Friday, November 11, 2011

Fixing Serger Stitch Challenges

By David Trumble

Serger stitch quality is vital. While sergers sew faster and use more threads than a ordinary sewing machine, they still should produce professional quality stitches.

In one pass, the serger stitches, overcasts, and trims at speeds twice the conventional sewing machine up to 1500 stitches per minute. Speed, stitch quality, trimming, overedging, and a multitude of threads work together to give the serger huge advantages over conventional sewing machines.

Professional looking stitches with vast varieties of applications, make sergers a prized sewing tool, although you still need a regular sewing machine.

When tensions are just right and each thread lies where it is suppose to be, it is a good stitch. Things like irregularities, loops, and puckers just dont exist.

A little common sense and serger care are helpful in overcoming stitch flaws in your serger.

A common source of stitch problems relates to problems with tensions. When you suspect difficulties here, rethread and make sure thread is right. Seat the threads carefully in their tension devices. Finally, adjust one thread at a time until all tensions are balances. Use a different color for each thread to make it easier to track.

Sometimes the stitches just do not look right. It may be weirdly formed, it may have hiccups, or may have rough inconsistent edges. We might describe these stitches as being simply irregular. When you find these challenges, begin by examining the thread line. Check for missed thread guides, possible snags, improperly seated thread in the tension assemblies, or poorly positioned thread rack. Correct as needed.

The quickest way to fix threading issues is to properly rethread the serger. Replace the needles if you see irregularities in the seam line. Pre-trim the edge on certain problem fabrics. Adjust stitch width or length as needed. Smooth Check for rough spots and burrs that might snag the thread.

Set up is a major undertaking on some sergers. It is easy to make little mistakes like failing to rebalance the tensions. Therefore, when serger problems after setting up new arrangements, go back and repeat the set up carefully.

Thread breakage can be very frustrating in part because it requires rethreading the serger far too often. When threads are breaking, check the obvious issues: needles, threads, tensions, burrs, and presser feet. Replace needles and make sure threads are flowing properly.

Why do threads break? We have found several common causes, but sometimes it is the thread itself. Old, rotten, decayed thread do not perform well. Use good quality thread and see if the thread breakage continues.

Generally, when the stitch quality is less than acceptable there are some basic things to check every time. These include needles, thread and threading, tensions, loopers, snag causes, settings, and balance. Replacing needles properly, rethreading properly, and adjusting tension balance are the three basic approaches to solve stitch problems.

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