Wednesday, February 15, 2012

ChemKnits QR Code

This was a fun little project, but I have to start off by saying that I am having troubleshooting issues with the knit QR code. My camera currently does not recognize it as a QR code at all. I know my chart is correct since that works. I decided to go ahead and publish this project anyway because the design is pretty cool. If you have any suggestions for troubleshooting this design, please let me know!

QR code generated at

  • 1 ball KnitPicks Chroma Worsted in Galapagos (CC - 5 g consumed)
  • 1 ball KnitPicks WOTA Coal (MC - 11 g consumed)
  • Size 3 knitting needles
  • Gauge - Not improtant for this project
The Chart
29x29 sts

The Pattern
  • Cast on 35 sts in MC
  • Purl (P) 1 row
  • Knit (K) 1 row
  • Odd Chart Rows (WS): P3 sts, work 29 sts of chart (p wise), left to right, P3
  • Even Chart Rows (RS): K 3 sts, work 29 sts of chart (bottom to top, right to left), K3
  • Continue working chart, knitting on even RS and purling on odd WS rows with a 3 stitch border on either side.
  • K 1 row
  • P 1 row
  • Bind off K wise.
  • Block and weave in all loose ends.
Now I cannot take credit for making a QR TAG out of yarn, I found a picture of a crochet QR tag on flickr. I tested this image, and Google Goggles does recognize it as a bar code.
What could the problems be?
  • I may have made a mistake in the knitting. I plan to overlay the chart over the image of the knit QR code to check.
  • The stitches may be too small. Maybe they're too uneven, or maybe I need to make each individual pixel bigger.
  • Maybe the yarn is too fuzzy, and the stitches do not have enough definition.
My plan was to make a laptop skin for my chromebook that had the knit ChemKnits QR tag on the back. Thankfully, this only took a morning to knit, so it is not a wasted experiment.

Abbreviations Used in this pattern:
Kfb - increase by knitting into the front and back of a single stitch.
M1 (Make 1)- increase stitch by picking up yarn between two stitches, twisting and knitting.
K - knit
P - purl
I-cord - knit stitches on dpn's without ever turning the needle (effectively knitting in the round with a small number of stitches.)
SSK - decrease by slipping two stitches then knitting them together. Alternatively, you could slip one stitch, knit one stitch and pass slipped stitch over.
K2tog - decrease by knitting two stitches together.

This knitting pattern was created by ChemKnits for your personal or charity use. You are not to sell, to distribute or reprint this pattern without the permission of ChemKnits. © 2012 ChemKnits