Bench Reference vs Piece by Piece

Bench Reference — The Professional Jeweler's Pocket Guide Everything a bench jeweler needs, right on your phone. Bench Reference puts 30+ reference sections, professional calculators, and a personal library system in your pocket — no internet required. GEMSTONES & MATERIALS Browse 100+ gemstones with Mohs hardness, specific gravity, refractive index, care instructions, setting tips, steam safety, and cleaning methods. Filter by hardness or steam safety to make quick decisions at the bench. Plus dedicated sections for pearls, birthstones, gemstone origins, and stone shapes. BENCH TECHNIQUES Step-by-step reference guides for stone setting (prong, bezel, pavé, channel, flush, tension), soldering, casting, polishing, engraving, wax carving, repairs, annealing, torch & gas, laser welding, rhodium plating, patina & oxidation, and chemical safety. Each section built from real bench experience. 23 METALS Melting points, annealing temps, hardness, specific gravity, and working notes for every metal you'll encounter — from 24K gold and platinum to palladium, steel, and titanium. REPAIRS HUB Sizing up, sizing down, shank replacement, prong rebuilding, chain repair, clasp replacement, soldering guides, porosity troubleshooting, and more. A complete repair reference when you're at the bench. MEASUREMENTS & DATA Ring sizes (US/UK/EU with conversions), wire gauge reference, MM-to-carat weight charts by stone shape, chain styles, necklace and bracelet lengths, finding sizes, and formulas for weight, pricing, and alloy calculations. IDENTIFICATION & TESTING Gemstone testing methods, acid testing procedures for gold, silver, and platinum, hallmark identification, metal allergy reference, and a Stone ID table with SG and RI values for quick identification. PROFESSIONAL TOOLS Ring Blank Calculator — stock length for any ring size Metal Weight Calculator — weight by dimensions and alloy Job Pricing Calculator — materials, labor, and markup Temperature Converter — Fahrenheit and Celsius Weight Converter — grams, dwt, troy oz, carats Bench Timer — burnout and casting countdowns 3D PRINT & CAD Castable resin profiles, resin comparison charts, shrinkage calculator, burnout schedules, support placement guide, troubleshooting, post-processing, printer settings, and stone-in-place casting. Plus MatrixGold CAD shortcuts and workflows. MY LIBRARY Your personal database. Store product specs, component details, alloy recipes, consumable inventory, and supplier contacts. Add photos, SKUs, links, and notes. Organized by category, searchable, and always with you. LEARN & PRACTICE Flashcards and quizzes covering gemstones, metals, setting techniques, and bench skills. Study at your own pace. Perfect for apprentices and seasoned jewelers brushing up. GLOSSARY 200+ jewelry industry terms defined clearly — from bail to burnisher, firescale to findings. NEW IN v8.1 Redesigned splash screen and home page Expanded and fact-checked reference data across metals, solders, gemstones, and casting Added Wire Gauge reference, Patina & Oxidation section, and new gemstones to Stone ID Fixed display issues and icons throughout the app General polish and performance improvements BUILT FOR THE BENCH No ads. No subscriptions. No internet required. Bench Reference is built by jewelers for jewelers — a single purchase that works offline, everywhere you need it.

Learn how a mechanical watch comes apart—and goes back together. Piece by Piece is an interactive 3D watchmaking trainer built around a manual-wind movement. Rotate the watch, zoom into the mechanism, choose virtual tools, and move components yourself. 13 SHORT LESSONS Begin by identifying the parts and learning their purpose. Then practice releasing stored power, removing the balance and escapement, dismantling the winding works and gear train, rebuilding the movement, and fitting the dial and hands. LEARN BY DOING Use screwdrivers, tweezers and other virtual tools. Follow clear contact markers, choose the appropriate driver blade, lift parts clear, align them with their seats, and watch the balance run again. HELP WHEN YOU NEED IT Each guided step explains why it matters. Open a detailed hint or skip a step when you need to move on. Guided, Practice and Assessment modes let you choose how much help you receive. EXPLORE EVERY PART Browse the A–Z parts guide to see the same 3D watch components used in the lessons, learn what each part does, and understand where it belongs. START ANYWHERE All lessons are available from the start. Progress saves after each completed step, and lessons completed in full receive a checkmark. Works offline. No sign-in required. Progress stays on your device. This simulation teaches part relationships and service sequences. It uses simplified geometry and interactions; it does not replace supervised practice with a real movement or certify repair skills.