1500 INR
₹600-1500 INR
$15-25 USD / hour
₹1000 INR
$30-250 USD
₹600-1500 INR