Watch on realworldendo.com here: https://realworldendo.com/videos/friday-questions-what-is-length-control-what-to-do-about-it. Full length control slip that features a no show waistband for a smooth silhouette, inner control panel to minimize the mid-section and a tulip shaped slip that can be adjusted to wear with front, side, or back skirts. 83% Nylon, 17% Lycra.
Define target length and cut and assemble accurately
Do you avoid length additions or do you deliver excess length just to be safe? Do you have the strict requirement to deliver exactly the right length? … When reaching the target length, a cut should be triggered by the cut-to-length control. While doing so, the target length should be hit very precisely. Length additions cost a fortune in the long term and should therefore be avoided. Length additions can also be unwanted, to avoid expensive reworking steps. Achieving the precise target length requires a reliable, permanently accurate length measurement of all goods. Contact based tactile measurement instruments are exposed to wear and contamination. At high accelerations, tactile measuring equipment is exposed to slippage. Non-contact length measurement systems from ELOVIS which are used for cut-to-length control, deliver target lengths with consistently high accuracy.
Typical Materials for a Cutting Control:
- Roofing Films, Roof Sheeting
- Carpets, Nonwoven, Textiles
- Cable, Wire
- Adhesive Films
- Profiles, Tubes, Strands
- Sand Paper
Typical Cutting Systems with Cut-to-Length Control:
- Roll Cutter, Cross Cutter
- Roll Winder
- Winding Machine
- Rewinder
- Flying Saw, Flying Scissors
- Belt Saw
Cutting Control in Pipe/Profile Extrusion
When sawing and cutting extruded materials, such as pipes, hoses and profiles, a slip-free length measurement is esse...
Roll Cutter for Roof Membranes
Due to the large number of different measuring surfaces, the CTL length cutting of sales rolls of roofing membranes, ...
Carpet Cutting Control
Hardly any material is more diverse than carpet and therefore difficult to measure in length. Carpeted floor can be 2...
Cutting Control on Cables and Wire
Cable and wire are rewound and cut at high speed. Due to the high raw material prices, the ordered sales lengths must...
How Long Is Control
CAMPEN off-line Slitters Rewinders
CAMPEN Machinery A/S off-line slitter and rewinders from Denmark are customer specific machines for rewinding and sli...
Stitch Length Control Definition
Laser-Encoder
Length & Speed Measurement Systems
- Non-contact length and speed measurement, optically by laser
- Length and speed free of slippage, maintenance-free, permanently calibrated and accurately measured
- The Laser-Encoder replaces tactile measurement via impeller, wheel, measurement roller, or machine drive
- Measurement of agitated surfaces via laser-doppler surface velocimeter
ELOVIS Services
ELOVIS offers the following services in this area:
- Consulting on the subject of cutting control and packaging
- Measurement and calibration services
- Help with length complaints from your customers
- OEM sensor developments in the area of cutting and sawing lines
When you first start sewing, stitch length is not something you really think about. You just start sewing with the default stitch length, whether that’s programmed in a computerised machine, or whatever the dial is set on for a mechanical one.
Is that a bad thing? Probably not! Depending on what you are sewing, it’s a good place to start and will work for most beginner projects. But as you sew more, you’ll want to vary the length of your stitches, to suit your fabric and the purpose of your stitch. Here’s everything you need to know about stitch length:
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What is stitch length?
Stitch length is basically how long each stitch is sewn by your sewing machine.
Changing the stitch length adjusts the feed dogs, which controls how much fabric is pulled through with each stitch. For a shorter length, less fabric is pulled through. For a longer stitch, more fabric is pulled through.
What do the numbers on stitch length control indicate?
On most modern sewing machines, the stitch length control indicates the length of a single stitch is in millimetres. So a length of 3.0 means each stitch is 3mm long (or just under 1/8″). Stitch lengths typically range from 0 to 5, but can be up to 7, depending on the machine.
Older/vintage sewing machines may show a range of 4-60. No, these machines can’t make massively long stitches! This is the number of stitches per inch. Therefore, the bigger the number, the smaller the stitch (and the more stitches that can fit in an inch of sewing).
To convert between stitches per inch and mm, use these simple formulae:
stitches per inch = 25.4 ÷ stitch length (in mm)
stitch length (in mm) = 25.4 ÷ stitches per inch
Why change the length of your stitches?
The stitch length may need to be adjusted for a number of reasons:
- For basting, a longer stitch is quicker to sew, easier to remove (if required) and easier to use for gathering.
- For sewing leather or vinyl, a longer stitch to reduces the number of holes punched into the fabric.
- For top-stitching, a longer stitch length looks more professional (although this is because ready to wear clothing uses a longer stitch as it’s faster to sew!)
- Lightweight and sheer fabrics require a shorter stitch length to prevent pulling and gathering.
- A longer stitch works better for heavier weight fabrics.
- A shorter stitch results in a stronger seam, but a shorter stitch can also shred some fabrics!
- Thick threads need a longer stitch and finer threads need a shorter stitch.
- A shorter stitch length is better for smooth curves – a long stitch may make the curve look angular.
- Don’t forget, a shorter stitch is harder to remove. If you’re planning on using your seam ripper (ha! is it ever planned??), you don’t want stitches that are too small!
How to adjust stitch length
For a basic sewing machine, such as the Janome 10 Stitch, you select the stitch with the appropriate length, and the length is fixed for each stitch.
If you have a mechanical sewing machine (ie non-computerized), there is typically a dial on the front of the sewing machine, with either “length” written next to it, or a dashed line, going from short dashes to longer dashes.
For a computerized machine, there are either buttons to press to increase and decrease the length of the stitch, or a selection somewhere on the touch screen.
What stitch length should I use?
Here are some guidelines for the best stitch length to use in different situations:
Note: For free motion quilting, the stitch length may be set to zero, and the feed dogs dropped. The length of the stitching is determined by moving the fabric under the needle by hand.
Note: These are guidelines only. Always test your stitch on a scrap of fabric and adjust to the fabric, thread on your own preference!
What causes uneven stitches?
Uneven stitches can be caused by a number of reasons. Here are some things to check when your stitches don’t look even:
- Are you pulling the fabric through, rather than letting the feed dogs pull the fabric through? This is a common mistake by beginners. Try not to have your hand behind the needle, forcing the fabric. Let the feed dogs do the work!
- If the presser foot pressure is too low, the feed dogs won’t get a good grip on the fabric. Increase the presser foot pressure (check your manual for how to do this).
- Loose upper thread tension can cause uneven stitching. Check the thread is correctly threaded through the tension disc and increase the tension.
- Check the bobbin is threaded correctly.
- Change the needle.
Now you know everything about stitch length, watch the quality of your sewing projects improve!
Next steps:
- Test out your sewing skills on the best sewing projects for beginners
- Now you know what stitch length to use, learn how to sew straight.