GroundForge

Bobbin Lace Diagrams : threads from pairs

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Help Intro

Experiment with Bobbin Lace Grounds

Varying stitches and reshaping a downloadable diagram may render a myriad of variations for a single pattern. Experiment and play around with the hundredths of provided patterns or add your own. Even when reinventing wheels, your own discoveries can bring great joy.

The tiles page generates diagrams and guides you through most important first steps. Help pages in the side bar explain more in-depth subjects. The following section discusses a versatile traditional pattern.

Add foot sides to a small strip of a (symmetrical or not?) pattern to get a Milanese-like braid.

The last section of the page refers to a screencast that walks through some important functions.

“Binche Kompakt” feature 31

Feature 31 in the DKV pattern “Binche Kompakt” was previously published in “Kant” issue 2000/2. Anne-Marie Verbeke-Billiet puts four variations of sometimes lost Binche grounds in historical context.

Nowhere a strong close up for the challenging ground. That asked for a thread diagram generated out of a doable interactive pair diagram: with / without foot sides, see also the notes on patch sizes for the latter.

Dropping stitches in the interactive pattern and using turning stitches can render the variations below. Note the one (center) or two (top and bottom) grey symbols in the upper diagrams, they represent the dropped stitches. Below an educated guess on the numbers of possible variations.

Methods to drop stitches

The screen shots above dropped stitches by replacing ctc with -. This can have unexpected results such as more stitches disappearing and/or the algorithm switching pairs before making another stitch. The latter effect causes weird thread diagrams. It might be better to go to the advanced section. Apply the blue changes below for the second and last variant above. Apply the red changes for the third variant.

Number of variations

The hard copy catalogue “Viele gute Gründe” by Ulricke Voelcker Löhr has 28 combinations of stitches for the second variant (5,6,17-23,26-36,93,103,132,139,140 in the B3 series), 3 each for the two last variants (12-14, 106-108) and 7 for the first (25,71-76). That adds up to 41. Multiplied with the first 22 of B4.2 (that surrounds the six-pair element) gives 902 documented thread diagrams for this base pattern.

The stitch combinations for the second variant might be pretty complete for symmetrical options and traditional stitches. The first variant has more stitches than the second so it must also allow more stitch combinations. The third and last variant also must allow for more than three stitch combinations each. Only sample 33 and 106 of B3 have unorthodox stitches that twist just one pair or none. Making more use of these stitches or drop more stitches allows even more combinations. All in all the number of possibilities may well run into the thousands.

Screen cast

A screencast (2 minutes / 37 MB) plays the following script:

  • 0:00 start with this help page
  • 0:00 follow “with
  • 0:05 drop center stitch: ctc -> -
  • 0:10 wand generate new diagrams
  • 0:18 reload web page : restores original diagrams
  • 0:19 scroll down to advanced section
  • 0:22 drop center stitch: 353,153 -> -5-,5-5-
  • 0:35 wand : different prototype, same pair/thread diagram
  • 0:41 follow (i)
  • 0:44 follow “stitches
  • 0:45 copy edge stitch
  • 0:49 previous browser tab
  • 0:52 paste the copied stitch and edit into turning stitch
  • 1:19 link
  • 1:23 reload web page
  • 1:26 current pattern is reloaded
  • 1:27 create favourite
  • 1:33 “animate” pair diagram
  • 1:36 increase thread diagram container (alternative: )
  • 1:38 scroll down to get thread container back into view
  • 1:42 toggle thread color when tooltip displays thread number
  • 1:45