The warp formula, the twist rule, the WPI test — from Fiber Bench
warp = finished × (1 + take-up) + 2 × tails + loom waste
| craft | take-up | tails | waste |
|---|---|---|---|
| Tablet | 20% | 150 mm | 50 cm |
| Inkle | 15% | 100 mm | 38 cm |
Worked: 60 cm tablet = 72 + 30 + 50 = 152 cm
| threading | forward | back |
|---|---|---|
| S | twines Z | twines S |
| Z | twines S | twines Z |
Flip every 10 turns.
Under 8 = bulky, 10–12 = worsted, 14+ = fine.
From FIBER BENCH — free to print for your bench, class or club.
New picks, one thing worth making.