Machines and thread
Puckering, explained
The usual causes are a backing too light for the fabric, fabric stretched or loose in the hoop, or a design too dense for it, such as a file made for denim sewn on a T-shirt. Fix it with cut-away on knits, flat hooping without stretching, and a file made for the fabric. In Embrizo, the knit and stretch presets lighten the density slightly and add more pull compensation and heavy underlay; see the problems and fixes guide.
