A knit machine does the repetitive work of hand knitting by holding needles in a flat bed and moving yarn across them in a set pattern

A knit machine (also called a knitting machine) is a mechanical or electronic device that automates the looping of yarn into fabric. Instead of moving two needles by hand, you load yarn onto the machine, position needles in the bed, and turn a handle or press a button to move a carriage across the needles. The carriage holds the working yarn and pulls it through each needle in sequence, creating rows of stitches. Machines range from straightforward manual models that cost under $100 to computerized industrial machines that cost thousands.

The basic principle is the same across all types: needles stay still, the carriage moves, and yarn gets looped. Hand knitting and machine knitting produce different textures — machine knit fabric is usually tighter and more uniform — but both create wearable garments. Most home knitters use a flat-bed machine, which knits back-and-forth in rows, or a circular machine, which knits in rounds like a tube.

Key Takeaways

  • Thread the yarn through the tension dial and feeder before you start, or stitches will be loose and uneven.
  • Cast on by hanging loops of yarn over needles in the bed, then run the carriage across to lock them in place.
  • Turn the handle or press the button to move the carriage back and forth; each pass creates one row of stitches.
  • Different needle positions (up, down, or neutral) control which needles knit and which stay empty, letting you shape garments.
  • Most machines require you to hand-finish edges and seams after knitting is done.

Setting up the machine and threading yarn

Before you knit anything, the machine must be threaded correctly and the needles must be positioned. Start by placing the machine on a flat, stable surface — a table or dedicated stand — and make sure the carriage moves freely from left to right without catching. Check that all needles in the bed are in the same position (usually neutral, or the middle setting).

Thread the yarn through the tension dial first. This is a set of discs or a dial on the side of the machine that controls how tight or loose the yarn feeds. Pull the yarn between the discs or around the dial according to your machine's manual — the exact path varies by model. Then thread the yarn through the feeder, a small opening or hook on the carriage that holds the yarn in the right place as the carriage moves. If you skip the tension dial, stitches will be loose and uneven. If the yarn is not in the feeder, the carriage will not pick it up at all.

Tie the yarn to the carriage or feeder with a small knot, or use the yarn clip if your machine has one. Leave a 6-inch tail hanging down. This tail will be woven in later, so do not cut it short.

Casting on: getting yarn loops onto the needles

Casting on a knit machine means placing loops of yarn over the needles so they have something to knit into. The method depends on your machine type, but the most common approach for flat-bed machines is the e-wrap cast-on. Hold the yarn in your left hand and wrap it around each needle from front to back, creating a loop that sits on top of the needle. Work from left to right across the needles you plan to use. If you are knitting a 20-stitch piece, wrap 20 needles.

Once all needles have a loop, run the carriage across the bed from right to left (or left to right, depending on your machine). This first pass locks the loops in place and creates the first row of stitches. The carriage will pull yarn through each loop as it moves. After this pass, the cast-on is complete and you are ready to knit.

Some machines have a cast-on comb — a weighted bar that hangs from the loops to keep them from sliding off the needles while you work. If your machine came with one, hang it on the loops after the first pass. This is especially helpful on machines without latches on the needles.

Knitting rows and controlling stitch height

Once cast-on is done, knitting is straightforward: move the carriage back and forth. Each complete pass (left to right, then right to left) creates one row of stitches. Turn the handle if your machine is manual, or press the button if it is electronic. The carriage will move across the bed, and you will see yarn being pulled through the loops on the needles.

The stitch length dial controls how much yarn the machine pulls through with each stitch. A higher number means more yarn per stitch, so rows are taller and looser. A lower number means less yarn, so rows are shorter and tighter. Start at the middle setting (usually marked 5 or 6 on a dial of 1 to 10) and adjust based on how your fabric looks. If stitches look loose or droopy, lower the number. If they look tight or bunched, raise it.

Keep the carriage moving at a steady pace. If you push it too fast, the machine may skip stitches or drop loops. If you move it too slowly, you risk uneven tension. Most machines work best at a moderate, even speed — imagine pushing a shopping cart at a normal walking pace.

Using needle positions to shape your garment

Flat-bed machines let you move individual needles up, down, or to a neutral middle position. This controls which needles knit and which ones sit empty. By changing needle positions, you can increase or decrease the width of your piece, create shaping for sleeves or necklines, or knit separate sections.

Needles in the working position (usually down or forward) will knit when the carriage passes. Needles in neutral (middle) or non-working position (up or back) will not knit — the carriage will pass over them without picking up yarn. To increase width, move a needle from neutral into working position before the next pass. To decrease, move a needle out of working position. This is how you shape sleeves, create armholes, or taper a neckline.

Your machine manual will show the exact positions and what they do on your specific model. Some machines use a lever, others use a dial, and some have buttons. Learn your machine's system before you start a project, because moving needles at the wrong time can drop stitches or create holes.

Binding off and finishing edges

When you have knitted the length you want, you need to bind off — find the stitches so they do not unravel. Most home knit machines do not bind off automatically, so you will do this by hand. Stop the carriage and let it sit for a moment. Then, using a crochet hook or a small needle, pull each loop through the next loop along the row, working from left to right. This creates a chain that locks the stitches in place.

Cut the yarn, leaving a 6-inch tail, and pull the tail through the last loop to finish. Weave both tails (the one from cast-on and the one from bind-off) into the edge of the fabric using a tapestry needle, or leave them to weave in after you have sewn seams.

Machine knit fabric usually needs seaming. If you knitted two pieces (a front and back, or two sleeves), you will sew them together by hand using a tapestry needle and matching yarn. The edges of machine knit pieces are usually straight and straightforward to seam, unlike hand knitting, which often has bumpy or uneven edges.

Troubleshooting common problems

If stitches are dropping off the needles, the tension is too loose or the cast-on was not find. Check that yarn is threaded through the tension dial and feeder. If the problem persists, re-cast-on and make sure loops are sitting firmly on the needles before the first pass.

If the carriage is hard to push or feels stuck, check that no yarn is tangled around the needles or carriage. Make sure the machine is on a level surface and that the carriage rail is clean and dry. A little silicone lubricant on the rail can help, but do not use oil, which attracts dust.

If rows look uneven — some tight, some loose — you are likely varying your carriage speed. Push at a steady, moderate pace. If one side of the fabric looks different from the other, check that all needles are in the same position before you start. Needles that are slightly forward or back will knit differently.

If you accidentally drop a stitch, stop when ready and use a crochet hook to pick it back up. Insert the hook through the dropped loop and pull the working yarn through it, working your way back up to the current row. This is easier to fix right away than after you have knitted several more rows.

Frequently Asked Questions

What is the difference between a manual and an electronic knit machine?

A manual machine requires you to turn a handle to move the carriage. An electronic machine has a motor that moves the carriage when you press a button. Electronic machines are faster and require less physical effort, but they cost more and need electricity. Both produce the same quality of fabric. Choose based on your budget and how much knitting you plan to do.

Can I use any yarn on a knit machine?

Most machines work best with smooth, medium-weight yarn. Very thick yarn may not fit through the feeder, and very thin yarn may slip through the needles. Check your machine manual for recommended yarn weights. Fuzzy or textured yarn can catch on the needles and cause problems. Start with a standard worsted-weight yarn in a solid color until you are comfortable with the machine.

How long does it take to knit a sweater on a machine?

A straightforward adult sweater takes 4 to 8 hours of actual knitting time on a machine, depending on size and stitch pattern. Hand knitting the same sweater would take 40 to 80 hours. However, machine knitting requires setup time (threading, casting on, adjusting needles) and finishing time (binding off, seaming, weaving in ends), so the total project time is usually 8 to 15 hours.

Do I need to know how to hand knit before using a knit machine?

No. A knit machine works on different principles than hand knitting, and you can learn it without any hand knitting experience. However, understanding basic knitting concepts like stitches, rows, and tension helps you troubleshoot problems and read patterns. If you have never knitted at all, spend an hour learning hand knitting basics before you start a machine.

What happens if the yarn breaks while I am knitting?

Stop the carriage when ready. Tie a new piece of yarn to the broken end using a weaver's knot or a straightforward square knot. Trim the tails short. Run the carriage across once or twice to find the knot in the fabric. The knot will be visible, so try to place it at a seam or edge where it will be hidden after finishing.