Hassan H.

Mechanical Design Engineer for 3D CAD modeling, product design & development, sheet metal, weldments and manufacturing-ready drawings. I take your sketch, photo, 3D scan or existing part to SolidWorks models, STEP/DXF/STL files and fabrication drawings your manufacturer can build from. I'm a PEC-registered mechanical engineer with 4+ years of industry experience (Komatsu, MANCAD) and Top Rated status with a 100% Job Success Score on Upwork. I hold the Certified SOLIDWORKS Design Professional (CSWP) certificate, plus Dassault Systèmes certifications in SOLIDWORKS Additive Manufacturing and SOLIDWORKS xMold. I design for function, fit and manufacturing from day one, so your files work on the shop floor, not just on screen. MECHANICAL DESIGN & PRODUCT DEVELOPMENT • New product design from concept to production-ready parts and assemblies • Mechanism design & motion study: linkages, sliders, hinges, drawers, lift and fold-out mechanisms • Machine design: frames, shafts, power-train parts, grippers and end-of-arm tooling • Enclosures and housings for electronics and consumer products • Redesign, design review and improvement of existing products • Material selection, cost reduction and DFM/DFA optimization 3D CAD MODELING & DRAFTING • 3D models of parts and assemblies from sketches, photos, 2D drawings or physical samples • 2D to 3D conversion and CAD file conversion (STEP, IGES, STL, DWG, DXF) • Manufacturing and assembly drawings with GD&T, tolerances, BOMs and exploded views • Parametric, configurable models for product families SHEET METAL, WELDMENTS & FABRICATION • Sheet metal design: flat patterns, bend allowances, K-factor, enclosures, brackets, panels • Weldments & structural frames: steel frames, staircases, racks, canopies, machine bases, benches and tables • CNC laser and plasma cutting-ready DXF/STEP files • Nesting for material savings and G-code generation for CNC cutting and machining PLASTICS, MOLDING & 3D PRINTING • Plastic part design for injection molding: draft, wall thickness, ribs, bosses, snap fits • 3D-print-ready designs with correct clearances, tolerances and print orientation • Functional prototypes, including moving and multi-part assemblies REVERSE ENGINEERING & SCAN TO CAD • STL, 3D scan and CT scan data to fully editable parametric CAD (Geomagic Design X, SolidWorks) • Rebuilding legacy, broken or discontinued parts from samples and measurements • Automotive panels, composite parts, consumer products and mechanisms ENGINEERING ANALYSIS & SIMULATION • FEA: stress, deflection, factor of safety and thermal analysis • CFD: airflow, aerodynamics and fluid flow analysis • Design validation and optimization before you spend on manufacturing (ANSYS, SolidWorks) RENDERING & VISUALIZATION • Photorealistic renders and exploded views for pitches, catalogs and product listings (KeyShot) INDUSTRIES Consumer products · Automotive · Drones/UAV · Heavy equipment · Metal fabrication · Robotics & automation · Furniture & fixtures · Lighting · Event & stage design · Hydroponics & agritech RECENT WORK (see portfolio) Manta-ray drone with CFD & FEA · Power-train shaft with GD&T drawing · Coffee machine sheet metal enclosure with laser-ready DXFs · Modular spiral staircase for fabrication · CT-scan reverse engineering of a moving mechanism · Laser/plasma nesting and G-code for steel plates SOFTWARE SolidWorks (sheet metal, weldments, assemblies, simulation) · Fusion 360 · Autodesk Inventor · AutoCAD · Siemens NX · Geomagic Design X · ANSYS (FEA & CFD) · KeyShot FILES YOU RECEIVE Native SolidWorks files · STEP/IGES · STL · DXF/DWG · PDF drawings · Renders HOW I WORK Free short consultation before we start to discuss feasibility and manufacturing approach · Clear milestones and regular updates · Support during manufacturing Send me your sketch, drawing or idea, and I'll reply with how I'd approach it and a clear quote.