Modifying an inexpensive presser foot.
Purchased this foot off Ebay for $.027 free shipping.
Is what I expected, but having a few issues with it, first had to soak in acetone for a few seconds to get rid of some of the sharp plastic tib bits left over from the manufacturing. Cleaned it up perfectly.
Next issue, needle opening is only 6mm wide, and not exactly centered with the presser foot quick attachment bar, so it of off center. Can only use up to 5mm wide zigzag this foot or else the needle hit the foot.
Next issue. just noticed it this morning, when practicing some straight line stitches. For the first time in a long time using a 40wt poly thread with size 14 needle, the needle thread shredded. An unusual event for me.
Look at the cone of thread, looked fine, then looked at needle to see if had a bad hole, looks fine.
Then got out better specials, and hand cranked the sewing machine and looked very closely at the needle, it just grazed the front edge of the foot in the needle hole, and when doing an entire cycle of stitch, the thread gets pinched between the needle and front edge.
Changed needle to see if it was a bent needle, same thing.
I would guess about 1/4 of mm was the issue.
Decided to sand down the edge making the needle hole a bit larger, success, works with plenty of room for needle and thread for pass-through needle hole.
Would take too much sanding to make the hole wider so just going to watch how wide I use zigzag with this foot.