Luis S.

Top-Rated Sheet Metal & Enclosure Design Engineer. I deliver shop-ready SolidWorks CAD, flat patterns, and DXF files optimized for laser cutting, CNC press brakes, and DFM. 100% JSS, 215+ jobs, $122K+ earned, 90+ five-star reviews, 10+ years designing NEMA/IP enclosures, racks & shipping-container structures with zero fabrication rework. ▶THE ENGINEERING BOTTLENECK Instead of theoretical CAD files that get delayed by fabricator RFIs, fabricator rework and scrap, I prioritize manufacturability from the first stroke. By applying shop-floor Design for Manufacturing (DFM) -including precise K-factor bend allowances, weld access rules, and GD&T tolerancing - I bridge the gap between engineering concepts and physical manufacturing. ▶HOW I WORK This is a typical project design overview: Project Review → Mockup → Client Review → Detailed Design → Client Review → Final Delivery. You receive complete, vendor-ready fabrication packages optimized for your fabricator’s specific tooling or platforms like Xometry, Protolabs, and SendCutSend. This end-to-end process drives immediate cost reduction—eliminating shop-floor rework, cutting ECO cycles, avoiding material scrap, and delivering production results without the budget hit of internal staffing or software overhead. ▶TRANSPARENT PRICING & RETAINER OPTIONS 💠Fixed-Price Projects: → Custom Sheet Metal Parts packages start at $110 for ~2 Days delivery. → Custom Weldments and Assembly packages start at $330 for ~3-4 Days delivery. → Custom Parts Drawings packages start at $110 for ~2 Days delivery. → Custom Assembly Drawings packages start at $220 for ~3 Days delivery. 💠Hourly Monthly Retainers: → Tier 1: $1100/mo ~ 20 hrs/mo. DFM Sprint & Advisory. → Tier 2: $1800/mo ~ 40 hrs/mo. Dedicated CAD Support. → Tier 3: $2800/mo ~ 80 hrs/mo. Production & Manufacturing Support. ▶WHAT CLIENT SAYS & CASE STUDIES 💥"Luis was great to work with. He made sure he understood the project thoroughly before starting. During the process he gave thoughtful recommendations that made the finished product better. He provided complete materials and explanations at each milestone and was always open to suggestions and further discussions. I would not hesitate to use his services on future projects." - Logistics and Planning Event Manager. 💥Shipping Container Design - Designing custom localized non-welded Hooks to completely bypass structural inspection delays during transport. 💥"Luis' quality of work and level of detail and thoroughness was excellent - exactly what is needed for CAD activity. Using his experience and greater skill level, He was able to add unexpected detail and value to the drawings that our organization could not." - Engineering Manager, SKF USA. ▶CORE SERVICES ✅Custom Metal Enclosure Design: NEMA/IP-rated housings, Weatherproof, Ingress Protection Design (IP) electronic cabinets, cabinets, and racks engineered against your actual environmental and access requirements, so the design passes fabrication review the first time instead of bouncing back for rework. ✅Weldments & Structural Framing: Car racks conversions. ✅Shipping Container Designs: Footprints to match EU and US shipping pallets, Inspection bypass for forklift features and hoisting. ✅Sheet Metal & Flat Pattern Design: Bend allowances, laser layouts, and flat patterns dialed in to your fabricator's tooling, cutting factory cycle time and scrap from bad K-factors, CNC-ready DXF flat patterns, 2D shop drawings, and Technical Bill of Materials (BOM). ✅DFMA Review: I flag and fix the tolerance stack-ups, weld access issues, and assembly conflicts that generate fabricator RFIs before the package ever leaves my desk. ✅Fabrication-Ready Packages: SolidWorks/Inventor/Fusion models, STEP, DXF, BOMs, and fully dimensioned 2D drawings your vendor can quote and build from without a clarification call. ▶TECHNICAL CAPABILITIES | WHY WORK WITH ME ✅K-Factor Bending Optimization: Laser-cut DXF flat patterns optimized for CNC press brakes to prevent physical rework. ✅FEA Simulation: Linear static stress and load tests to target safety factors (1.5x to 2.0x) to simplify final structural certification. ✅MIG/TIG Frame Generator: Custom structural frames with real-time weldment cutlists. ✅GD&T ASME Y14.5 & ISO Fits: Precise tolerancing to eliminate workshop assembly clearance issues. ✅Lightweighting & DFM: Value engineering using geometric optimization to lower material costs. ✅Off-The-Shelf (OTS) Hardware Integration: Fastener and hardware routing (McMaster-Carr, Misumi, Wurth) with exact manufacturer part numbers. ✅Precise fabrication materials: CRS, A36/GR50, A500, AL 3003-H14, AL 6063, ABS, Silicone Rubber from suppliers like Ryerson. ▶HOW TO START Send me a direct interview invite or project scope today. I will review your technical requirements and respond within 24 hours to keep your production schedule on track.