Ingeniería mecánica Jobs

Dispongo de una piscina cubierta climatizada de unos 510 m² que actualmente funciona con un deshumidificador de 20 kW. Quiero optimizar el sistema: conservar el equipo existente, pero añadir un recuperador de calor que renueve el aire interior y eleve la calidad ambiental sin disparar el consumo energético ni el nivel de ruido. Busco un especialista en HVAC que desarrolle una solución completa, incluyendo: • Auditoría del sistema actual: balance de humedad, caudales de aire y rendimiento del deshumidificador. • Cálculo de la tasa de renovación necesaria para la superficie y volumen de la piscina. • Selección o dimensionamiento del recuperador de calor y ventiladores, con fichas técnicas. • Esquema de i...

Necesito a alguien con experiencia real en mecánica de motos para resolver un problema específico en el motor de mi motocicleta. El fallo se manifiesta con pérdida de potencia y ruidos inusuales; no hay señales de avería eléctrica, ni fallas en transmisión o frenos, por lo que busco un diagnóstico completo de la parte mecánica del motor y la posterior reparación. Lo que espero: • Revisión y detección de la causa raíz del problema de motor. • Presupuesto detallado de repuestos y mano de obra antes de iniciar. • Reparación, ajuste y puesta a punto. • Prueba en ruta corta para verificar rendimiento y ausencia de ruidos. • Breve informe final con las acciones ...

Estoy arrancando un pequeño emprendimiento de reciclaje y necesito un diseñador de moldes que me ayude a convertir mis horquillas ecológicas ­– sin el clásico resorte metálico, 100 % plástico – y unas perchas resistentes en un sistema de inyección listo para producción. Qué espero recibir • Planos completos en 2D y 3D (STEP o IGES) con las dimensiones exactas, la estética final, la funcionalidad interna y la ubicación de mi logo o marca tanto en horquillas como en perchas. • Recomendación de cuántas piezas conviene alojar por disparo; la meta es maximizar cavidades sin sacrificar calidad. • Cálculo de área proyectada, presión de inyecci&oacut...

AAA16-501862-AA Piece1-14, 38 Must be in English

I need a .stl file converted to a .step file for manufacturing purposes, with the .step being generated from scratch to match the .stl and be used for quoting injection molding. The .step file should retain high detail with minor simplifications, and is not simply converted using Fusion360, FreeCAD, etc. . No modifications to the original .stl file are required prior to conversion. Ideal Skills and Experience: - Experience with CAD software - Proficiency in .stl and .step file formats - Experience generating .step files for injection molding/mold design - Attention to detail - Ability to perform minor simplifications while maintaining high detail

I need a comprehensive Building Conditions Report for a historic CME Church in Washington, NC, specifically for restoration planning. The report should assess: - Structural integrity - Electrical systems Special attention is required for historical features: - Stained glass windows - Original woodwork - Architectural details Ideal Skills & Experience: - Experience with historic buildings - Knowledge of preservation techniques - Strong assessment skills in structural and electrical systems - Attention to detail for historical features

I’m building an industrial machine that needs a clean, reliable power-distribution harness and I want the entire job developed inside SolidWorks Electrical. I will share the mechanical models, device list and connector preferences; you will turn that information into a complete harness package ready for manufacturing. Because the focus is power distribution rather than signal or control, conductor sizing, protective devices and trunk/branch routing efficiency are critical. There are no external ISO or IEC mandates on this project, so you are free to apply proven best practices and your own template libraries to speed up the work. Please handle the full workflow in SolidWorks Electrical 2D/3D, including wire style definition, cabinet layout references and any 3D routing needed for c...

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I’m building a compact, four-legged robot and need a mechanical designer who can take it from concept to validated CAD. Whether you prefer SolidWorks or Fusion 360 is completely up to you—the important part is a solid background in robotics mechanisms, joints, linkages, and gears, backed by a portfolio that shows assemblies in motion rather than static renders. Project scope The core task is a lightweight yet strong leg architecture. Each leg will have hip and knee joints that must offer a wide range of motion and allow precise control once the actuators and gearing are in place. Please reserve internal volume and mounting points for a Jetson board alongside a battery pack, and route cabling logically so the final build stays neat. What I expect from you • A full 3D ...

I have a set of Fusion 360 models for mechanical parts that need to be translated into clear, shop-ready 2D manufacturing drawings today. The finished sheets must show every critical dimension and tolerance so a machinist can start cutting without a single follow-up question. Here is what I expect: • Generate orthographic and section views directly from my Fusion 360 files. • Apply accurate dimensions, GD&T tolerances, and callouts that follow standard drafting conventions. • Layering, line weights, and annotation styles should match typical machine shop standards so the drawings can drop straight into a production workflow. • Deliver the drawing package in the native CAD file as well as a print-ready file (PDF or similar). A short, paid test drawing of one part w...

I work with leather-craft suppliers and need to show them exactly what I’m after. I have five small metal parts—three semi-hollow rivets that share the same stem diameter but vary in overall length and head style, plus two matching end caps. What I need from you is a clean set of manufacturing-ready visuals that spell out the basics without drowning anyone in excess detail. Scope • One PDF sheet per part (five sheets total). • Each sheet should display a clear front view and side view with labelled overall length, stem diameter, and head diameter or shape height—nothing more granular than that. • Use any CAD package you like (AutoCAD, SolidWorks, Fusion 360, etc.); I only need the output as print-quality PDFs so my vendors can quote and tool accordin...

Freelancer Requirement: Design & Development of Long-Range Electric UAV (Stealth Capable) We are seeking an experienced UAV design and embedded systems expert/team to collaborate on the end-to-end development of a long-range electric drone with advanced capabilities. Project Overview We are building a high-endurance unmanned aerial vehicle (UAV) with the following target specifications: Flight Time: ~16 hours Payload Capacity: 5 kg Base Weight (without payload): ~45 kg Propulsion: Electrically powered (Single fan propulsion system) Configuration: Fixed-wing / hybrid (open to expert recommendations) Special Requirement: Low observability / radar signature reduction (stealth-oriented design) Should have AI capabilities to take decision Purpose : Survillance Scope of Work 1. UAV D...

I have five graduate-level hydraulics questions that need fully worked, textbook-quality solutions. You will show every step, state each assumption you make, and keep the units consistent from start to finish. Hand-drawn, clearly labeled diagrams are mandatory for every problem; scan them neatly so the geometry and force directions are unmistakable. The set covers: • Fluid mechanics – with special emphasis on viscous shear and torque (treat these two aspects as equally important, as this section is my top priority). • Hydrostatics – complete force and centroid calculations on submerged surfaces. • Momentum & energy – a water-jet striking a moving cart. • Pipe flow – friction losses via Darcy-Weisbach, friction factor from the Colebro...

I’m building a new adventure park and need a structural engineer who can take my ropes-course and zip-line concepts all the way from safety calculations to permit-ready drawings. Rough sketches and partial plans already exist for several sections, while other elements still need to be designed from the ground up, so you’ll be switching seamlessly between review/optimisation work and clean-sheet creation. All primary members, platforms, anchor points and connection details will be fabricated in composite materials. If you have previously specified pultruded or moulded FRP profiles, worked with hybrid composite-steel interfaces, or certified composite load paths for dynamic attractions, that’s exactly the sort of expertise I’m after. Your calculations must satisfy cu...

3D modification of the machine enclosure.

I need a complete engineering solution for an ultra-low-frequency electromagnetic transmitter that operates at roughly 22 Hz and fits inside an inline pipeline PIG. Once the PIG is in service, the beacon’s field must be strong enough to be detected up 3–5 m above the pipe, even when the signal has to pass through steel wall, backfill, soil, and asphalt or reinforced concrete. All operations take place underground and fully enclosed by steel, so coil geometry, core selection, drive strategy, and noise rejection are critical. Scope of Work: • Design a low-frequency (~15–30 Hz, target 22 Hz) EM transmitter • Optimize signal strength for underground detection • Develop efficient antenna/coil design suitable for pipeline use • Design low-power circuitry fo...

I need a complete General Arrangement Drawing for a custom‐built heat exchanger that must meet ASME requirements. This is not a standard shell-and-tube, plate, or air-cooled unit; the configuration is unique to the process, so I’m looking for someone who can translate my process data and preliminary sketches into a clear, fabrication-ready layout. The drawing has to indicate all critical overall and nozzle dimensions, support details, lifting points, weld seams, and space envelopes for maintenance. I work in AutoCAD, so a DWG file accompanied by a clean PDF is essential. If you normally add a simple bill of materials and a drawing legend, please include those as well. Acceptance is straightforward: the file opens error-free in AutoCAD 2021, dimensions and notes align with the ASME ...

Greetings! I have multiple projects, ranging from homes and apartment blocks through to office towers, retail spaces, warehouses, and light-industrial plants, and I need complete HVAC designs turned around quickly. Every building requires the full suite—reliable heating and cooling, balanced ventilation, and active air-quality control—so your plans must integrate those three elements seamlessly rather than treating them as add-ons. Because these systems will be submitted for LOCAL PERMITS, every drawing, calculation, and specification must meet the applicable local building codes. If you also work to ASHRAE or other industry benchmarks, that is a welcome plus, but code compliance is the hard requirement. Deliverables WE expect for each building: • Precise load calculatio...

This project focuses on the validation of an experimental investigation on a novel Concrete-Filled Steel Tube (CFST) pier-to-foundation connection with tubed RC encasement using advanced finite element modeling in ABAQUS. The objective is to reproduce the experimental/numerical work presented in and verify the accuracy of the FE model by comparing: Load–displacement (load-drift) behavior Failure modes (FM1, FM2, FM3) Stress and strain distribution Lateral resistance and stiffness The ABAQUS model includes: Concrete Damaged Plasticity (CDP) for concrete Steel modeled with elastic–plastic behavior Surface-to-surface contact with friction Embedded constraints for reinforcement Boundary conditions simulating real test setup Validation is performed by comparing FE results with ...

I need a comprehensive design for a 500 sqft ISO Class 6 cleanroom, specifically for pharmaceutical production. Essential features include: - An air filtration system Ideal skills and experience: - Expertise in cleanroom design, particularly for pharmaceutical applications - Knowledge of ISO Class 6 standards and requirements - Experience with air filtration systems and other cleanroom technologies Please provide detailed designs and ensure compliance with industry regulations.

I’m developing a line of custom workspace furniture focused on employee well-being and efficient use of floor space. The pieces will be built primarily from precision-bent sheet metal with complementary timber or composite accents, so strong sheet-metal modelling skills are essential. The overall look must stay ergonomic and functional; I need height-adjustable stations that encourage healthy posture throughout the day. Beyond the core requirement of smooth, reliable adjustability, I want the frame geometry optimised for strength and minimal material waste. If you can also weave in neat touches such as hidden cable runs or optional lumbar accessories, that’s a bonus. You’ll receive basic sketches, target dimensions, and load specifications. From there I’ll need: ...

I'm looking for a skilled designer or engineer to create a pet stroller specifically for medium-sized pets (20-50 lbs). The key requirement is that the stroller must have a foldable design for easy storage and transport. Ideal skills and experience include: - Experience in designing pet-related products - Knowledge of materials and mechanisms for foldable structures - Understanding of safety and comfort for medium-sized pets

I’ve thought of a product that springs to life at the tap of a phone or web button, and I need a talented maker to turn that idea into a fully functioning prototype. The core is a pop-up mechanism—whether you favor solenoids, springs, or a tiny geared motor, I’m open—as long as it rises smoothly, reliably, and safely. Control will come from a Raspberry Pi or Arduino (again, whichever you feel best suits the task), with clean wiring and firmware that listens for a remote trigger. Alongside the hardware, I’ll need a very lightweight app or web page that exposes a simple trigger; bonus points if you can add basic status feedback without over-engineering. I’m happy to supply sketches and dimensions. To keep the conversation focused, please share: • P...

Requirements: - Based in China (essential) - Experience with trailer/service body design - Proficient in CAD (SolidWorks, AutoCAD, Inventor, etc.) - Able to produce accurate fabrication drawings - Understanding of manufacturing processes - Must liase with Chinese factories Details: - Ongoing work - Remote role - Flexible hours Please describe your experience and include examples of similar work.

I’m commissioning a complete design for a 12-gauge shotgun purpose-built for competitive skeet shooting. The goal is to move from a clean sheet concept to a fully detailed, manufacture-ready package in no more than four weeks. You’ll take the performance requirements of fast target acquisition, minimal felt recoil, and consistent point-of-impact, and translate them into a mechanically sound action, barrel set, stock geometry, and sighting solution. Whether you prefer SolidWorks, Inventor, or similar CAD software is up to you—what matters is that the native files and neutral STEP formats are delivered alongside clearly labeled 2D drawings. To keep things transparent, here’s exactly what I need handed over at the end: • 3D CAD model of the complete firearm (...

I need a CT scan of the septal cartilage converted into a finite element model for medical research. The focus is on analyzing deformation patterns. Requirements: - Expertise in CT imaging and FEA - Background in medical research, particularly in cartilage or related areas - Proficiency in software used for FEA modeling - Attention to detail and accuracy in model creation Ideal Skills: - Mechanical engineering - Biomedical engineering - Computational mechanics Please provide relevant experience and a timeline for completion.

This project revolves around refining the functional-component layout of my prototype artificial womb. The area demanding the greatest attention is the waste-management system, and every decision we make for it must integrate seamlessly with the nutrient delivery, monitoring, and control subsystems already drafted. I will provide the current CAD files, fluid-routing diagrams, and interface specifications for the existing modules. Your task is to redesign the waste-removal loop so that it: • fits within the spatial envelope defined in the main chassis model • couples mechanically and digitally with the sensor suite (temperature, pH, and flow) without adding new panels or ports • maintains sterile pathways while allowing routine cleaning through the service bay already a...

Sto pianificando la realizzazione di una scala a giorno in metallo per interni e mi serve un disegno tecnico completo che possa essere consegnato direttamente al fabbro e al falegname. Cosa mi aspetto: • Modellazione 2D/3D della struttura metallica con gradini in legno, pedata ed alzata in legno completa di misure, spessori e punti di fissaggio. • Tavole esecutive in PDF e file editabili (DWG/DXF o STEP), pronte per taglio e saldatura. • Indicazioni sui materiali: acciaio al carbonio, gradini in legno,tolleranze. • Un semplice render o vista esplosa per aiutare la comprensione del design finale all’impresa che la installerà. Requisiti chiave: – La scala sarà collocata all’interno di un’abitazione, quindi attenzione ...

I will send you several SolidWorks part files (.SLDPRT) that need quick edits: more than five existing mounting holes must be shifted to new locations. I already know the exact positions for most of them and will supply those dimensions right away. For three of the holes, I still need to confirm the final coordinates, so I’ll lean on your SolidWorks expertise to suggest practical placements that keep clearances, material thickness, and manufacturability in mind. Here’s what I need back from you: • Updated .SLDPRT files with all hole relocations completed and fully regenerated without feature errors • An export of each part as a dimensioned drawing or STEP file, just so I can double-check before release • A brief note outlining any design considerations or c...

I’m preparing a full-scale production run of a custom over under, firearm and now require complete 3D modelling and drafting of three core components—the barrel, trigger mechanism, and stock. The work must be built natively in SolidWorks so I can integrate it with the rest of my assembly files, run tolerance studies, and generate tool-paths directly from your models. Every model you create has to be ready for the shop floor. That means fully defined geometry, proper material call-outs, accurate GD&T, and exploded assemblies that leave no guesswork for the machinist or the CNC programmer. Drawings should include revision blocks, surface finish notes, and critical dimensions called out in both imperial and metric where appropriate. Because the finished product will enter th...

Only Ontario, Canada licensed engineers need to apply. We are seeking a qualified mechanical, structural, or industrial engineer to design lifting lugs for a DeScaler box. The ideal candidate will have experience in creating safe and efficient lifting lug designs that align with Canadian industrial standards. Your expertise will be crucial to ensure the lifting lugs meet all necessary specifications and safety regulations. Candidates should be detail-oriented and capable of providing innovative solutions. Candidate should be familiar with Canadian standards and weld specifications and have done previous similar jobs. Should be familiar with solid works, Ansys, AutoCad and must be a PEO. If you have a solid background in engineering design, we would love to hear from you! Only Canadian/ US...

The washing machine in my laundry room has suddenly stopped responding. Power is definitely reaching the unit—the outlet and the machine’s indicator light are both on—yet when I press the Start button absolutely nothing happens. There were no prior warning signs: no burning smell, no odd noises, and no leaks. It simply refuses to kick into action. I need a technician who can come on-site, run a proper diagnostic with the right tools (multimeter, continuity tester, control-board reader, etc.), pinpoint the failed component, supply or advise on any replacement parts, and get the washer running smoothly again. Successful completion means I can load a cycle, press Start, and the drum runs through its full program without hiccups. Please let me know your earliest availabilit...

Hi I will share the details with the shortlisted candidates. Thanks

Project Overview: We require a skilled SOLIDWORKS designer to fully model two (2) custom-built material handling carts based on provided specifications and reference drawings. The deliverables include complete 3D assemblies, production-ready technical drawings, and machine-specific cut lists for tube laser, sheet laser, and press brake operations. Scope of Work: Cart Specifications: • Cart #1 – 80 inches length • Cart #2 – 112 inches length • Both carts are identical in design except for length Key Design Features to Model: • Welded steel frame with closed-off front on bottom frame • Full solid bottom sheet (flat plate on top of base frame) • 4-way forklift pockets integrated into base • 3 vertical uprights per cart, angled backward (s...

Hi I will share the details with the shortlisted candidates. Thanks

I'm seeking an experienced engineer to create a detailed schematic drawing for part of a hydraulic system. The system predominantly consists of tanks linked by pipes, along with pumps and a pressure exchanger. Requirements: - The schematic must include: - Pipes - Pumps - Pressure Exchanger - Tanks - Manifold Ideal Skills and Experience: - Proficiency in hydraulic system design - Experience with schematic drawing tools/software - Attention to detail and accuracy - Engineering background, preferably in fluid mechanics or related fields Please provide samples of similar work and a brief overview of your approach to this project.

I'm looking for a 3D CAD designer based in Australia to replicate rifle bolt protectors and decockers. They will be mailed to you and and are to be mailed back open completion. The purpose of this is for 3d printing. See link for video detailing the 4x bolt protectors. Video will give a good idea of what is involved. _____________________________________________________________ I have a collection of mechanical parts that must be reverse-engineered into clean, manufacturable 3D models. Each item needs a medium level of detail: all functional surfaces, threads, and key clearances accurately captured, yet without over-spending time on ornamental features that don’t affect production. The end goal is manufacturing, so CAM-ready geometry matters. I will supply dimensioned sket...

I’m looking to build a simple wearable mask prototype that combines light and vibration to create a relaxing sensory experience. The device should include LED lights (preferably RGB) positioned so they shine through closed eyes and run different light patterns. It should also include 1–3 small vibration motors that sync with the light patterns to enhance the experience. I’d like a few basic modes such as calm (slow and soft), medium, intense, and a random mode that generates varying patterns. The patterns should transition smoothly and not feel harsh or abrupt. The device should be controlled with 2–3 simple buttons (power and mode switching). No app or connectivity is needed. It should be powered by a rechargeable battery (USB-C preferred). The physical build d...

My company Quimper Bike Components, based in Victoria, BC, is seeking a talented Mechanical Engineer or Gear Specialist to finalize the design of a high-density, compound planetary human-powered bicycle gearbox. This system is specifically engineered for high-torque, human-powered mountain biking, focusing on efficiency for steep mountain climbs. Responsibilities: Design and organize a complete STEP file including the gearbox, shifter, cranks, front chainring and rear chainring, Ensuring smooth power flow across all 16 speeds, optimizing for high-density packaging within standard bicycle frame constraints. You must also create a 5-minute explainer video detailing the internal logic, power flow paths for specific gears, and mechanical advantages so the Quimper Bike Components team may unde...

I'm looking for an innovative design for a portable strength training machine using resistance bands. Key requirements: - Adjustable resistance levels - Multiple attachment points for versatility - Portable for easy transport and storage Ideal skills and experience: - Experience in fitness equipment design - Mechanical engineering background - Knowledge of resistance band training Please provide a portfolio with relevant projects.

This tssk focuses on using finite element analysis (FEA) to study the mechanical behaviour of a sugar mill roller shaft under realistic operating conditions. The task requires modelling the shaft in engineering software (NX Nastran) to predict how it deforms and where stresses are concentrated, particularly at critical نقاط where failure is likely due to fatigue. Students must apply appropriate loads (such as roll pressure and torque), define constraints, and choose suitable mesh and element types while justifying all modelling decisions. The analysis is carried out for two scenarios—roll load only, and combined roll load with torque—to compare their effects on stress and deformation. Finally, the results, assumptions, and engineering reasoning must be clearly presented in a st...

I need a clean set of technical drawings for a plastic shredder I recently prototyped. Every major component should be shown on its own sheet in basic outline form—no need to call out material specs or tight tolerances, just accurate overall geometry and key dimensions. The final package must also include one exploded-view assembly drawing that clearly shows how the parts fit together. I will supply a folder of detailed photos of the physical machine to guide you; feel free to ask for any additional angles you may need. Please deliver everything as print-ready PDFs. If you prefer to work in CAD first, that’s fine, just export the final sheets to the required format. I’ll review for clarity, correct scaling, and completeness before sign-off.

I'm seeking an experienced designer with expertise in SolidWorks and ANSYS for a rack and pinion steering system. This system is intended for a passenger car. Key tasks include: -I have uploaded a IGS file for ansys - Perform dynamic simulation motion analysis in ANSYS. Ideal skills and experience: - Proficiency in SolidWorks for complex automotive designs. - Expertise in ANSYS for dynamic simulations. - Background in automotive engineering, especially steering mechanisms. - Attention to detail and ability to meet project deadlines.

I need a production-ready DWG drawing for a metal vehicle holder that will support an LED light. The file must sit on its own layout sheet and include: • Complete 2D views with dimensions and tolerances suitable for laser cutting and bending • A simple 3D isometric view for quick visualization • Material specification (mild steel unless you recommend better) and total mass so the metal shop can quote and fabricate without extra calculations • Hole sizes, fastener call-outs, and any mounting brackets needed to secure the LED light firmly to a vehicle frame I have not locked in whether the holder will bolt to a wall, ceiling, or the vehicle floor, so feel free to propose the most practical configuration. The priority is a compact, rugged design that keeps the ...

The raw scan data files will be shared. Based on this information, we need the complete model to be generated. Everything must be modelled – the main frame, the structure to which the wheels are attached, the components and all interfaces – within a single parametric assembly. Once the geometry is ready, the standard product engineering steps must be followed: defining tolerances, specifying standard fasteners, wall thicknesses and ribs. The model must be prepared for machining or according to the relevant manufacturing technology. Deliverables: Native CAD files and neutral formats (STEP/IGES) of the complete assembly and all exploded views. 2D manufacturing drawings with tolerances and an exploded view. Bill of materials for each part number. List of standard components ma...

I'm seeking a mechanical engineer specializing in vehicle dynamics to optimize ride comfort by refining our independent suspension system. The focus areas include: - Suspension Optimization: Improve performance to minimize vibrations and enhance ride quality including vibro-acoustics. - Finite Element Analysis (FEA): Assess and simulate suspension input loads to inform design modifications. - Multibody Dynamics: Analyze the interaction of vehicle components to ensure durability and comfort. Ideal candidates will have: - Expertise in ride comfort and suspension systems - Proficiency in FEA and multibody dynamics software - Strong background in mechanical engineering and vehicle dynamics Please provide relevant experience and approach.

I want to launch a fresh range of premium silicone food moulds under our brand, Mould Works, aimed squarely at professional chefs. The line must cover cakes, chocolates and pastries, so each design has to balance eye-catching detail with the rock-solid durability a commercial kitchen demands. Here is how I see the job unfolding: • Research – Start by mapping out what is already on the market for chefs: shapes, sizes, cavity counts, release finishes and any recurring pain points around cleaning or longevity. A concise findings summary will guide the design direction. • Concept development – Translate those insights into several mood boards and quick CAD thumbnails, narrowing down to the strongest forms. I am open to innovative textures or multi-cavity layouts ...

I need a detailed modal analysis carried out in ANSYS Mechanical (Workbench or APDL) on a composite beam that is mounted on linear springs at both ends. The study is part of my master’s research, so every modelling choice—from element selection and mesh sensitivity to boundary condition justification—must be fully traceable. Two configurations must be investigated: 1. The bare beam on linear springs. 2. The same beam on linear springs with a centrally-mounted lumped mass (a disc). I already have the exact beam dimensions and material properties for the composite lay-up; I will share them once the project starts. What I require from you is to import or build the geometry, assign the composite stack, model the linear spring supports correctly, and extract natural frequ...

Tôi đã có sẵn bản thiết kế phần vỏ của máy bán bắp rang dạng túi. Giờ tôi cần bạn lo trọn phần “ruột”: 1. Thiết kế toàn bộ kết cấu và cơ cấu bên trong dựa đúng khung vỏ hiện có, bảo đảm máy có thể: • Đổ hạt, nổ bắp, ướp gia vị và đóng vào túi. • Giữ nhiệt an toàn, chống kẹt hạt và vận hành liên tục như mô hình “ポップコーン自販機 仕組み” mà bạn có thể tham khảo trên mạng. 2. Lên danh sách vật tư (BoM) kèm mã linh kiện, nhà cung cấp gợi ý và báo giá ước tính để tôi dễ đặt hàng. Tài liệu t&oc...

I need an engineer to sign off on a steel ballast support for a residential HVAC condenser. Requirements: - Structural integrity assessment - Professional engineering credentials - Experience with HVAC systems -Familiarity with San Francisco seismic and wind requirements Ideal Skills & Experience: - Background in mechanical or structural engineering - Familiarity with residential HVAC systems - Strong knowledge of steel support structures