Journal
Notes from the loom.
What we learned building the engine: weave structure, thread counts, and the arithmetic that decides whether cloth repeats cleanly. Every diagram below is drawn by the same code the tool runs.
Woollen and worsted
Two cloths from the same fleece that behave nothing alike. What fibre length actually changes, why one shines and the other does not, and how far the difference goes.
Weave repeats, and which way the twill leans
A weave is a rule four threads wide. What 2/2 and 3/1 actually mean, why S and Z are worth specifying, and how a number that small decides the size of your repeat.
How to read a thread count
K4 B24 K2 W6 is a complete description of a cloth. What each part means, why the first and last stripes are counted once, and what changes when the sett repeats instead.
The seamless tile is not the sett
A 62-thread tartan in 2/2 twill does not repeat every 62 threads. Here is the arithmetic, why almost every plaid generator gets it wrong, and what it looks like when it does.