On Monday, October 17, 2016 at 11:28:30 PM UTC+11, Brian Christiansen wrote:
On the quilt I am repairing, I am making "prototype squares," and what I
mean is that I am working out the best/fastest way to replace the
squares I am replacing.

I have a presser foot that is for sewing parallel lines. In theory,
this sounds real good for making the "concentric squares" that I talked
about.

This foot is held together by 3 screws, 1 that holds it to the holds it
to the needle bar with the other 2 for the adjustment of the width
between the row of stitches that is already made and the one that is
currently being sewn (this is the closest I can find to what I have:
http://www.sewingpartsonline.com/zip...ank-55411.aspx,
but on the one I have, there is also a holder for a bar that can be run
along the existing stitching that can be adjusted from ~2 to ~4 inches,
I think).

The problem is that the screw that adjusts the width comes loose very
easily, and when that happens the needle hits the solid part of the
presser foot and breaks, I think I broke 2 needles before I figured out
what was going on, and decided to do it the "old fashioned" way, with a
ruler to figure out where the parallel lines go.

--
Brian Christiansen

Hi Brian,

Have you tried swapping the screws around?
Are there are feet that have screws you could try from?

Feeble comments I now, but worth a try.

Cheers,
Di