Long arm quilt machine/frame question
I have a 18 inch throat mid/long arm on a 10 foot frame.
Recently I've noticed that my quilts end up skewed a bit, with the right hand side ending up slightly higher than the left to middle area by the time I roll it up several rolls.
I use the horizontal lock to set a line to mount the quilt top to.
I've checked that the quilt and backing are mounted squarely.
The bars are parallel and not bent.
Machine is mounted square to trolley.
I'm puzzled by what might be happening, as this out of square thing only happens on the right side of the frame.
And it happens with every quilt, so something has changed, but I can't figure out what!
Any and all suggestions to problem solve welcome!