Thread the machine before you sew anything

A sewing machine will not work if the thread is not seated correctly in the tension discs and needle. The thread path matters more than the thread itself — even expensive thread will skip stitches if it is routed wrong. Most machines have a diagram printed on the body showing where thread goes; follow it exactly, step by step, with the presser foot raised.

Raise the presser foot first. This opens the tension discs so thread can slip between them. If you thread with the foot down, the thread will sit on top of the discs instead of between them, and your stitches will be loose and uneven. Guide the thread from the spool through the guides (small hooks or slots along the top and sides of the machine), then down through the tension assembly, then through the needle threader if your machine has one, and finally through the needle eye from front to back. The needle eye is tiny — use good light and thread the needle last, after everything else is in place.

Wind a bobbin (the small spool that holds thread underneath the needle plate) before your first project. Most machines have a bobbin winder on the side or top. Place an empty bobbin on the winder spindle, guide thread from your main spool through a tension guide on the winder, and wrap it around the bobbin a few times by hand. Press the bobbin against the winder wheel and step on the foot pedal or press a button until the bobbin is full. The winder will stop automatically when it is done. Cut the thread and remove the bobbin.

Key Takeaways

  • Thread the machine with the presser foot raised so thread sits between the tension discs, not on top of them.
  • Insert the needle with the flat side facing the correct direction for your machine — check your manual if you are unsure.
  • Wind a bobbin and insert it into the bobbin case underneath the needle plate before you start sewing.
  • Pull up the bobbin thread by turning the handwheel toward you once, which catches the bobbin thread and brings it to the surface.
  • Start sewing slowly by pressing the foot pedal gently, and use the presser foot to hold fabric flat against the needle plate.

Insert the needle and wind the bobbin

The needle must be inserted correctly or it will break or skip stitches. Most machines have a small diagram on the needle clamp showing which way the flat side of the needle faces. Loosen the needle clamp screw, slide the needle up as far as it will go, and tighten the screw firmly. A loose needle will vibrate and break. If you are not sure which direction the flat side should face, check your machine's manual — it varies by brand.

Insert the wound bobbin into the bobbin case, which sits under the needle plate. Open the bobbin door or remove the needle plate (depending on your machine type), drop the bobbin into the case, and guide the thread through the tension spring. Close the door or replace the plate. The bobbin thread should be taut but not tight.

Bring the bobbin thread to the surface

Before you sew, you must pull the bobbin thread up through the needle plate so both threads are on top of the fabric. Turn the handwheel (the large wheel on the right side of the machine) toward you one full rotation. This lowers and raises the needle, which catches the bobbin thread and brings a loop to the surface. Pull both threads gently toward the back of the machine and hold them out of the way while you sew the first few stitches.

If you skip this step, the machine will tangle thread underneath the fabric and jam. If you do jam, stop when ready, raise the presser foot, and gently pull the fabric toward you while turning the handwheel backward. Do not force it. Once the fabric is free, remove it, cut away tangled thread with scissors, and start again.

Position fabric and lower the presser foot

Place your fabric under the needle with the edge aligned to a seam guide (the lines marked on the needle plate). Most guides are marked at 1/4 inch, 1/2 inch, and other standard seam widths. Lower the presser foot by moving the lever at the back of the machine. The presser foot holds the fabric flat against the needle plate so stitches are even. Never sew with the presser foot up — the tension will not engage and stitches will be loose.

For your first project, use two pieces of scrap fabric or an old cotton sheet so you can practice without worrying about mistakes. Sew a straight line 6 inches long, then remove the fabric and inspect the stitches. They should be even in length and tight enough that you cannot pull the thread out easily. If stitches are loose, the thread may not be threaded correctly or the tension may need adjustment — check the threading first before you change any dials.

Sew by controlling the foot pedal

The foot pedal controls speed. Press it gently to sew slowly, and release it to stop. Do not press it all the way down right away — most beginners sew too fast and lose control of the fabric. Start with light pressure and increase speed only after you can sew a straight line without the fabric pulling or bunching.

Guide the fabric with your hands, but do not pull it. The feed dogs (the metal teeth under the presser foot) move the fabric forward automatically. If you pull, the fabric will bunch and stitches will skip. Use your hands to steer gently left or right to follow a line, but let the machine move the fabric. Keep your fingers at least 2 inches away from the needle — if the needle hits your finger, it will break and can cause injury.

To sew a corner, stop with the needle down in the fabric, raise the presser foot, and pivot the fabric 90 degrees. Lower the presser foot and continue sewing. This keeps stitches tight at the corner instead of loose or skipped.

Finish a seam and remove fabric

When you reach the end of your seam, press the reverse button (or move the lever, depending on your machine) and sew backward 3 or 4 stitches. This locks the thread so it will not unravel. Release the reverse button and sew forward again to the end of the fabric. Raise the presser foot and pull the fabric toward you gently. The machine will cut the threads automatically if it has a thread cutter, or you can cut them with scissors, leaving a 4-inch tail on both the top and bobbin thread.

If you need to remove fabric in the middle of sewing, raise the presser foot first. The presser foot must be up to release tension, or the fabric will not come out. If fabric is stuck, do not yank it — raise the presser foot, turn the handwheel backward a quarter turn, and try again.

Adjust tension if stitches are loose or tight

Tension controls how tight the stitch is. If the top thread is loose and bobbin thread shows on top, increase tension by turning the tension dial to a higher number. If the top thread is too tight and bobbin thread shows underneath, decrease tension by turning the dial to a lower number. Make small changes — one number at a time — and test on scrap fabric after each change.

Most tension problems are actually threading problems, so check that the thread is seated between the tension discs before you adjust the dial. If you have adjusted tension and stitches are still wrong, rethread the machine completely, including the needle. Tension dials are straightforward to change back, so do not be afraid to experiment on scrap fabric.

Frequently Asked Questions

Why does my thread keep breaking?

Thread breaks when the needle is bent, inserted backward, or the thread is not threaded correctly. Check that the needle is straight and inserted the right way, then rethread completely with the presser foot raised. If thread still breaks, the needle may be dull — replace it with a new one. Old or cheap thread also breaks more easily, so try a different brand if you have one.

What does it mean when stitches skip?

Skipped stitches usually mean the needle is bent, inserted wrong, or not pushed up far enough into the needle clamp. Replace the needle and make sure it is inserted all the way up, then rethread. If skipping continues, the needle may be the wrong size for your fabric — thicker fabric needs a larger needle.

Can I sew different types of fabric on the same machine?

Yes, but you may need to change the needle. Cotton and linen use a universal needle, but stretch fabrics like spandex need a ballpoint needle, and heavy fabrics like denim need a size 16 or 18 needle instead of a size 10. Check your fabric type and change the needle before you sew.

What should I do if the fabric bunches underneath?

Bunching usually means you are pulling the fabric instead of letting the feed dogs move it. Release the fabric and let the machine do the work. If bunching continues, the bobbin may be wound too loosely — wind a new bobbin and try again. Make sure the presser foot is down, because bunching also happens if the foot is up.

How do I know if my machine needs cleaning?

Lint builds up around the bobbin area and needle plate. If you see white or gray fuzz, use a small brush (most machines come with one) to sweep it away. Clean out lint every few hours of sewing, especially after sewing cotton or flannel. A clean machine sews better and lasts longer.