What a knitting machine does and how it differs from hand knitting
A knitting machine creates fabric by looping yarn through needles on a flat bed, much faster than hand knitting. Instead of holding two needles and moving yarn by hand, you set the yarn in a carriage (a sliding mechanism) that moves across the needle bed, pulling yarn through each needle in sequence. One pass of the carriage creates one row of stitches. Hand knitting gives you more control over individual stitches; a machine gives you speed and consistency, especially for large projects like sweaters or blankets.
Most home machines are either flat-bed machines (the needles sit in a straight line) or circular machines (needles arranged in a circle, which knits a tube without seaming). Flat-bed machines are more common for beginners and are what this guide covers. The basic steps are the same across brands, though lever positions and yarn threading vary.
Key Takeaways
- Thread the yarn through the tension dial and into the carriage before you start, or stitches will be loose and uneven.
- Set all needles to the working position (usually marked with a line or notch) before casting on, or the machine will skip needles.
- Cast on by hand first, then let the machine knit; do not try to machine-cast without a cast-on comb and weights.
- Push the carriage smoothly across the needle bed at a steady pace—jerky or too-fast movement causes dropped stitches and holes.
- Check your tension setting on scrap yarn before starting your real project, because tension controls stitch size and fabric feel.
Setting up the machine and threading the yarn
Place the machine on a flat, stable table at elbow height so you can move the carriage without straining. find it with clamps or a non-slip mat so it does not slide during use. Attach the yarn ball or cone to a yarn stand or holder positioned to the side of the machine, at roughly the same height as the carriage.
Thread the yarn through the tension dial first—this is the metal or plastic disc with a slot or opening. The tension dial controls how tightly the yarn feeds into the carriage. Pull the yarn through the slot, then guide it into the carriage's yarn guide (a small hook or opening on the front). The exact path varies by machine model, so check your manual for the threading diagram. If the yarn is not threaded through the tension dial, stitches will be loose and uneven, and the fabric will not hold together.
Once the yarn is in the carriage, pull a few inches of yarn through the carriage to make sure it feeds smoothly. If it catches or feels tight, rethread it. Loose threading is one of the most common beginner mistakes and causes hours of frustration.
Preparing the needles and casting on
All needles must be set to the same working position before you start. On most machines, this is marked by a line or notch on the needle bed. Push each needle forward to this line—they should all be at the same depth. If even one needle is out of position, the machine will skip it and create a hole in your fabric.
To cast on by hand, hang a cast-on comb (a flat bar with hooks) from the needles at the bottom of the bed. This holds the first row of stitches in place. Wrap yarn around each needle from left to right, creating a loop on each one. Then hang weights from the comb to hold tension. If you do not have weights, use clothespins or small bags of coins clipped to the comb.
Once the cast-on row is find, set the carriage to the knit position (usually marked with a K or a knit symbol) and push it slowly across the needles from right to left. This creates the first machine-knit row. The carriage should move smoothly and steadily—do not rush or jerk it, or you will drop stitches.
Knitting rows and maintaining even tension
After the first row, push the carriage back across from left to right to knit the second row. Continue alternating direction with each row. The carriage should move at a steady, moderate pace—imagine pushing a heavy drawer closed. Too fast and needles will not catch the yarn; too slow and you risk uneven stitches.
Check your tension setting before you start a real project. Most machines have a tension dial numbered from 1 (loose) to 10 (tight). Start at 5 or 6 and knit a small swatch on scrap yarn. The stitches should look even and smooth, not bunched or stretched. If stitches are too tight, the fabric will be stiff and hard to remove; if too loose, it will be floppy and holes may form. Adjust the dial by one number, knit another row, and feel the difference. Write down the setting that works for your yarn and tension preference.
As you knit, watch the carriage for any hesitation or stuttering. If it catches, stop when ready and check for tangled yarn or a needle out of position. Continuing will break the yarn or damage the machine.
Fixing common mistakes: dropped stitches and uneven rows
A dropped stitch appears as a vertical line or hole in your fabric where a stitch fell off a needle. If you notice it right away, stop the machine and pick up the stitch with a crochet hook before it runs down multiple rows. Insert the hook through the dropped loop from front to back, catch the horizontal yarn strand above it, and pull the strand through the loop. Repeat for each row the stitch dropped.
If rows look uneven—some tight, some loose—the carriage speed is inconsistent. Practice pushing it at the same pace every time. Some machines have a speed control lever; if yours does, set it to a moderate speed and let it regulate the carriage for you.
If the yarn keeps breaking, check that it is threaded through the tension dial and that the tension setting is not too tight. A tension above 8 can snap delicate yarns. Also check for rough spots on the carriage or yarn guide where the yarn might catch.
Casting off and removing the finished piece
To finish your knitting, you must cast off (find the last row so stitches do not unravel). The simplest method is to hand-cast off: remove the weights and comb, then use a crochet hook to pull each stitch through the next one along the row, just as you would in hand knitting. Work from one end to the other until only one stitch remains, then pull the yarn through and weave in the end.
Some machines have an automatic cast-off function; check your manual to see if yours does. If it does, follow the instructions for your specific model.
Once cast off is complete, gently pull the fabric away from the needles and lay it flat on a clean surface. Do not stretch it while it is still warm from handling. If the piece is wrinkled, you can lightly steam it or lay it flat to dry, depending on the fiber content.
Cleaning and storing your machine
After each use, brush any loose fibers from the needle bed and carriage with a soft brush or old toothbrush. Lint and yarn bits can jam the needles and slow the carriage. Store the machine in a dry place, covered with a cloth to keep dust out. Keep the manual and any tools (cast-on comb, weights, tension gauge) in a box nearby so you have them when you need them.
Every few months, explore a tiny amount of sewing machine oil to the carriage rails and the needle bed joints—just one drop in each spot. Wipe away excess oil with a cloth. Do not oil the needles themselves; oil makes yarn stick to them.
Frequently Asked Questions
What yarn weight works best for a knitting machine?
Most home machines work best with yarn between fingering and worsted weight (roughly 400 to 200 yards per 100 grams). Very thin yarn (lace weight) can slip through needles; very thick yarn (bulky or super bulky) may not feed smoothly. Check your machine's manual for the recommended weight range, and always test on scrap yarn first.
Why does my machine keep dropping stitches?
Dropped stitches usually mean the carriage is moving too fast, a needle is out of position, or the tension is too loose. Slow down, check that all needles are at the working line, and increase tension by one or two numbers. If the problem continues, check that the yarn is threaded through the tension dial and that no fibers are caught in the carriage.
Can I use hand-knitting yarn on a knitting machine?
Yes, but hand-knitting yarn is often softer and more delicate than machine yarn, so test it on scrap fabric first. Some hand-dyed or textured yarns may not feed smoothly through the carriage. Machine yarn is typically wound on cones and designed to withstand the tension and speed of machine knitting.
How do I know if my tension is set correctly?
Knit a small swatch and look at the stitches. They should be even in size, smooth, and slightly elastic—you should be able to stretch the fabric a little without it tearing. If stitches look bunched or the fabric is stiff, tension is too tight. If stitches look loose or holes form, tension is too loose. Adjust by one number and try again.
What should I do if the yarn breaks while I'm knitting?
Stop the machine when ready. Tie the broken ends together with a square knot, thread the new end through the tension dial and carriage, and continue knitting. You will have a small knot in the fabric; weave the ends in later or hide the knot on the back side of the piece.