Cluckium vs Hexvellum

Cluckium is the engineering geometry calculator built for the field. Whether you're sizing a manhole cover, calculating tank capacity, or verifying whether a lid can fall through its own opening, Cluckium delivers precise, instant results in a purpose-built dark neon interface designed for professionals who need answers fast. Choose from a comprehensive catalog of over 20 plane figures and 3D solids — circles, annuli, ellipses, sectors, segments, cylinders, cones, spheres, hemispheres, capsule tanks, cuboids, and more. Switch between metric and imperial at a tap, select your input mode (radius, diameter, circumference, or area for a circle — whichever measurement you already have on hand), and get every result you need: area, volume, surface area, perimeter, diagonal, slant height, and partial-fill volumes for tanks held vertical or horizontal. The Weight screen solves forward from dimensions to mass, or in reverse from a target weight back to any missing dimension, across nine common engineering materials including cast iron, steel, aluminium, brass, copper, and concrete. Why can't a circular manhole cover fall through its own hole? Cluckium answers this with its unique Fall-Through Solver. Select a lid shape — circle, Reuleaux triangle, Reuleaux pentagon, Reuleaux heptagon, square, rectangle, ellipse, or regular polygon — enter the dimensions, and receive an instant verdict: Safe — stays put, or Falls in, complete with minimum width, maximum width, critical ratio, and a clear geometric explanation. A Field Check mode lets you compare real cover and real opening sizes to confirm seating clearance and ledge overlap on site. The Constant-Width Gallery explores Barbier's theorem and the famous curves behind the UK 50p coin. Save any calculation or fall-through verdict to your Logbook, attach a site photo, add a title and notes, then export a polished rendered geometry card straight to your Camera Roll for inspection reports or project records. The Reference tab puts EN 124 load classes (A15 through F900), a complete formula sheet for every shape, and a 22-term engineering glossary at your fingertips — all fully offline, no account required.

Hexvellum is a cartographer's table for fantasy tabletop games. Draw your world by hand on a glowing sea chart and run the whole session from the same board. Sketch three kinds of maps on one canvas. Ink overland regions with coastlines, contours, roads and rivers, then lay a hex travel grid and measure a journey by pace and terrain. Build gridded battlemaps at real scale, drop tokens for monsters and party members, and clear the room with a soft reveal as the players advance. Draw dungeons room by room and keep them hidden until the party surveys them. Everything is drawn by your hand. Pick a pen, a straight-line wall, a room, a terrain fill or an eraser, choose your ink, and undo or redo as you go. Add points of interest for settlements, dungeons, shops and dangers, and link them to encounters, quests and characters. The reference table travels with your maps. Browse a full bestiary, spell list, items and a rules glossary, then add a creature straight onto the battlemap as a token. Keep character and NPC sheets with abilities, skills, spells and gear. Assemble an encounter and watch the difficulty against your party, then start initiative with the exact creatures already loaded. Track rounds, hit points and conditions, log quests and objectives, keep tagged session notes with a photo, and roll dice with advantage, disadvantage and history. Add a portrait to a character, NPC or note with the camera or your photo library. Export a full backup of your campaign whenever you like and bring it back on another device. Hexvellum keeps your table on one living, hand-drawn chart.