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Chintan P.

Mechanical engineer: product design, 3D rendering, Revit BIM and Python CAD automation

Ahmedabad, India

Global rank:

34,517 / 149,890

Skill pts: 5

CAD Design

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About

I am a mechanical engineer with 3+ years of hands-on CAD and product design work, combined with a strong software background. That mix lets me cover the full journey: designing the product, visualising it, documenting it, and automating the repetitive CAD work around it.

WHAT I DO
- Product design and 3D CAD in Fusion 360 and SolidWorks: enclosures, housings, consumer products and functional parts, designed for 3D printing, injection moulding and CNC
- Photorealistic 3D rendering and visualisation in Blender: product shots, jewellery and accessories, lifestyle scenes and marketing visuals for websites, listings and investor decks
- Revit BIM modelling: CAD to BIM conversion, architectural and MEP models, and drawing sets
- CAD automation with Python: scripted, parametric CAD (OpenCASCADE), batch export and file conversion, model checks and custom tools that save hours of manual work
- Reverse engineering from photos, sketches and drawings into clean, editable models
- 3D printing preparation and prototyping on in-house FDM printers

HOW I WORK
I build models parametrically, so changes are quick and variants are easy. I check designs for manufacturability before delivery, and I tell you early if something will be expensive or difficult to produce. Where a task repeats, I automate it, so you pay for engineering rather than clicking.

RECENT WORK
- Two-part wall-mounted electronics enclosure (ABS body + polycarbonate cover with vent slots), built with scripted parametric CAD and delivered as clean STEP files
- Rugged hinged protective case with toggle latch, recessed handle and stacking interlock, designed print-ready for FDM
- Photoreal product visualisation for decorative hardware and jewellery collections
- Reverse engineering of complex shapes from reference photos into dimensioned CAD

WHAT YOU RECEIVE
Native CAD files, STEP, STL/3MF, DWG/DXF and PDF drawings, Revit files, high-resolution renders, and scripts with simple instructions where automation is part of the job.

EDUCATION
Bachelor of Engineering, Mechanical Engineering

Languages: English, Hindi, Gujarati

Experience

Founder & Technical Lead (Product Design, CAD & Automation) BytezTech Private Limited · Self-employed Apr 2026 – Present 6 mos India - Product design and 3D CAD for international clients in Fusion 360 and SolidWorks: enclosures, cases, consumer products and functional parts
- Scripted parametric CAD with Python and OpenCASCADE for repeatable, error-free models and fast variants
- Photorealistic rendering and product visualisation in Blender for marketing and investor material
- Revit BIM modelling and CAD to BIM conversion for architectural projects
- DFM checks and print-ready file preparation, with in-house FDM prototyping (Bambu Lab)
- Clean delivery packages: STEP, STL/3MF, DWG/DXF, PDF drawings and renders

Education

GTU BE, Mechacnial Engineering 2018 – 2021

Other experience

Revit BIM Modelling & CAD to BIM Conversion I convert 2D CAD drawings, PDFs, and sketches into structured Revit BIM models, and build models directly from design briefs. Work covers architectural modelling (walls, floors, roofs, doors, windows, stairs), families, views, schedules, and drawing sheets set up to clear standards.

A good BIM model is more than geometry. I set up levels, grids, worksets, and naming properly from the start, so the model stays usable for coordination, quantity take-off and later changes. Where a project repeats the same tasks, I add automation to keep the model consistent and save time.

Deliverables include the Revit file (RVT), exported DWG and PDF drawing sets, IFC for coordination, and schedules in Excel. I can start with a small pilot area, so you can check quality before the full project.
CAD Automation & Scripted Parametric Modelling (Python) Many CAD tasks are repetitive: dozens of size variants, the same export done for every revision, batch file conversion, or checking models against the same rules every time. I automate that work with Python so it becomes fast, consistent and error-free.

I build scripted parametric models using Python and OpenCASCADE, where every dimension is driven by parameters, so a new variant is generated in seconds rather than remodelled by hand. I have delivered client enclosures built this way, exported as clean, properly named STEP files ready for manufacturing.

Typical automation work includes generating product families from a parameter table, batch converting and renaming CAD files (STEP, STL, DXF, IGES), automated checks for wall thickness and file validity, and small custom tools for CAD and Revit workflows. Each tool comes with simple instructions so your team can run it without me.
Photorealistic 3D Rendering & Product Visualisation I create photorealistic renders and visuals that help products sell before they are manufactured. Typical work includes product hero shots on clean backgrounds, lifestyle scenes, exploded and cutaway views, and close-up material studies for jewellery, decorative hardware, accessories and consumer products.

My background in running a jewellery business taught me what actually sells online: accurate materials, believable lighting and clean, consistent framing across a whole collection. I build scenes in Blender with physically based materials (metals, plastics, glass, gemstones, wood), studio lighting setups and camera angles matched to the platform, whether that is a website, a marketplace listing, a pitch deck or packaging.

I can render from your existing CAD files (STEP, STL, OBJ) or model the product first from drawings and references. Deliverables include high-resolution images in your required sizes and aspect ratios, transparent-background versions for e-commerce, and turntable animations on request.

Licenses & Certifications

Autodesk Fusion 360 Integrated CAD/CAM/CAE Coursera (Autodesk) Dec 2025 – Present
Autodesk Certified Professional: Revit for Architectural Design Exam Coursera (Autodesk) May 2025 – Present
Python for Everybody (Specialization) Coursera (University of Michigan) Apr 2024 – Present