I've been reading some threads here with anticipation of seeing my issue. I will inject that I have a Consew 1541 like the juki namesake. The problem I have with loopy stitching is right after a corner turn. The lower thread gets all loopy. When sewing vinyl it become much more noticable of an issue. I have another machine a 205RB and it sews the vinyls fine. The 1541 sews well except on corners and worse on corners with vinyl. All this is when using 5/32 welt cord and a 1/4" welt foot. Have tried a few welt feet. I'm going to see if the needle is being deflected when turning corners. I us a 140 needle and 69 polyester thread.
Interesting threads here I must say.
