DigitSmith

Problem with pull compensation

Like Tree1Likes
  • 1 Post By aardvark7

Reply
 
Thread Tools Search this Thread
Old May 8th, 2015, 10:19 PM   #1 (permalink)
diana35758 diana35758 is offline
Junior Member
Join Date:
Aug 2014
Location:
Madison, Alabama
Posts:
6
Liked:
0 times
Default Problem with pull compensation

It seems so simple to digitize a 1 in square in a logo and stitch it out without distortion but I cannot seem to apply the correct compensation. I am stitching it out on a soft knit. I am using a med weight cut a way with top dressing. I have two underlays, a tatami and zigzag. I put the pull compensation up to 60% and have a 60degree angle on my tatami fill. Where am I going wrong? Thanks so much for your help! BTW I do have holes in the fill so it is not solid square. I have a small design stitched in the middle of the square.
Send a private message to diana35758 ContactReply & Quote
Old May 9th, 2015, 03:00 PM   #2 (permalink)
harleydude777 harleydude777 is offline
Member
Join Date:
Mar 2011
Posts:
78
Liked:
11 times
Default Re: Problem with pull compensation

Quote:
Originally Posted by diana35758 View Post
It seems so simple to digitize a 1 in square in a logo and stitch it out without distortion but I cannot seem to apply the correct compensation. I am stitching it out on a soft knit. I am using a med weight cut a way with top dressing. I have two underlays, a tatami and zigzag. I put the pull compensation up to 60% and have a 60degree angle on my tatami fill. Where am I going wrong? Thanks so much for your help! BTW I do have holes in the fill so it is not solid square. I have a small design stitched in the middle of the square.


Run your fill stitch horizontally and pull out the right and left sides close to 5mm on each side......maybe 15-20% pull comp and it should sew out square.....if it still pulls in on each side to much pull them each out another 5mm and see if that works.......sometimes what you think are the simplest things to digitize are actually the toughest......
Reply & Quote
Old May 9th, 2015, 06:17 PM   #3 (permalink)
diana35758 diana35758 is offline
Junior Member
Join Date:
Aug 2014
Location:
Madison, Alabama
Posts:
6
Liked:
0 times
Default Re: Problem with pull compensation

Quote:
Originally Posted by harleydude777 View Post
Run your fill stitch horizontally and pull out the right and left sides close to 5mm on each side......maybe 15-20% pull comp and it should sew out square.....if it still pulls in on each side to much pull them each out another 5mm and see if that works.......sometimes what you think are the simplest things to digitize are actually the toughest......
Thanks so much for your reply! I have always digitized geometric shapes at an angle so not to go with the the direction of the weave of the fabric. (or so I've been told) Do you think it matters here? Soft knit is the worse for me.
Send a private message to diana35758 ContactReply & Quote
Old May 12th, 2015, 11:13 AM   #4 (permalink)
aardvark7 aardvark7 is offline
Member
Join Date:
Jul 2014
Posts:
55
Liked:
12 times
Default Re: Problem with pull compensation

As you've discovered, there can be many factors that affect the stitching and you need to take them into account.

With regard to the direction of fill, certainly weave can be an issue, but so can the stitches coming after!

You need to judge what will happen and, if possible, test the fabric. Generally, though, soft knit has less issues with the weave than most, unless it is a very open gauge (in which case the trouble is stitches falling into the gaps and maintaining accuracy of position). For knitted fabric the simplest way is perpendicular to the rib.

Indeed, back in the day of mechanical punching, because the process consisted of using a pantograph with two axes, tatami was almost always horizontal simply to make it quicker.

To get back to your problem, it may not even be the punching, but could be the backing, framing, tensions, needles, or even the timing of the machine!

To go into everything would take ages, bt try these:

Is the backing good enough, or does it lose its integrity as it is sewn? If it's cut completely through by the sewing then it won't do its job.

Does the backing have an orientation? If so it can mean compensation needs to be different depending upon the angle of the stitching (not practical), so you'll need to use more than one piece arranged at angles.

Are your needles sharp? If they have blunted tips then they could cut through the backing and cause the issue above

Is your thread fine, needing a greater density, or is your density correct for the coverage?
The more threads and the higher the density, pull becomes a greater issue (just try gently winding a thread around your finger and see how tight it gets with increasing turns!).

Is the thread too tight? As any mechanic and he'll tell you that most operator's solution for a machine not stitching quite right is to give the tensioners a 'little tweak'. Before you know it the tension is very high, adding to the pull.

Are you framing with the correct tension of fabric? If it's too loose you'll see a greater pull effect, but too tight and the garment will pucker after finishing. You shouldn't be able to grab the cloth with a gentle pinch (although the degree comes with experience).

Finally, if the pantograph movement is not timed correctly for the fabric, the 'backlash' can cause the needles to enter the fabric in the wrong position. If you could see it in slow motion the frames won't move perfectly to the point and stop (especially at higher machine speeds), but rather bounce like a spring at the end of each movement. Try running at a slower speed and see if the effect is the same. If there are significant differences you need to get your machine serviced!

I hope this isn't too confusing and helps a little.
Robert Young likes this.
Send a private message to aardvark7 ContactReply & Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
SWF machines, problem with thread-control olsen Embroidery and Digitizing 5 January 9th, 2015 02:46 PM
Having a problem with my machine Muhammad.Syrian Embroidery and Digitizing 2 September 22nd, 2012 01:51 PM
Sublimation printing problem tiborius1 Dye Sublimation Printing 3 November 23rd, 2009 04:55 PM
[ doubt ] from pc to embroidery machine process and a problem _jas Embroidery and Digitizing 2 April 11th, 2009 03:27 AM
Pull Compensation Help. Eric Embroidery and Digitizing 1 February 15th, 2009 12:39 PM

All times are GMT -4. The time now is 10:30 AM.
Copyright © 2011 DigitSmith. All rights reserved.
Forums software by VBulletin, Copyright © 2000-2024, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.