my machine is not computerized. I have a quarter inch foot/I have 1/4 inch w/the metal bar. ive used the moleskin. my quarter of an inch is 1 thread left of where the bar for the 1/4" sits. so all the stuff doesn't work. but as I was told, move the stitch to zigzag and it will move the needle to where I need the quarter inch foot to be.

Don't know about that. I just mark the 1/4 inch with painters tape on my older machine. I have even seen something with a bit of height taped down to mark the 1/4

if there are no points and the size doesn't have to be accurate, otherwise, no

I found that using a command strip for my guide works better than anything else I have tried. It has a bit of height to it and my fabric fits up snug against it. Since I have to remove it when I change bobbins it does lose it's stickiness after several changes.

I have used my FW for so long now, that I don't even have to measure anymore. I just eyeball where the fabric is going toward the presser foot's right hand edge. But, to add a thought to that, I have never made a quilt that requires an "exact 1/4" or scant 1/4", so take my observations with a grain of salt this morning.

Whoever told you that is right. That's what I do and my machine is older.

Funny, I was just doing this yesterday! I have a Brother machine with the capability to move the needle over. I used my measuring guide to measure from the needle to the outside edge of the foot. I then adjusted the needle to the right just one click in order to get the 1/4". I used this on all the seams I sewed yesterday on my new quilt top, and I was very satisfied with the results.

Back to the 1/4" seam
 

I tried it on my singer and 2 jamone's and it works fine.

only if it's plain squares. Otherwise no.

Aren't we to sew three pieces together and measure the inside one to make sure it is accurate? It is the inside part that we are be sure of, not the outside part of the seam which may or may not be 1/4"? We discussed this on another thread and that's what I thought. Anyway, I rarely make quilts that are so precise for it to matter. Rail fence, 9 patch, etc.