Walking Foot Material Feed Problem -- Shifting

[cdthayer]

On 10/22/2016 at 10:59 AM, JJDD said:

Techsew 2750 (similar to 2700, but with a bigger bobbin).

Is that a new machine or an older one?

I’ve got a worn 1959 Singer 111G156 that doesn’t like to sew thin materials.  It kind of turns the work curving the stitch line, and has even puckered the top layer at times.  I found out that the inner foot was not lifting cleanly off of the work before starting its movement forward and lightly drags on the top layer.  It may just be an adjustment, but it’s got a lot of slop when I wiggle the foot, so I think that it’s wear.  The machine sews fine on thicker or firmer materials that don’t seem to be affected by the light drag.

CD in Oklahoma

 

[JJDD]

Hey all,

It's a new machine @cdthayer. Took a look at again in slow-mo, and I really do think it's something to do with Gregg From Keystone Sewing suggested: "Often the presser feet and feed dog do not match, and the points of contact tell the story." 

I feel like I've tried so many different combinations to see what's the problem - but going to try all original factory settings again - original presser feed, feed dog, etc.

It would mean that whatever / even minor uneven surface there is now really pushes that material to the side (it's almost impossible to correct when it's moving along). So it would be a great relief if that's all it is - but also onto the next thing to figure out with the leatherworker.net community -- how to get level smooth feed dogs.

For now, still working this out. Suggestions welcome

Keep you all posted! 

Edited October 25, 2016 by JJDD

[shoepatcher]

Send pics of what you have once the original parts are back in.  We can suggest things but pics will tell us a lot!

glenn

[Techsew Ron]

20 hours ago, JJDD said:

I feel like I've tried so many different combinations to see what's the problem - but going to try all original factory settings again - original presser feed, feed dog, etc.

Best bet is to return to original factory provided presser feet and feed dog and see if the problem persists. Keep us updated!

Ron

[JJDD]

Thanks Ron, will do ! You all are very helpful

[JJDD]

@Techsew Ron sent an updated email - please check it out when you get a chance

thanks!

[JeannieH]

Hello everyone. This is my first post and I'm having a problem. I have a consew 227 r. My machine moves my material to the right and it's causing it to be impossible to see straight edges without an edge guide. After some inspection....I see that my inner presser foot starts off in the right position, but once it gets a second from its lowest point..it moves to the right and when it gets back to the highest point it moves back to the center where it should be. At first I thought the feed dog was moving it...but it does it even when it isn't able to contact the feed dog. Any advice on what's going on?

[brmax]

Welcome to the site Jeannie

This is an interesting article with some great tips. So to start i should say first that checking the bar that the presser foot is mounted to for excess slack sideways or other directions is worth noting. Other than the above

The presser feet i have purchased in recent times are seriously lacking in mounting alignment, their bottom surfaces not being level and what bothers me also is the inconsistent height. 

I have honestly had to rework or tune every single one i have purchased, a pita!

What i can say i found is the very reason "i think" why some factory original items are so much more costly. ( i would hope )

So If the machine parts are sound and little to no slack i would assume the feet as they are secure in mount can be tuned, or the bottom surface sanded with some sand paper of the wet dry kind in 400 first and followed with 600 grit. 

Its a task that requires ultra care sheilding other parts from the grit. This can be done with tissue placement over the hook areas and vacuming prior to removing the sheilding. Theres not a lot of grit but a clear need to be aware of.

First i try to position the feed dog surface to be flat level with other area surrounding surface. When in that position secure the pulley wheel with a rubber door stop or eraser 

Moving on, and i know this is long winded, sorry. Anyway i would always just put the grit side facing the feet and pull the sheet through carefully taking turns both ways. It may take some coaxing or even backing off the top pressure tension some times so as not to tear the paper, get a few sheets.  After 8-10 times take a look and try to keep the feed dog level with other surface. A Tip is to color bottom side of presser feet with say a sharpie to verify where exactly it is being sanded and not equal. 

I have done this an afterward without needle at first run a sheet of paper under as sewing noting if paper was running true. This can be a long a tedious task, and it does work. I was and still am happy if a typing sheet can run true its length, this is again tedious if many but amazingly it works. Cording feet can be tough but done

Following that this other basic top presser tension adjustment can help if one of the two layers seem to get longer or shorter. Using two layers of same 2-3 feet long material sew these "without" thread if they appear to be matched in length at end of sew Great! If not one can adjust the presser tension on top and this can seriously help to keep the layers perfectly even. 

Good day

Floyd

[JeannieH]

Thank you for your response!  I actually figured out the problem after a while.  I took my outer foot off and noticed that the movement of the inner foot to the right stopped!  I looked at the outer foot (looks like it was fabricated some how by whoever lol) had a section of metal that stuck out.  So, as the inner foot got to that section it had no choice but to follow and move to the right!  Sooo I got a metal file and sanded it off...voila!!  No more movement to the right and I can finally so straight edges without a guide.  I've had this machine for almost a year and have been at my wits end trying to sew straight by going at an angle....simple fix!

[LumpenDoodle2]

I also think you should check the inner presser foot bar is aligned correctly.  It the easiest thing to fix, and I'm a big fan of checking the easiest/obvious to see first.

 I cured slight crabbing by shifting the bar on my Juki by a tiny amount.

(or you can file the excess off the outer foot).

Edited March 13, 2017 by LumpenDoodle2