Baitam Castosco

A hanging mobile only looks calm when every knot sits in the right place, and Baitam Castosco works that place out for you. Start 🚀 from the ceiling hook and build 🔨 your set the way a mobile maker sketches it, tier by tier: each arm carries a piece or another arm at either end, cut from birch ply, walnut, brass, felt, cork or one of five other materials. Baitam Castosco solves the whole tree from the bottom up and tells you, for every arm, how far from its left end to tie the cord, how much weight it carries and how long each drop should be. Slide a knot off true and the stage tips that arm and says how many millimetres to move it back; pieces that would swing into each other are flagged as a clash, and a thin arm that will bow under its load gets a sag warning. For a shape of your own, photograph the cut-out beside a ruler, set two scale pins, tap 👆 round its edge, and Baitam Castosco gives its area, centre of mass, weight and the drill point that lets it hang level 🧗. It all runs on your phone, offline. What you can do: build 🔨 and balance ⚖️ multi-tier sets, trace your own cut-outs from a photo 📸, pick from 12 piece shapes in 10 materials, and look up nine common hanging faults with their fixes.