My original posts on exploring automating shell shapes were written in my 910 electronic days using mylar sheets in early 2013: Thinking of modules: a shell “diary”
“Automated” shell shapes
The repeat produced a visually successful fabric. I received a question on FB about executing the shells on a punchcard machine, and another on how I “come up with these things”. The repeats are not quick inventions, they take working out, sometimes through several first failed attempts.
Since the early posts posts my approach to explanations has changed as I became increasingly familiar with newly available software and updates, and a 930 and img2track made downloading pngs possible in a new way.
iPhone cameras make it far easier to “shoot and share”.
My original mylar repeat entered as separate programs in days when each mylar sheet was precious. 
The 910 in my default setting produced the “image’ as drawn on the knit side of the resulting fabric. The post was written prior to my tiling the repeats as a matter of routine to check their alignments. Doing so would have shown a couple of missing pixels, and pointed to any other errors in filling in mylar squares.
All transfers were made in the same direction.
The start of the visualizing the shell shapes with errors later observed and resolved. 
As always, ideas need error-proofing and refining, easier done in a chart if possible prior to any actual knitting.
This type of design begins to address an uninterrupted repeat on the electronic on a limited stitch count, whether all in a single direction or reversing every other full row of shapes. It is applicable to joining several punchcards, but only on single 24 stitch widths.
There are a number of changes to make if it is necessary to get the pattern to reverse direction in alternate rows of completed shapes in a brick layout.
My first tests were planned with knitting moving only from left to right. To execute such a pattern on a punchcard KM, the repeat needs to be altered from 14X2 to 12X2 in width. This is the start of sorting that out:
Attempts to visualize holding can happen in spreadsheets, documents, image processing canvases, or even simply on graph paper, moving/ “drawing” back and forth across the cells mimicking carriage movements and marking them accordingly.
Large staggered repeats can be programmed in electronic models
All shapes are limited in terms of the width of the repeat occurring across the number of available needles on any machine.
Some previous posts on electronic knitting such repeats:
Holding/short rows: hand tech to chart to automating with slip stitch 1
Ayab: short rows automated with slipstitch
A return to short row shapings: bumps and slits
The 910 produced the design as programmed on the knit side. On the punchcard machines, the image-as-drawn is produce on the purl side.
Lettering is likely the most familiar instance where mirroring is required for punchcard machines to produce it correctly, a consideration here as well. 
The 930 automatically mirrors downloaded motifs, if direction matters, as in these samples, either mirror the design horizontally prior to saving the png for download to the machine, or use the mirror button selection on the operation panel after the download.
I find it easier to fill in the shapes in the direction I wish to have them appear on the knit side.
An attempt at a continuous 24 stitch repeat, with the same technique applicable to electronic models while avoiding programming 2 different repeats and having shapes in different colors across full repeat segments.
This proved to be a fail.
With larger gaps between changes, the yarn may be changed every X rows manually, making an easy fix to breaking rules for when using the color changer.
The next step is working out 12 stitch repeats with patterning needles to be brought in and out of holding position as well. The options on a punchcard would include 8, 12, and 24 stitch motif widths.
The machines will be set to slip in both directions throughout, end needle selection must be canceled. This method is not executable easily on km models that do not offer that option, electronics use KC II.
Note that machines sold in Europe in comparable models may have different names for the same functions, ie. SM in some instances is the equivalent of KC II, whereas in US it signifies a Single Motif.
Punchcard settings for end needle selection: 
I do not have any blank punchcards to test a repeat on at the moment.
The 930 essentially behaves the same way by producing the entered pattern on the purl side, making it possible to use the unaltered final designs.
The starting 24 stitch brick repeat 
Other shapes have previously been explored using slip stitch, and later, slip stitch combined with holding. A brief return to previous turns at holding and slip stitch used to create alternating color shapes: in 2013/02/12/an-entrelac-pretender/, a continuous slip stitch only card was used. The result on the knit side,
while on the reverse floats between alternating shapes are the norm 
Results with no floats are found in the swatches in the posts, two designs are programmed alternately upon completion of each full row of shapes : 2013/02/21/entrelac-pretender-2/
and a larger, 24 stitch motif used on a punchchard machine as a continuous repeat : 2013/04/11/entrelac-pretender-3/
Returning to the goal of the moment: to knit the shells in a float-less way, using a technique executable on a punchcard machine as well. The repeat as initially drawn is 28 rows high.
If the punchcard or the electronic advance every row with each pass of the carriage, the alternating shifting blocks of the repeat will be selected in full with every 28 passes.
In this instance, one returns to the start of the design repeat every 28 rows. Identical shell full shapes are created across the knitting rather than the shifting shapes desired in alternating full row repeats.
Separating the 28-row repeat into 2-14 row ones.
The 12 stitch repeat is tiled X2 horizontally, beginning with a half shape, 
while here the repeat for all full-size shells is planned, 
Marking up the needle bed with water-soluble markers or pencils helps track placements of repeats across the desired number of needles in work: dark lines indicate placement beginning with the mark for half a repeat to maintain straight side edges on the finished piece. Red lines mark the placement of the stitches when they are moved to the left in order to knit the full shells across the bed. 
On a 930, the image will be knit in the direction of the pattern as drawn on the knit side, as it would be on a punchcard machine.
To begin knitting the shells with COR, since the pattern is fixed on the needle bed, one option is to move the work in one direction or the other on the needle bed using a garter bar, so that the knitting is in the proper place for the desired anticipated needle selection. This was easier in my own mind than reprogramming the pattern repeat for each full row of shells whether by entering a new download or altering placement using the position option at the start of each row. One of my first working repeats amended later in several steps is shown here mirrored in black and white
Visualizing the process on the needle bed
Scaling the image to render it a bit more legible:
The machine will be set for slip stitch in both directions and holding. End needle selection is canceled.
The first preselection row is from left to right. Every needle will be preselected and will knit every stitch for the first 2 rows in the desired shell color.
Color changes are made manually.
At the completion of a row of shells, its corresponding color ends on the left side, a free pass is made, returning to the right. Knitting with the new color for the alternate groups of shells begins again on the right side.
After the first 2 all knit rows, as the carriage works its way back to the right on the following pass, preselecting will occur for a decreasing number of stitches. This is the first-row holding selection when using the above repeat:
Moving stitches on the needle bed avoids having to program separate repeats after each full stripe of shells.
Beginning piece with half a shell on each side: all but the first 6 stitches are brought out to hold. When more than the single needle is selected at the top of the first half-shell (6 sts to start, 1 at the end), COR: bring the next group of 12 stitches to the left into work, knit to left.
COL: bring original 6 needles out to hold. Bring into work any needles not selected in the group of 12 into work as well.
Continue knitting, repeating the process across the bed.
On design row 14 of the last half-shell remove work on a garter bar.
To execute full shells across the next row of shapes: using a garter bar move the work 6 stitches to the left.
Return emptied needles to A position (out of work, OOW).
With all remaining needles in B preselect the next row (1) from left to right. Cam settings need not be changed.
Change color if desired, knitting 2 rows across all the stitches.
Bring all needles out to hold except for the first group of 12 sts between red marks, and repeat the process previously described across the bed.
When the last shell is completed, design row 14, remove the work on the garter bar again, shift it 6 stitches to the right.
Push back the now emptied needles back to A (OOW).
With all stitches in the B position, make a free pass to the right, row 1 of the half shell row will be preselected, change color, continue across the pattern row as described. This yarn is far too thin but makes stitch formation easy to identify.
I used two repeats side by side to eliminate having to consider and choose the position option on the 930 needle bed, resulting in having the pattern centered in each 24 stitch fixed segment of needle selection.
Using a needle tape for punchcard machines electronic models make transitions when using published or DIY 24 stitch designs.
It is possible to add all knit rows or even patterned ones between shell rows. On an electronic KM with 2 carriages available, adding a FI band would be simpler than trying to manage to change cam buttons in addition to the other number of steps already involved with the slip stitch and holding combination along with moving the knit on the needle bed.
Contrasting color row stripes can be programmed by adding 2 or more/ even number rows of all black squares (or punched holes) at the top of each 14-row segment of the final repeat. Reverse shaping of shells appears to not be necessary to avoid biasing on my limited tests. The proof of concept swatch:
I was too aggressive with clipping yarn ends on the left side, especially while in the process of changing colors, not ever a good idea. Automating the pattern fully on electronic models using only slip stitch patterning is possible. The length of such patterns grows exponentially in proportion to the size of the repeats. Reviewing errors in the beginning concept 
An attempt to visualize the placement of the shape variations in the finished piece using the shell motifs beginning with the shapes created in order to create a straight side edge
Redrawing the pattern for a 36 stitch test. On the left is the drawn image of the pattern, on the right the mirrored image for downloading to my machine to produce it in the desired direction. Much of the time is invested in developing and testing the final and correct image for download, the knitting that follows that is fairly quick. My repeat is 36 stitches wide, 98 rows high
COR: knit a base row in color one from right to left
COL: KCII (no end needle selection) to right, the only needles preselected will be those corresponding to the programmed black squares, the remaining will be in B position. Knit to the right.
COR: set the machine to slip in both directions. Knit slowly and evenly. All needles in work on the bed must be cleared with each pass of the carriage.
Continue in pattern across the bed, checking that all stitches are knitting off properly.
When all needles are preselected, change colors for the next set of shells. These rows create the base for the next group of shapes. If a stripe or other pattern is wanted regularly, those rows are best added to the programmed pattern itself.
The automated test swatch: 
Preserving the 3D texture relies on using yarns with “memory”, ie wool and avoiding aggressive blocking. Using thinner yarns makes the stitch formation more evident. Hard pressing, in this case, knit using acrylic yarns, flattens the fabric considerably, and often, permanently. Both the hold/slip (top) and fully automated swatches (bottom) are shown.
2023: a screen grab from the shell charts was cropped to its outline, opened in ArahPaint, and using the program’s tool “guess weave from grid“, the 36X98 png was obtained with a few mouse clicks,
Isolating like modules and looking for any differences in each of them to prepare for a larger number of repeats across the needle bed in each half of the design 
There are several methods for securing yarn ends both during and after knitting in the final pieces using these techniques. Testing such methods on swatches is the best way to determine what works for yarn and colors used as well as our own personal preference.
The pattern width may be adjusted to create considerably larger shells if desired. Punchcard knitters are limited to 8, 12, and 24 stitch repeats. For them, this would be the maximum size, including an added number of rows for contrasting color stripes, in this instance 4. 
A return to the original 14 stitch repeat, illustrating a way to begin editing for an extra row in width at the bottom of the shape and ending on 2 stitches rather than a single stitch at the top
Imagining adding increases and or decreases for shaping at sides, which in turn could lead to an evaluation of switching to entrelac approaches when creating large shell shapes for similar effects. The 3D qualities and distortions are obviously missing from these illustrations.
A Prada sweater using similar shapes 
If you are interested in any large size clamshells, and intarsia appeals to you whether in hand or machine knitting, Cheryl Brunette has thorough directions for many such shapes, including 2 videos on shell shapes Part 1, and Part 2
More online inspiration using large shapes:
from a Russian blog
a hand-knit blanket from Garnstudio 
the common illustration for shaping triangular shawls using such motifs 
Similar pattern repeats are at times also referred to as scallops, fans, or scales. A “scallop” design 
a “fan”
Increments in height need to happen at sequences of 2 rows each, so the design was then doubled in height, resulting in a scaled image now 33 stitches by 46 rows in height, with a planned horizontal repeat X2 = 66. Note: the sidebar offers start and end needles are given for pattern placement on the needle bed. Sampling may occur on fewer stitches than that. Since the number of repeats programmed to add up to an even number and center alignment is chosen, the number of needles is even on each side of 0. 
In my second series of swatches, I decided to try for a smaller “circular” shape, with the repeat now measuring 15 wide by 20 high, and a planned horizontal repeat X3 = 45. If centered, the software places the odd number of needles on the right-hand side of 0. 
The wider horizontal band of all knit stitches was due to operator error, happened when I pushed back preselection an extra time, resulting in the ribber only knitting extra rows. For the sake of added clarity, I have added color to the chart below, assigning yellow and grey to all-white design areas in the pattern. The black squares are what I choose to drop. For illustration purposes, this is only a segment of the repeat. 
drop the loops, return needles to B position. At this point, since all needles are in B a modified stitch ditcher may be used for 2 passes, dropping the loops on the first pass and returning the whole series back to B on the second. 
COL: push all preselected needles back to B, as you knit back to the right the next group of white squares (yellow) in the next design row will be preselected
COL: knit to the right in order to form loops on the main bed, continue for the desired number of repeats and end as suggested for the two-color version.
At about that time I came across this image on Pinterest.
It combines transfer lace and long stitches, has characteristics that make some lace patterns unable to be reproduced on home knitting machines. Upon inspection, one will see that the number of stitches varies in different parts of the repeat. Aside from creating eyelets, the smaller triangular shapes increase in width, the fan shapes are decreased by half on their top row. Long stitches are created across all needles in work, then they are reconfigured so the center single stitch of the triangle and the center 2 stitches of the fan shape realign in the same position. The number of stitches at the start of the pattern and after the long stitches are created remains constant. 
Trying variations on inspiration sources can lead to success, failure, somewhere in between, but also increase learning and skill that will carry over into other knitting techniques, even if the results are never used for a finished piece.
I found making the transfers easier an the process more visible if I dropped one side of the ribber to the second, 17 mm. position
The ribber is set to N <– –> for three rows. On the first pass, all its needles will pick up the yarn, creating loops on every needle
With the ribber carriage alone, still set to N/N, free it, and make two passes to and from its starting side. The first pass releases the loops, the second returns it for coupling with the knit carriage. Below the long loops can be seen. My needle tape is “somewhere”, has not yet been returned to the ribber after my racking handle adventures were completed. 
Return the ribber settings to slip in both directions, and repeat the process. Dropping the ribber to the lowest position at any point can verify goings-onHere one row has been knit on the main bed only, anchoring the loops, returning carriages to the opposite side prior to starting transfers once more
A word of caution: if loops are picked up on any single row that in theory was set to slip and was to be worked on only single bed, check to make certain the tuck lever has not been accidentally brought up to the tuck position. Although tuck <– –> can serve for a free pass on the main bed, having this setting on the ribber will create loops on all needles in work 
I cast on 55 stitches 27 left, 28 right. A ribber comb and weights are required.
The zig-zag will lean slightly to one side 
If that is understood then one can make the choice of moving left or right and be off and running in the pattern, aside from the starting side or some of the other directions given in patterns or manuals. Cam buttons and patterning may be introduced as well. This is how a row of knitting might appear after racking. 
This page from the Ribber Techniques book shows fabrics knit on EON, adding tuck cam buttons into the mix and slightly different needle arrangements, varying the look of the finished knitting. 
If multiple side-by-side stitches are in work on the ribber, the half-pitch setting applies as well. When tucking is added, for increased stretch, it may be necessary to compensate for the width of the resulting fabric by casting-on on every needle and then transferring in the desired configuration between the beds. Transferring is easier done in full pitch with a return to half-pitch prior to continuing to knit. The bind-off is likely to require considerations for an added stretch as well. Slip stitch narrows the fabric. Such adjustments are usually worked out in test swatches.
By the way, the racking position indicators are slightly different in the Brother standard vs. the Brother bulky machines 
e wrapping with second yarn before moving to left 
e wrapping with second yarn prior to returning to right, completing a sideways figure 8, end stitches out to E before prior to each carriage pass 
When the required number of rows has been knit, end COR. Unravel the first stitch on the right,
Using thinner yarn for knitting after the join even if on the same number of stitches, will gather the fabric 
More on seaming and joining knits 
strips of different colors used 
The convention for joining strips of machine knitting by crocheting or latching side loops together suggest having a ladder space (white square, one or more may be used) and a side edge stitch on either side in segments of the final piece ie. afghan strips. 
When binding off at the top of the piece, the first and last stitch on either side is skipped, leaving them open so that they may, in turn, be unraveled. The easiest method if the goal is to join pairs of strips is to line up two of them side by side, unravel side stitches from the top-down, only enough rows to match the number of loops that will be latched through each other, and proceed for the length of the piece.
A partial illustration from Pinterest from an unknown source showing how the loops coming together to make shapes might be charted out: the ovals represent chain stitches, the v slip stitches, the different colors the finish of a complete strip’s edge 
Tuck lace is a fabric produced with needles out of work in combination with tuck patterning on the main bed. Patterns for it can serve as the starting point for either the center strips in double-sided loop fabrics or they can be worked in repeats with wider ladder spaces between them for a far quicker “pretend” version. This is one of my ancient swatches for the technique from a classroom demo, using the 1X1 punchcard, shown sideways to save space.
The card is used at normal rotation. Any time there are needles out of work, end needle selection is canceled to maintain patterning throughout including on end needles of each vertical strip. Tuck <– –> is used resulting in texture as opposed to simple stocking stitch and ladder fabric (center of the swatch). In the right segment, the ladder threads are twisted, in the one on the left they are not. This is what is happening: for twisted ladders on an even total number of needles have an even number in the selected pattern (4), and an even number out of work (6). This is one fabric that definitely benefits from the use of some evenly distributed weight and a good condition sponge bar. End needle selection must be canceled 
Here the stitches are arranged with an odd number in work (3), an odd number out of work (7)
I made a few items with twisted strands inspired by those seen in wovens produced by my weaving friends. I have no photos of those, failed to document my work for quite a few years. One excuse was the quality of any photos I attempted, and even back in the day, professional photographers charged $180 an hour plus model fees if used. It seemed that adding the cost of such photography to limited edition runs that were planned for sale would make the wholesale price higher than the market would bear. We all make choices based on information we have at that particular time, which was long before the recent easy-to-use photo technology.
Here a ladder space created by needles out of work is left between vertical fair isle repeats, producing a fringe in 2 colors. The design was not planned, a standard punchcard was used for the purpose of the demo. A planned repeat would have more impact. End needle selection is on, which is usual in FI, not for most patterns with either tuck or slip stitch settings combined with needles out of work, is also true here so that a vertical line on each side of the needles out of work between repeats aids in sewing the strips together. Width is limited since the fabric will be gathered by seaming and become significantly narrower and likely turned sideways. Both sides are shown. Joining could be planned to occur only at the bottom of a piece if desired, stitching lines will be less visible if thread color matches that of the yarn 
A needle in work away from the edge produces a side “fringe” followed here by felting partially, cutting the single edge stitch, and finishing the felting process
Adding thicker or multiple strands of yarns in 
Most often every other needle use is best. Here lace and pom trims are used, purchased fringes of all sorts could be applied the same way anywhere in the piece, joins to knit can be seen. 
A length of roving may be twisted in its center and applied as you knit. For a while mittens using it as a lining for warmth were popular. A video by Carole Wurst shows a method used in socks 
The thickness of the yarn chosen is of critical importance. When I first attempted to knit a version of it on my 930 I encountered problems. To start with, I kept dropping off the stitches on one side or the other. I checked the ribber alignment, proper placement of the cast on comb, switched ribbers, and carriages, and continued to have problems. After all that, the solution turned out to be simply adding another 4 stitches (2 on each bed) toward the center of the piece (I did not count). Here I used a 2/24 which obviously does not have enough body to use as an edging. The Brother equivalent for the Duo setting is half fisherman rib, where one carriage knits in one direction, tucks in the other on every needle for every 2 rows knit, while the other bed’s carriage does the same, but in opposite directions. I used 3 needles on each side rather than 2 as in the Duo repeat, starting with the first needle in work on the left on the ribber, the last needle in work on the right on the top bed. One may begin to knit on either side, but when manually setting the cam buttons lead with settings so that first stitch knits as it moves to the opposite side. Using waste yarn at the start of the piece will produce a better cast on edge for the trim. Operating from the right:
A 2/11.5 acrylic provided more of a tension adjustment challenge but made for a better fringe.
The first and last 3 stitches on either side were transferred to the top bed and bound off, the center stitches were not, allowing them to be unraveled if desired ie in case the fringe is to be folded in half. Those extra center stitches also provide a guide for cutting either down their center (bottom of photo) or on either side of them (toward the top). I found the latter method to produce a cleaner cut line
Suggestions for going wider with racked half fisherman rib on Japanese machines: begin with needle arrangement below, out of work needles can be as many as needed, set up and cast on with preferred racking position ie on 5, knit several rows in waste yarn making any adjustments needed so stitches knit are formed properly, weigh appropriately. 
Add needles on the main bed and remove one on the ribber
the edge that holds the fringe together is to be very narrow (or even added as one continues to knit) and one wishes to work on the single bed there are several options. With 4-ply and a “matching color” 2 ply I began with the top needle arrangement, and then switched to the one below it, knitting on a 4.5 mm machine. 
A permanent cast-on needs to take place in the preferred method over needles in work knit 2 rows. The stitch on the second needle from the left is going to want to stretch and tends not to be stable. To reduce that happening, there are 2 options involving the second strand of yarn. Here using a 2 ply helps serve that purpose and keeps the fringed strands closer together. The slower method is to remove the second stitch from the left on a tool after every 2 rows knit, then bring the separate yarn strand behind the now empty needle first from the right, then in turn from the left, returning the removed stitch to the machine, knitting 2 rows. I found that too slow for my patience, switched to just laying the second strand over needles before knitting each pair of rows, and decided to eliminate the out of work needle on the left side, moving the second stitch in work to its left. 
The single stitch on the far right of the chart need not be bound off. There will be 2 options after the work is off the machine. One is to unravel the single stitch column on the far right if loops are the goal, or cut it off, leaving a fairly good trimmed edge here, and what, in this yarn, appeared to me to be an acceptable edging. The 2 edge stitches on the left in my swatch did roll, making a very tight edge. Adjusting the tension used to change that effect would be another choice. Yarn use and personal taste contribute to a range of “successful” results when using any of these techniques. 
At the top of the piece, I transferred and doubled up the stitches on left, bound them off, and the yarn end(s) can be woven back into the cord. 
The side with the transfers is the “public” one, the finished fringe is usually hand sewn on, but it may also be used to cast on or be applied to several places in the knit both close together or at various intervals. Tension changes may be observed viewing from left to right, as well as the difference in length of loops as opposed to after the cutaway edge. The third stitch in work on the right may make for a more stable cutting line if looser tensions are preferred. Because the sinker plate used on the single bed has brushes and wheels in use, the width of the fringe can be considerable, without having to be concerned about stabilizing the center as it is when working on the double bed.
Visualizing the punchcard or electronic needle selection on the same number of needles in work as above helps. Here the first and last needle on each side knits at the start. End needle selection is off; if it is not the outside automatic needle selection will give that edge a different look. Using both settings will help determine if one is more preferred than the other. 
A closer look at both sides of my ancient swatch knit in 2/8 wool
Long loops are best in a thicker yarn, here they are shown in an every other needle arrangement using mohair on 2/8 wool ground
With ribber in the down most position (4.5 cm loops)
In this case, knitting ended opposite the fringe, only these stitches were bound off, not the single one on the far right 
Cut lengths of yarn may be added to edge or in the body of the knit, eyelets could be used as markers or for an all-over fabric, guiding placement. This illustration is from 
Fringes could also be crocheted or hand-knit, used to cast on the piece or be stitched in place upon its completion. I do not have the source for this, will credit it if I can find one 
The only way to find out is to try it. The lesson already learned: use a yarn that is crisp or capable of retaining memory for maximum effect. Here the swatch is knit in a 3/14 cotton. To start with, racking was from position 0 to 6 and back. Racking every 2 rows at the bottom of the sample, every row at its top
Now adding needles out of work with the expectation of folds at approximate center of each fold
This was my set up, after planning the repeat and transferring a couple of stitches on each end to the back bed for better side edges 
Racking started in center position 0, then swung to 3 left, to 3 right, ending on 0. I long ago got frustrated with the Passap numbering, marked the racking positions with a permanent marker from 0 on the right to 6 on the left. The knit result is definitely a rolling fabric, though a bit less so than the Brother sample which was able to move across more racking positions 
Passap E6 manual shows racking patterns possible with console built-in designs on pp. 118, 119, 120, 121, techniques used in racking patterns number 257-272. The console gives prompts for the direction in racking sequences. Self-programmed designs would need a separate knitting technique entered into the console as an additional “design”. This can be done with a card reader combined with a pattern download from a computer. Programs that automated the function to any degree are no longer on the market. Typically, in published patterns for either brand, if the starting point for the racking sequence is important, it will be given along with the frequency of movements such as in this design from the Duo 80 book
Some Duo symbols and their meaning
My sample was knit in a tightly twisted cotton, and when off the machine had an interesting and unexpected fold 3Dquality 
The setup is essentially the same, with white squares representing needles and pushers that need to be out of work. Tech 258 uses LX (slip) on the front bed, back bed si set to N. The duomatic pattern has a different OOW needle arrangement, the front lock is also set to tuck = FX (E6=KX), adding another layer of texture and complexity. Needles are also out of work on the back bed.
What is knitting in terms of black and white squares if one continues:
this repeat is what is required to match the technique diagram
Below the pattern alternates blocks of 5 black squares, 5 white, color changing every 2 rows and reversing racking direction after every 24 rows. The full repeat is 48 rows. If rows knit in the zig-zag are counted, they amount to 12 because each color slips it is not knitting for 2 rows. Note that to achieve the color reversal at the halfway point of the repeat the same color (2) knits for 4 rows, at the top of the repeat color 1 does the same.
Back to acrylic yarn, light color for more visibility creative yarn snag on the left midway, full swing movement is shown, each is 48 rows in height. As always it helps to check whether stitches are obliging by staying on the needle bed. The top half of the swatch is shown.
In turn, I programmed # 1000 X 6 in height but pusher selection was all up for one row, one down. I left it alone, and lastly, worked with pusher selection on the back bed, BX <–. Patterning advances a fixed repeat every row or every other, determined by original hand-selected up for selection and down above rail for out of selection. The front lock is left on N (disregard front for setting it to LX) there is a whole other world of possibilities, while the console racking sequences can be used from built-in techniques. 
Any ribber needle selection on Brother other than the use of lili buttons would have to be done manually.
a rearview with ends woven in
When the end of the first row that row is reached, as contrast color is added, stitches need to be cast on on the far left in order to keep the work on the bed a constant number of stitches. The usual method suggested is e wrapping, this is picking up from the row below. I found either method produced looser, longer stitches on the far edge 
reaching the far right: 
Such weights are made of lead. That is a concern, there are products on the market that may be used to coat them. This one is easily found in home improvement stores and online
It does a good job of weighing down those straight edges along the bumps, making the stitches easier to pick up. When rehanging those stitches, uniformly hanging the loops, not the knots along the edges involved will give a smoother join. Here a paper clip is used as the “hanger”
Lastly, a swatch ending in all knit rows. The only remaining issue is the fact that those side triangles are formed by stitches that are looser than across the rest of the piece. This yarn is thin and a poor choice, but fine for getting the technique down and beginning to understand what happens to stitches, how one needs to move from one side to the other, and what happens along the edges of each individual shape 
to consider the number of stitches required and whether the fact that other than garter stitch knit stitches are not square,
with a touch of steam and light pressing 
This is the isolated repeat for converting the pattern to a file suitable for download 
and its mirrored version for knitting from the opposite side 
My test swatch was knit on the 930, using img2track. Because not every needle on the bed is in work throughout the knit, end needle selection must be canceled (KC II). The knit carriage after the preselection row is set to slip in both directions. Because only a few rows are knit on the red blocks in the chart, the result is subtle. The white yarn used in many of my tests happens to be a 2/24 acrylic, so on the too thin side, and likely to be well flattened if pressed.
Often, the edge stitches on the carriage side will tend to be a bit tighter than those formed away from it. The same repeat may be used to create very different fabrics. Eliminating the all knit columns on either side of the center produces a piece with “ruffles” on either side of the center as the outer edge of each shape is no longer anchored down. The principle was used in knitting “potato chip” scarves popular in both hand and machine knitting for a while. Having a repeat on one side of an all knit vertical strip creates a ruffled edging. 
Note the effect of the added all knit rows on the “wave” of the piece on the right.
The shapes for the “bumps” may be changed, moving away from rectangular formats. Small repeats are used for the purposes of illustration here, but they, in turn, may be scaled up, rendered asymmetrical, vary in placement, and more. My design steps began with this idea
Following the goal to achieve bilateral placement along a central vertical knit strip, with vertical knit strip borders at either side, here shapes point in the same direction
I ran into an interesting problem for the first time. I had entered the row and stitch counts on my chart, used those counts to scale the image used for my repeat down to size for knitting, kept getting floats where there should not have been any, could not understand what the error in the repeat might be. What was happening is that because of the wrong row number used in scaling, there was an extra pixel row in the first test swatches resulting in knitting errors. The final repeat is 29 stitches wide, 38 rows high. This is the resulting swatch
Once more, the repeat could be reduced down to eliminate side knit strips, or limit shapes to one side only for a one-sided ruffle. What about repeating the same slit horizontally across a row? Repeats become very long, arrows are intended again as guides in the knitting direction. 
An even number of rows (green) at the end of the outlined repeat will return the carriage to begin knitting it from the right side once more. An odd number of rows added at its top will prepare for knitting the motifs beginning on the left. 
Pushing unwanted needle groups back to the D position will make them knit rather than being held, which is another way to vary the texture distribution across any single row
The reverse side shows the same issue. Areas can be identified where the held stitches have been hung up to create hems. Note that as the knit grows in length, at the completion of each row of repeats there is one segment with no hem on alternating sides. A longer test swatch follows
I created my hems on the carriage side, immediately prior to bringing the following group of stitches into work opposite it, and knitting a single row across that new group of 3 segments. The highlighted area indicates the stitches to be hung to create the hem. The eyelet on the top, right, will be smaller than the one at the opposite side of the stitches to be hung up
Reversing the direction of segments
This is one of my early graphics trying to imagine what is happening in chart form, which also references the repeat in the Passap garment, followed by plain knitting 
This fabric is worked out differently, in groups of 2. After the first segment is completed, COR if the starting group 1 worked is on the right, bring group 2 into work, knit one row to left, immediately bring group one into hold, and continue across row. That “float” is created as the yarn traveling between the last stitch on the right now coming into hold and the first stitch to its left knits for many more rows gets pulled on as the piece grows. 
Hems in knitting can be created on any number of stitches, anywhere on a garment, by definition join segments of the knit together permanently. Folds are freer. Here is an attempt at a different wisteria cousin with organized repeats. More on creating it will follow in a subsequent post now that holding techniques are back on my radar 