* Note: Any pattern that only goes UP or NEUTRAL in the second heddle can be replicated via a single pickup stick.
By jadedResearcher. Special thanks to paradoxLands for additional coding (especially the ability to save and load to images), and to karmicRetribution (for user testing).
Knowledge gained from:
Weaving 2/1 Twill on a Rigid Heddle Loom, by Sylvia Emard on her blog "I Dyed it My Way"
Inventive Weaving on a Little Loom, by Syne Mitchell
Weaving on 3 shafts, by Erica de Ruiter
A v1, non rigidHeddle specific version of this tool can be found here.