Hydraulic Engineer vs 3D Model Viewer & Converter

HYDRAULIC ENGINEER is the most comprehensive hydraulic engineering calculator available on the App Store, featuring over 1,000 formulas across 13 specialized calculator categories, 8 temperature scale converters, and 8 professional reference tables. CALCULATOR CATEGORIES - Actuator Formulas — cylinder force, stroke, speed, and rod calculations - Fluid Power — pressure, flow, horsepower, and torque calculations - Pump Laws — affinity laws for speed, flow, pressure, and power - Vehicle Drive — drive speed, tractive effort, gradeability, and drawbar pull - Hydraulic Tubing — wall thickness, burst pressure, and working pressure - Cylinder Calculations — extend/retract speed, rod end area, and cycle times - Thermal Hydraulics — heat generation, reservoir cooling, heat exchangers, and energy to heat fluid - Oil Velocity & Pressure Loss — pipe velocity, pressure drop per foot, and total system losses - Pipe Flow — Reynolds number, Darcy-Weisbach head loss, laminar friction, and orifice flow - Accumulator Sizing — discharge volume, precharge pressure, adiabatic and isothermal gas volumes - Reservoir Sizing — open/closed circuit sizing, cylinder-based sizing, and oil weight calculations - AC/DC Electrical — Ohm's law, power, resistance, inductance, and motor selection - Area Formulas — 60 geometric area calculations for every common shape 700+ CONVERSION FORMULAS Pressure, horsepower, BTU, flow rates, linear measure, square measure, cubic measure, liquid measure, weights, watts, power, HVAC, metric, sand-to-volume, and fraction conversions. 8 TEMPERATURE SCALES Convert between Celsius, Fahrenheit, Kelvin, Rankine, Reaumur, Newton, Delisle, and Romer — 56 conversion formulas covering every combination. 8 PROFESSIONAL REFERENCE TABLES - Pipe Schedule (Schedule 40 & 80) - ISO Viscosity Grades - Recommended Flow Velocities - Hydraulic Hose Sizing (SAE) - JIC Thread Sizes - Pipe Roughness Values - O-Ring Sizes (AS568) - Wire Rope Working Load Limits KEY FEATURES - Save and share any calculation result - Share reference tables - Calculation history - Favorites for quick access to your most-used formulas - Switch between US Customary and SI Metric units - Dual-unit display shows both US and metric values simultaneously - Dark mode optimized interface - Works offline — no internet connection required PREMIUM UPGRADE Unlock sharing, advanced calculator sections, and unlimited history with a one-time lifetime purchase — no subscriptions. HYDRAULIC ENGINEER is designed for working hydraulic engineers, technicians, maintenance professionals, and engineering students. If there are formulas or reference tables you'd like to see added, just use the built-in feedback feature to let us know.

3D Model Viewer & Converter helps you inspect parts, slice cross sections, generate orthographic views, and export clean results across macOS, iPad, and iPhone. It works offline, keeps your files local, and is built for engineers, makers, designers, and 3D file users who need a lightweight way to review models before converting, exporting, or sharing them. Key Features • Import a wide range of 3D and point cloud formats, including 3MF, STL, FBX, OBJ, GLB, USDZ, MPD/LDR, DAE, TDS, AMF, LAS, PLY, PCD, XYZ, VOX, VTK, VTP, and DXF • Review a model information summary after loading, with quick access to format, file size, object/mesh/point counts, triangles, dimensions, materials, and textures • Inspect internal geometry with XY, XZ, and YZ cross sections, including automatic scan slicing and manual control of slice positions • Use exploded view to separate model components, inspect multipart assemblies more clearly, focus or pin individual parts, and export selected exploded parts to clean 3D files • Generate orthographic projection outputs — including front, top, and right views — in SVG format • Export clean 3D results to STL, OBJ, GLB, USDZ, and GLTF • Batch convert multiple source files — even across different model formats — into one target format in a single workflow • Capture model screenshots for export or sharing • Manage recent files with individual deletion and one-tap clearing to keep the entry point tidy • Basic editing tools: move, rotate, scale, delete, and undo changes to model objects • No ads. No tracking. No data collection. Just a clean, efficient workflow tool built for serious 3D review and output tasks. Pricing & Access • Free: Open and inspect models • Subscription: Unlock advanced inspection, conversion, projection export, and sharing workflows. A single subscription covers macOS, iPhone, and iPad. • Individual Unlocks: Permanently unlock the specific export and workflow tools you need — no subscription required. • Payment is charged to your App Store account. • Auto-renews unless turned off 24 hours before the current period ends. • Manage subscriptions in App Store settings. Privacy & Purchase Terms • Privacy Policy: https://apps.h53d.xyz/apps/3d-model-viewer/policy.html • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Have questions or need support? Reach out to danjian42@gmail.com.