EEW Yarn Counter

The max length is 99,999.9 yards or metres, which is 56 miles or 100 km!

Increase the number of wraps.
Wrap the yarn completely around the disk. If it still slips, add another wrap. For very thin yarns (over 80 WPI), you may need up to five wraps.

Check for yarn fluff on the sensor.
Pull outward on the yarn disk to remove it. Underneath, you’ll see a small black sensor. Use a brush or compressed air to clear away any fluff around the sensor.

Add more distance in your setup.
Increase the distance between the yarn counter and both the yarn source and destination. The extra length helps absorb jerky motion and reduces slipping on the disk.

Improve grip for thin yarns.
For extremely thin yarns, you may want to lightly roughen the disk surface with sandpaper or a knife to give the yarn more traction.

The EEW Yarn Counter measures yarn length by counting the number of disk rotations and using the known circumference of the disk to calculate the total length. Because the yarn slightly increases the effective diameter of the disk—by about half the yarn’s thickness—the WPI setting is used to make a small adjustment to the diameter and improve measurement accuracy.

You can adjust the yarn guides to keep the yarn closer to the center of the disk. In some setups, it may help to move the yarn’s source and destination farther from the counter. Adding extra pegs or rings can also reduce yarn bounce and ensure smoother feeding into the EEW Yarn Counter.

If you prefer not to use this feature, simply leave the setting at the default 80 WPI. For thicker yarns, the counter will read slightly shorter than the actual length—for example, about 6% shorter with an 8 WPI yarn.

If the yarn is getting wedged between the wire guide and the box, rotate the wire guide so it points straight up.

The counter continuously increases the length, regardless of direction. User research found limited demand for reverse counting, and adding it would have made the unit more expensive.

A loose keypad ribbon cable can occasionally cause this behavior. Open the unit as you would for a battery change, remove the ribbon cable from the circuit board using fingers or needle-nose pliers, and reseat it in the connector.

You can print a 3D-one case by downloading files we have created. Here is a list of places to have the parts made and a video to explain the case and how best to use it.