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Convert STL Files to Clean CAD / STEP Models I have a number of STL files that need to be converted/rebuilt into proper CAD models. The STL files are the only source files available, so this will require reverse engineering of the STL mesh into clean CAD geometry. Required Deliverables * Clean STEP (.step / .stp) file for each STL supplied * Proper solid CAD geometry — not simply the STL triangles converted into STEP faces * Smooth curved/cylindrical surfaces where applicable * Holes, radii, fillets and other features recreated accurately * Models should be suitable for: * CNC machining * Further CAD modification * Scaling/resizing * Manufacturing Where practical, I would also like the editable native CAD file (SolidWorks, Fusion 360, Inventor, etc.). Important Please do not bid if your process is simply Mesh → BRep → STEP, leaving thousands of triangular faces. I am looking for someone experienced in reverse engineering STL/mesh models into clean CAD solids/surfaces. The original STL geometry and dimensions should be maintained as accurately as possible. When bidding, please tell me: 1. Which CAD software you will use. 2. Whether the final STEP files will contain clean reconstructed surfaces. 3. Whether you can provide the editable/native CAD files as well. 4. Your price per model or price for the complete batch. 5. Estimated turnaround time. I can provide the STL files for review before the final price is agreed.
Project ID: 40663403
7 proposals
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Active 7 days ago
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7 freelancers are bidding on average ₹17,381 INR for this job

With my comprehensive expertise in 3D modeling, particularly in Fusion 360, I am confident in delivering the utmost quality you require for this project. I've proficiently honed my skills in reverse engineering STL/mesh models into clean CAD solids/surfaces, making me the right person to handle your needs. Instead of simply converting files via Mesh → BRep → STEP and leaving thousands of triangular faces, I assure you every model will undergo thorough reconstruction with clean surfaces, preserving the original geometry and dimensions. Moreover, for your convenience and future modifications, I can provide editable/native CAD files in addition to final STEP deliveries. You'll have options to work with files on platforms like SolidWorks, Fusion 360, Inventor, etc. As a detail-oriented professional who values prompt communication and reliability, I guarantee an on-time project delivery without compromising the premium quality of service you deserve.
₹15,444 INR in 1 day
7.5
7.5

As an experienced 3D artist and CAD specialist, I have honed my skills in handling complex projects such as this, involving the delicate conversion of STL meshes into comprehensive CAD models. I understand the limitations of a simple Mesh → BRep → STEP process and assure you that my approach is more intricate. I utilize software like SolidWorks and Fusion 360 to ensure that not only are your clean STEP files produced, but also the original shapes, dimensions, and smooth curved or cylindrical sections maintained – attributes essential for further CNC machining or CAD modification.
₹13,222 INR in 1 day
6.3
6.3

As an experienced and detail-oriented 3D CAD specialist and designer, I understand the unique challenges of converting STL files into clean, editable CAD models. My expertise lies in reverse engineering STL/mesh models into accurate, high-quality CAD solids/surfaces, ensuring meticulous reconstruction of features such as holes, fillets, and radii to maintain the original geometry and dimensions. For your project, I plan to use SolidWorks, a powerful 3D CAD software that offers comprehensive tools for creating flawless STEP files. My process involves reconstructing meshes into smooth surfaces and solids rather than merely converting triangles into faces. Additionally, I can provide you with editable/native CAD files as requested. Regarding pricing and turnaround time, I would be more than happy to discuss these details once I've had the opportunity to review the STL files. By focusing on combining creativity with strategy in my designs, I ensure that every project I undertake aligns perfectly with the brand it represents. Let's collaborate to transform your STL files into solid and scalable CAD models that are ready for CNC machining and further modification.
₹25,000 INR in 5 days
4.8
4.8

Your requirement is clear: you need properly reconstructed CAD geometry, not a mesh-to-BRep conversion disguised as a STEP file. That distinction is important for CNC, manufacturing and future design changes. I can reverse-engineer your STL files into clean, editable CAD models by identifying the underlying design intent and rebuilding features such as cylinders, holes, fillets, radii, planar faces and curved surfaces wherever the mesh supports them. My approach: Reconstruct clean solid/surface geometry from the STL Maintain original dimensions and geometry as accurately as possible Remove unnecessary triangular topology Rebuild manufacturable features for CNC and downstream CAD work Deliver clean STEP/STP files Provide editable native CAD files where required Inspect/test the final geometry for gaps, invalid faces and other issues Software: I can work with professional CAD workflows suitable for reverse engineering and manufacturing. Before quoting the complete batch, I’d prefer to inspect a representative STL so I can assess its complexity and give you an accurate per-model or complete-batch price and turnaround. Send me one STL sample and I can review the reconstruction approach immediately. Best regards, Sumit Kumar
₹14,500 INR in 1 day
5.3
5.3

As an experienced industrial automation expert, I have spent a significant amount of time working with CAD software such as AutoCAD and SOLIDWORKS among others. Having analyzed your project description, I can confidently guarantee clean CAD geometry that goes beyond a mere conversion of STL triangles into STEP faces. Maintaining the integrity of your original STL model while converting it to a proper CAD model is my top priority. I understand that you require smooth curved/cylindrical surfaces, accurate feature recreation, and proper handling of critical aspects such as holes, radii, fillets for CNC machining and manufacturing purposes. I assure you that these requirements will be met. In terms of the CAD software to be used, I am proficient in several popular programs including SolidWorks and Fusion 360 which I can use according to your preferences. My process involves reverse engineering the STL/mesh models into clean CAD solids/surfaces which maintains the original geometry and dimensions. My price per model or for the complete batch would be highly competitive without compromising on quality. The estimated turnaround time for your project would depend on the complexity of each individual model.
₹25,000 INR in 7 days
4.6
4.6

As an acclaimed 3D Design Specialist, I am proficient in using SolidWorks, Fusion 360, and other related CAD/3D tools to deliver production-grade models. My expertise reflects not only in designing new products but also in reverse engineering existing ones. I have successfully transformed intricate STL meshes into clean CAD designs during my career while retaining accurate dimensions and geometry. Your project's specifications resonate with my skillset and I can ensure the output will facilitate CNC machining, CAD modification, and manufacturing without any compromise. Each of your STL files will be transformed into a smooth, high-quality STEP file that doesn't merely represent the triangles of the original mesh but instead accurately reinterprets holes, radii, fillets and all other key features. Furthermore, I understand the importance of editable native CAD files for your workflow and can provide them alongside the STEP files. They will empower you to perform future modifications and scale/resizing with ease. Regarding pricing and turnaround time, rest assured that you're getting top-tier quality within competitive rates. Given the complexity of your project, a more comprehensive understanding will enable me to provide an accurate quote. Consequently, let's initiate a discussion during a Zoom consultation using my architecture-focused visualization skills to offer you detailed insights for informed decision-making!
₹13,500 INR in 3 days
0.0
0.0

Tamluk, India
Member since Dec 8, 2025
$15-25 USD / hour
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