WORK IN PROGRESS
Machine knit hems 2 and Machine knit hems 1 discussed picking up stitches to form hems across full needle widths.
“Wisteria” meets hems introduced small hems in combination with short rows.
Slip stitches may be formed and brought to the front of the knit; they tend to get elongated in proportion to the number of rows for which they are held.
Single bed tuck and slip stitch fabrics 2: adding color presents some of the visualizations for and distortion of horizontal stripe patterning resulting from frequent color changes.
Slip stitch patterns with hand-transferred stitches, single bed looks at methods to bring the elongated slipped stitches to the front of the knit.
With a start on the left and an even number of rows in each horizontal stripe allows for knitting away from and back to the color changer consistently.
The first sample, plotted in a spreadsheet,
is purely a hand technique, no programmed clues, but a custom needle tape can be colored in to aid in correct needle selections.
In knits where stitches need to be held and not worked, one method used is to knit specific stitches back to the A position.
If using the color changer, each stripe must be formed by an even number of rows with selections from left to right.
The repeat is 40 rows in height. I chose to continue the hems on both sides of the swatch.
Following the chart, knit 8 rows with color 1, end COL
COL: change color to 2, using ravel cord knit through stitches marked with white columns in the chart back to A across the row (1)
knit 4 rows, 9-12
return to COL, hang a hem on every needle
COL: change to color 3, knit 4 rows, 13-16
return to COL
COL: change to color 2
knit 4 rows, 17-20, return to COL
hang a hem, I chose to pick up the stitches in the row below the hem color (images 2 and 3), bringing needles out to E as I worked across the row, watching for any dropped stitches on each side of the ravel cord
COL: change to color 1, using any preferred tool, reach behind the floats formed in the areas of skipped stitches, lift the stitch held by the ravel cord back onto the needle bed across the row (3), knit 8 rows with color 1, 21-28, end with COL
COL: change to color 2, repeat the process for the alternate groups of needles, with color changes and action occurring on rows 29-32, 33-36, 37-40.
Another method for creating the long stitches on the knit side is to use the short row technique, setting the knit carriage for holding.
Again, knitting is planned to start from the left side, using each color for an even number of rows. Three stitches were added beside the needle tape markings on the right.
Plotting the actions in a spreadsheet, and planning knit with no held stitches on either side. Symbols, numbering, and note keeping can be developed as preferred in personal DIY.
During knitting, keep an eye out for stitches on either side of those placed out to hold; they may have a knack for dropping.
After the choice of base knitting, begin the pattern with COL and color 1
Knit 4 rows, returning to the left, hang the hem on every stitch
COL change to color 2, knit one row to the right
COR set knit carriage to hold, push first groups of 3 needles out to hold as indicated with the white cells in the chart, and the blue ones on the needle tape, knit back to the left
COL change to color 3, continue with the machine set to hold, knit 4 rows
COL change to color 2, cancel hold, knit 2 rows
COL change to color 1, knit 4 rows, hang hem on every needle
COL change to color 2, knit one row to the right
COR set the knit carriage to hold, push the alternate groups of 3 needles out to hold as indicated with the white cells in the chart, and the blue ones on the needle tape, knit back to the left
COL change to color 3, continue with the machine set to hold, knit 4 rows
COL change to color 2, cancel hold, knit 2 rows
COL change to color 1, knit 4 rows, hang hem on every needle
Continue in pattern.
Using short rows: in a spreadsheet, the shapes can be planned in a variety of ways. Initially, I drew from left to right.
Arrows along the sides of the designs or even along them can help plan the proper sequences of carriage movements.
The top is not across as many cells as the bottom view, and serves only to plan/illustrate transitions to shaping triangular segments to maintain straight side edges.
The image mirrored horizontally as it was knit, working from right to left.
A needle tape was marked in groups of 12 to aid in maintaining stitch counts, the result of “winging it”.
Although the piece may be started from either side, the top half cannot begin on the same side, or the knit will be biased as seen at the bottom of the swatch.
Rayons of different thicknesses and plies were used in the test swatches.
The held shapes were then reduced to 8 stitches in width.
When the chosen number is completed across the needles in work, knit 5 rows of contrast, hang the stitches from the first row of the same color on every needle, knit one last, 6th row to close the hem, return to shaping short row shapes with alternate color(s).
A chart with a visualized graphic usable to duplicate my swatch and knitting direction with elements that can be varied in building DIY designs, changing the scale of segments, the number of held rows on the same groups of stitches, the resulting eyelets, etc:
A custom needle tape can be marked with as many or as few clues as preferred.
Quicker knitting: the same shapes with the rows of contrast in plain knit, skipping the formation of the hems
Ruching has been the term used to refer to knits where stitches are hooked up periodically on subsequent rows, essentially forming small hems.
More information may be found in the posts:
Ruching 2: more working with stitch groups
Ruching 1: fern “pretender” and more
The 16X18 repeat is planned in a spreadsheet, intended for use with the knitweaving technique.
The red arrows indicate stitches that are hooked up over each group of floats.
Knitting planned on a multiple of 16+3 will center the design:
the 16X18 PNG
knit on 52 stitches
Combining small hems with ladders created by leaving needles out of work: the plan had initially been to try the technique in a single color.
Color changes make it easier to pick up the proper stitches across the work; the result was a surprise worth playing with further.
The repeat evolved, beginning with different yarns, and with stitches at first hooked up after 4 rows, quickly changed to after every 6.
The germ of the idea, sketched in a spreadsheet, was planned for use on multiple of 18X11 stitches and 12 rows 
An adjusted repeat, worked on a multiple of 18X11 stitches and 16 rows.
Color changes are now planned after every 8 rows knit.
Stitches are picked up and paired on matching color stitches before the next stripe.
Arrows indicate areas for the small hems; the bottom ladder is picked up in each group, hooked on to the left for color 1, on the right for color 2.
The second color here was chosen for added contrast. The swatch began with hooking up after 6 rows; the depth of the small hems was then increased to 8 rows.
The new colorway and hem depth make the secondary shapes and textures more noticeable.
Hem “pretenders” evocative of some holding techniques as well, can be formed using slip stitch. The purl side will form floats in any areas left without pixels in the programmed repeat.
Revisiting double bed knits with stitch transfers between beds shared this repeat, knit using the tuck setting, with stitch in the all white columns moved down to the ribber.
A similar design that meets the 24 stitch punchcard width convention using slip stitch to form automatic folds, 24X16

was tested on 66 stitches, with all knit side borders that form ruffles along both edges. 
The repeat was altered slightly in width and with the intent of producing straighter appearing side edges. It began with a 13X10 PNG,
in half drop, 26X20,
and knit on 63X20, with added borders, marked with orange cells, planned to catch the yarn in areas with blocks of all white cells on each of the corresponding rows.
If there is a personal preference for knits with lots of floats, the purl side can be presented as the public one. 