My pfaff2044 started sewing uneven stitches. It can sew nice then next second leave a big stretch then sew normal again and then itll leave a bigger stretch it also wont blind stitch.

Hello!

There is more than one way. This is an easy way to make an elastic waistband on mid to lightweight fabric.
Begin by measuring the waist diameter and subtracting 2" from the measurement.
An easy way to make an elastic waistband is to sew the ends of the elastic together, creating a loop with the elastic. Be sure there are no twists in the elastic before sewing the ends together.
Fold the elastic in half using the seam as one edge and mark the other side with a pin. Fold the elastic in half again and mark the two other folds.
Your elastic should now have 3 pins and the seam quarting the circle.
Hopefully your pants have a center, back and two side seams, making the next step easy. If not, fold and mark the front back and sides like you just did with the elastic.
You're now ready to pin the elastic to the OUTSIDE of the pants. Line up the edges of the fabric and elastic. Match the marks on the elastic to those on the pants and pin them together.
Using a quarter inch seam, stretch the elastic between the pins/quarter marks and sew it in place.
IF your machine has a lightening stitch, use that. If not a zigzag stitch will wear better than a straight stitch, which will also work but may snap if used on a stretchy fabric.
After you have attached the elastic fold it to the "inside" of the pants taking care not to fold or bend the elastic. You have just created a nice finished top edge to your pants!
Giving the elastic a stretch so it fits the fabric, pin the front, back and sides like you did before, making sure to pin the lower edge of the elastic.
Stretching the elastic to make it fit the pants, stitch the lower edge close to the edge, again with a stretchy stitch if possible.
Next stitch the top close to the edge from the front. (I know it's already attached, but this will keep the top looking nice.) 1/8" looks nice, but just make sure your distance to the edge is consistant.
Sit back and admire your handy work! You've now got the elastic sewn on and there are no exposed raw edges.

If you are working with a heavier fabric let me know and I can explain how to make a casing for the elastic. The kind you thread the elastic through.

not sure if this will help you out..if you scroll to the bottom of this page on the left you will see Previous Lessons:
lesson 1: Welcome and intro first,
lesson 2: Guide to Buying a Sewing Machine
lesson 3: Sewing Machine Supplies
lesson 4: Getting to Know Your Machine
lesson 5: How to Thread Your Machine
lesson 6: How to Sew a Straight, curved, and corner line
lesson 7: How to Sew a Basic Seam
Lesson 8: Trouble Shooting Your Sewing Machine
Lesson 9: Basic Sewing Terms

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Looks like stitch #06 might be a stretch stitch. You could probably also use a slight 08 or 09 zig-zag. Unless you are sewing something really stretchy (lycra) IMHO, a slight zig-zag is fine and actually is a lot faster than a stretch stitch which takes a few stitches forward and then one or two stitches in reverse. The stitch #09 is something that I use frequently for stretch fabrics.

Elina 40 Question and Answers

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A zig-zag is also a stretch stitch. Usually, a "built-in" stretch stitch will stitch forward a couple and then stitch backward and then stitch forward again (time consuming and uses a lot of thread--but suitable if that's what you want). Whatever you are sewing, whether it is a seam or finished raw edge and the fabric is stretch, you will need to use a stretch or zig-zag. A straight stitch will pop the threads as soon as the fabric has to give.

You can test your stitches on some scrap fabric and see what looks best.

An Over-edge stitch is just that, just a stitch over the fabric edge. It probably would not be suitable for sewing a seam.

Drop your feed dogs, remove your normal foot... replace with embroidery or darning foot... or leave without a foot. stretch fabric in a hoop..... set your stitch.. and sew as you move the hoop.

Lower the pressure on the feed dogs, use a stretch stitch, and longer stitch length. Be sure to use a good quality thread, and maybe go lighter weight thread.

this is caused by uneven winding of the bobbin, sometimes the spool of thread winds unevenly when it travels up and down the spool. the best solution i have found is to use small spools of thread when winding the bobbins

this sounds like its set for zippers check settings!

Am about to buy this machine for my wife and the sewing machine cabinet I have chosen has parameters as far as the overall dimensions of the machine. Can you provide me with the width, depth and height of this sewing machine. The cabinet is offered for sale by Sears so it ought to work but still I will feel better with this information. Thank you.

Your machine cannot do a cover stitch. Check the Brother website, they make a cover stitch only machine, it works much better than any of the serger/cover stitch combination machines, and it is a lot less money.