Question about Simplicity Serge Pro SW432 Mechanical Sewing Machine

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I'm sewing a mediumweight denium,but I get puckered at the begining of serging, so my question is do I need to change the top blade or lower blade or needle?

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Change the needle & tension

Posted on Jan 03, 2011

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1 Answer

My baby lock BL4-434DF is having trouble serging over even quite thin cross seams. I have changed bottom blade, which didn't make any difference. I am sure it has to do with positioning of bla


  1. Have lower blade even with the needle plate
  2. Have upper blade overlap (like shears) at least 1/32 of an inch or less.
  3. The blades must meet but not overlap too much or fabric will just jam
  4. Move 1 blade at a time.
  5. Run machine Without it being threaded to check progress

Jan 03, 2015 | Baby Lock Sewing Machines

2 Answers

What to do if sewing machine is puckering?


Depends on why the seam is puckering. Read this: http://www.amefird.com/wp-content/uploads/2010/01/Minimizing-Seam-Puckering-2-5-10.pdf
Offhand, it sounds like you need to reset the top tension properly.
http://quilting.about.com/od/piecingtechniques/a/How-to-Adjust-Sewing-Machine-Tension.htm
The top two photos here are the upper and underside of a single ply of muslin sewn with a balanced tension. The blue thread is on top, red in the bobbin: http://www.picturetrail.com/sfx/album/view/22521551 -- that will give you something to shoot for.

Jun 12, 2014 | Kenmore 19233 Computerized Sewing Machine

1 Answer

Aow to avoid or minimise the puckering while sewing


YOUR PUCKERING IS DO TO EXCESS TENSION. LOWER YOUR TENSION ON TOP. IF IT STILL IS DOING IT YOU MAY HAVE TO LOWER THE TENSION OF YOUR BOBBIN CARRIER.

Apr 28, 2014 | Janome Sewing Machines

1 Answer

Elna sewing machine fabric is puckering


Check tension and threading up first, sounds like top tension or thread catching somewhere. Also have you changed the needle, i change mine for EACH new sewing project, needles go blunt and need replacing every 4-6 hours of sewing. Lastly, press seams as you go, this improves appearance and blends stitching into the fabric,

Mar 05, 2013 | Elna Sewing Machines

1 Answer

When sewing with the brother serger 1034d, loops of thread stick out beyond the fabric-it is not nice and close like it's supposed to be. the settings from left to right are: 4,4,3,3. this is what my...


Can you wind the lower cutting blade to the right to cut less fabric and therefore fill out the stitching? On most sergers the lower blade position can be adjusted sometimes with a little knob or dial. You need to raise the top blade out of the way first, usually you put pressure onto it to release the spring holding it up against the lower blade, then swing it up to do this. Then wind the adjustment on the lower blade and move it to the right to cut less fabric then test serge. Your manual should give you more specific information on this and should be your first 'go to".

I would adjust my looper tensions to suit the fabric and width of the stitch I'm trying to achieve so yes, the settings you've been given are average tensions but its okay to vary these too. From left to right, I'd set 4, 4, 4, 4 and test serge again and see if this pulls the looper threads in against the fabric if moving the blade hasn't tightened up the stitching.

Sergers are more variable than a straight stitch sewing machine so its okay to move tension knobs a bit, just turn each a half number each time you adjust, then test serge and look at the stitch formation. Your needles tension should be fine at 4, leave them alone.

I'd suggest if you can find one, go to a "Getting to know your serger" type class as there is lots of techniques such as seaming on a curve, turning right angles, both inside and outside and making rolled hem edges that are very helpful serger skills to learn along with making adjustments and troubleshooting. Or go to you-tube and search some of these techniques for videos. Also www.sewing.about.com is a great sewing resource and Debbie has pages on sergers/overlockers here too.

When I'm starting a new dressmaking project I will spend 10 mins on the overlocker/serger, changing the thread colour to suit the garment, then test serging and adjusting the stitch tensions to suit the fabric. I have 4 cones of thread each in white, black, beige, grey, pink and pale blue and these threads will give a suitable finish on most fabric colours and prints. Then there is wooly overlocker thread, this is a fluffy thread that you can use for rolled hems as the thread relaxes once stitched and "fills" out the closely stitched edge covering the rolled fabric edge and is another whole area of fun to try out.

Often I'll just use a three thread to neaten the raw edges of a seam I will press open. Or I will assemble a whole knit garment using the four thread stitch, so much faster then stitching seams, then neatening. Jersey knits and sergers are made for each other.

As an aside the D on your machine model would denote "differential feed" too - briefly differential feed is adjusting the amount that the two feed dogs move under the foot and means you can "hold back" the fabric as it is stitched (0.5), or "stretch" it out (1.5 or 2 setting). Really handy for loose weave fabrics that stretch as you serge them, you can compensate using the differential feed setting. And in reverse, you can create a "lettuce" or wavy edge by turning the differential feed up.

I hope that this helps you out with your Brother 1034D and hasn't just confused you. Good luck.

Aug 01, 2011 | Brother 1034D Mechanical Sewing Machine

1 Answer

If my machine is not cutting right do I need to replace both blades


not necesarily, can you see a knick in either of the two blades? use a magnifying glass and see if you can see any damage first.

Then try changing the fixed bottom blade only first, you may have got a replacment top blade in your accessory bag new with the machine.

The blades themselves are very high grade steel just like scissor blade so should last for quite a long time, provided they don't come into contact with a pin.

You can buy the bottom blade for your machine here http://www.sewingpartsonline.com/lower-knife-babylock-60544.aspx along with the top blade and other spares.

Also, remember to clean the blades of lint regularly and give them a wipe with a cloth moistened with a little clear sewing machine oil from time to time.

Jul 06, 2011 | Simplicity Serge Pro SW432 Mechanical...

1 Answer

The looper stitches are coming over the cut edge of the fabric. I have the cutting width set to WIDE.


you don't say what make and model serger this is.

However, as a rule of thumb, set the blade to widest setting, then test serge and tighten up the top and bottom looper threads to encase the cut edge neatly. So you would need to turn the dials on the two right hand knobs to a higher number, just move each dial one number at a time and test serge again.

The other possibility is that the thread is not between the tension discs properly, so check your thread paths, when you pull on the thread below the tension dial, it should feel firm to pull.

I always test serge scraps when sewing a new fabric and adjust the tensions to suit it before beginning a new project as a lightweight fabric will behave differently to a heavy fabric.

Apr 02, 2011 | Sewing Machines

1 Answer

I have a babylock imagine overlocker and what looks like the lower looper is puckering. I have some pictures available to best understand what I am refering to if this would help.


I have the same problem with my Imagine and am trying to find someone with some real knowledge. I think the problem is that the forks holding the thread are not opening up as wide as the stitch width and this causes puckering. if you serge just off the material your stitch will probably be perfect but your blades will not touch the fabric. My sewing repair shop thinks I used my machine too much and that I should send it to babylock which would cost 500 to 600 . How silly is that. I am trying to find out how to adjust the forks or someone who can do it for me. If you find something please post answer.

Dec 28, 2010 | Baby Lock Imagine

1 Answer

Letture leaf edging


From "Serge With Confidence" by Nancy Zieman:

Set the machine up for a 3-thread rolled edge. Normal width; length 1 - 2.

Use Woolly Nylon in the loopers & regular thread in the needle.

Lock or disengage the cutting blade.

Guide fabric along the right edge of the presser foot.

Stretch and equal amount from fron to back while serging.

Lower the differential feed, if available to about 0.6.

Serge at a slow to moderate speed.

Practice with scraps first.

After serging, gently stretch & release the fabric edge after serging.

Apr 01, 2010 | Janome MyLock 634D Mechanical Sewing...

1 Answer

My white speedylock 1600 is being difficult.. The top threads lay and look perfect.. but the bottom threads are loose.. What can I do about this?


This machine has differential feed (top tension is different from bottom and fabric feed rate can be different from bottom). turn the dials for tension and feed rates to adjust. Adjust bottom tension to tighten bottom threads and possibly speed up bottom feed rate. Tough to say without more info.

Good luck and please rate me.

From White Sewing web site.

"Are wavy fabrics making you seasick? Do puckers leave a sour taste in your mouth? Then you need differential feed. It eliminates distortion and wavy seams when serging knits, plus it prevents puckers and pulled seams on lightweight fabrics. Turn the dial again for instant gathers.

Nov 23, 2009 | White Sewing Speedylock 1600 Mechanical...

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