Last night, I was making a feeble, and futile attempt to sew loops in some 1" poly strap.
My goal was to set 4 parallel bar-tacks across the strap end, leaving a loop. The first zigzag or two, as I ran forward and reverse across the width of the strap went fine until I heard a snap or two, and discovered a tangled mess from the bottom thread.
I figured my tension was too low, so I dialed up the tension, ripped out the old attempt and tried again... and again... until I gave up.
I managed to get one or two successful bar-tacks in, but it wasn't worth the agravation...
I've successfully sewn rolled hems, flat-felled seams, grossgrain tie-outs, 3 hammocks, 1 tarp, and a partridge in a pear tree... (don't ask me how I got the pear tree under the pressor foot!)
Help! What am I doing wrong?