Machine knitting (MK) – Page 26

Charting shapes for automating short row knitting and programming

In machine knitting, stitches are usually brought out to hold opposite the carriage. If multiple stitches are brought out to hold on the carriage side, floats are created. Triangles stacked vertically as seen in the previous post will create a spiral curve along the line where stitches are held. The carriage needs to get to the opposite side and back after each ‘decrease’ or ‘increase’, so pairs of rows are used to execute and reverse angles in short row shaping. When multiple rows are knit independently from the rest of the knit, slits are created. In two-row sequences, these are generally similar to holes created in lace, in longer sequences much larger slits are produced. The latter are often used as planned design elements. The small holes being visible may not pose a problem for the knitter. If they do, wrapping the adjacent needles can help eliminate them, but the doubled yarn in the wrapped needle may create small, sometimes visible bumps on the knit side of the finished piece, creating a secondary pattern.

Reducing eyelet size: in traditional wrapping required needle(s) are brought out to hold, and the yarn is wrapped under and around the last needle in the hold position on the carriage side before knitting the next carriage pass

COR COL

The “automatic method” for wrapping

Decreasing: if COR (COL), 1 stitch to the hold position at a time, set the machine for holding. Bring one needle on the same side as the carriage into the hold position. Pass the carriage to the opposite side. COL (COR) repeat if shaping is 2-sided, or if shaping is only on the starting side, knit back to it, and with COR (COL) repeat process. Increasing single stitch: bring 1 needle always opposite the carriage into the work position.

Decreasing: more than 1 needle or stitch at a time: if COR (COL), place 1 fewer needle than required into hold on the opposite side as the carriage, knit 1 row to left (right), toward the needle in hold. When COL (COR), bring into hold the last, additional needle. COL (COR) repeat the directions if shaping is 2-sided, or if shaping is only on the starting side, knit back to it, and with COR (COL) continue decreases on the single, opposite side.

Increasing: to remove stitches from holding, COR (COL) place the desired number of needles into the working position on the side opposite the carriage, knit one row, repeat with COL (COR) if shaping is on both sides, or knit back to starting position COR (COL) and continue increases on the single, opposite side.

Charting out shapes knitting or programming stacked equal triangles/spirals: the wedge illustrated in the previous post “Air knitting” is often used to think out fabric issues before swatching using yarn. Drawing lines to follow the carriage movement direction required to keep the knitting continuous, whether on graph paper or within software programs can help sort out shapes that will work in short rowing. Holding needs to happen in 2-row sequences. Below, black lines and arrows indicate the direction of knitting for each row, in this instance beginning with COR. Blue = knit stitches, yellow = all knit rows at the completion of each wedge (2 or multiple of 2, depending on planned design). This repeat is suitable for knitting a continuous strip with ruffling/spiraling at various degrees, not for ‘pie’ shapes.

Working out the repeat: the red line represents the starting, selection (KC), knit row, the numbers at the bottom the width of the repeat, the numbers to the side its height. The first repeat A results in the fewest punched holes, drawn squares, or programmed pixels, requiring being knit double length. The remaining repeats (B, C) are drawn double length, standard card rotation is used. Eyelets form at the held edge. C takes automatic wrapping to decrease eyelet size at the held edge into account. When any sequences are programmed for knitting using slip stitch, the end needle selection is always canceled by using KCII or turning non-needle selection cams in punchcard models.

A B C the start of a miter shape: blue repeat, extra knit rows in yellow, auto hold on the bottom right

Going 3D: in many designs, the original repeat may simply be mirrored to be executed. If this is done here, one can see there is no longer a continuous knitting line, directional arrows are moving in opposite directions or toward each other from the center point

restoring continuity and shifting rows around to create a workable repeat one shape knit 3 different ways: red row = KC II, all knit

An executable 24 stitch, 26 rows repeat: black arrows alone indicate movement of carriage on the first row of the repeat, black arrows on red line indicate starting point and direction of movement of carriage for KCII rows. A begins to knit repeat with COR, B with COL. The triangle’s vertex can be squared off, the height of the repeat shortened, to make 3D shapes much rounder

Not just for electronics: some punch card repeats to try (also suitable for any machine). End needle selection is canceled. Selection rows are always toward the first pair of rows knit in a holding pattern, so for the first 2 cards, they would be from right to left. Single rows are punched but 2-row sequences are needed, so cards must be elongated X 2; miter shaping repeat is shown on the left, spiral on the right. Narrower shapes may be created and knit on the appropriate segment of the 24-stitch repeat needle positions. Use needle tape markings as guides for placement. The preselection row is from right to left, the pattern repeat begins with COL. All punched, extra series of pairs of rows of knitting may be added at the top. Note: just a few rows may not be added with a small segment of an additional card with clips, the whole repeat may have to be split into sections to allow for the extra rows and their smooth passage through the card reader. As an alternative, more rows of all holes could be added to the original card when first punched, tested, and then trimmed if not needed. It is useful to try out the repeat as a hand technique first in any of these instances, to determine personal preference.

Going 3D: punch only actual holes (black pencil marks were originally used to mark squares that needed to be unpunched for the auto wrap on right, not the best choice for B/W scans). Two-row sequences are punched, so no elongation is needed for either repeat. Miter shaping is shown on the left, spiral on right; mem <– indicates the direction for KC row; decreasing angles are auto-wrapped, increasing angles need not be as seen in the top of miter on left, where needles are returned back to work to create the reverse shape.

Some ruffle possibilities: all knit rows were added to the card on left with snaps, and are composed of all punched holes. The number of all knit rows between held segments determines the spacing between wedges and the degree of spiraling of the final fabric. KC row needs to be R to L for A, left to right B. Holding sequences are now staggered, changing the angle of the resulting curves. A short float is created where 2 stitches are brought to hold on the carriage side.

A: elongate X 2 B: use as is

The recommended minimum for punchcard length is generally stipulated to be 36 rows. Card A without the added rows is 28 rows high (the last 2 rows are for card overlap when adding snaps), so the repeat below, with the extra segment removed, would need to be punched twice

eyelet pattern reflects shaping

B: dotted lines outline segment: yellow dots on the purl side, the 1 needle floats one possible card revision: red dots indicate punched holes, stitches in hold as the carriage moves from the left to the right any difference in the swatch, in this yarn, was almost imperceptible; results would vary depending on yarn thickness and fiber content.

the swatch as a “ruffle”

Revisiting miters, spirals, going square, round, and more

There are times in knitting when math becomes a necessity. With online libraries, tools, and fairly intuitive software, drafting angles and shapes is now much easier. I will be teaching a class that includes miters and spirals at a seminar next month, leading me to revisit the topic. Most published pattern instructions will give starting carriage locations, but shapes may be constructed counterclockwise or clockwise depending on preference. With an understanding of how the shapes are formed and stacked, they may in turn be automated (depending on their size and the type of km) using the slip stitch setting. Stitches that are to be knit on each row are programmed as pixels, black squares, or punched holes.

Miter shaping may occur on the side or in the center of each triangular shape; a minimum of 2 knit rows usually occur at designated spots. Adding more knit rows and playing with angles of triangles will create ruffling effects, other angular shapes, pleats, and more. I have returned to using Mac Numbers, their shapes, and charts to generate most of the images below. Here the colored areas represent knit stitches, white negative (white) spaces stitches in hold. Red lines represent all knit row(s)/ spots for seaming at the top and bottom of sequences. Seaming is easiest when done by joining all knit rows. Stitches are always brought into hold opposite the carriage side and returned to work on the carriage side. In the shaping guide, COL= carriage on the left, COR= carriage on right.

knitting each segment

COR COL

Yellow triangle segment: bring all needles out to hold, and push them back into work on the carriage side at the determined rate until all needles are back in work. Green triangle segment: with all the needles in work, begin to bring stitches into hold opposite the carriage at the determined rate until all the needles are in hold.

If seaming is desired in miter shaping with resulting eyelets at the sides of the triangle, the full wedge is split between the top (yellow segment) and the bottom of the piece (green segment). Knitting always starts with at least one or 2 rows of knitting (depending on whether the finished shape is to have a grafted seam. For the full wedge: * yellow segment, bring all needles out to hold, and push them back into work on the carriage side at the determined rate until all needles are back in work. Reverse shaping with green segment: with all the needles in work, begin to bring stitches into hold opposite the carriage at the determined rate until all the needles are in hold. End with knit rows (red line) across all stitches*. Repeat from * to * for the desired number of full segments, end at the top with a yellow segment if needed, followed by a knit row(s) (red line) before binding off or seaming.

shaping with resulting eyelets at the sides of the triangle: the final shape CORthe knitting sequence with top/bottom 1/2 triangle segments shown

COR COL

For miter with shaping and resulting eyelets at the center of the triangle: begin with all knit row(s) (red line) at the start. To shape a full wedge: *green segment is worked bringing stitches into hold opposite the carriage at the determined rate until all the needles are in hold. Shaping is next reversed with the yellow segment, pushing needles back at the determined rate until all needles are returned to work. End with all knit rows (red line) *. The sides of this miter are all knit rows, an easier place to seam/ graft joins if needed.

shaping with resulting eyelets at the center of the triangle: the final shape CORthe knitting sequence

COR COLa tiny test shaping at side shaping at center

In the following images, the red or blue lines indicate seams or joins

segments composing a square shape
adding squares or rectangles to alter the square
adding triangular segments: hexagon expanding it with rectangles, shaping at sides
shaping at the center hexagon extra_seams going 3D: triangular pocket with the point at the center

combining shapes: this one is often seen in tams (hats); bottom shaping is on only one side, and at the top, it occurs on both sides

tam1 tam2 adding rectangles or squares to alter the shape
tam3

bringing needles out to hold opposite the carriage

Spiral stack 1/ green full triangle: knit row (s), *with all the needles in work begin to bring stitches into hold opposite the carriage at the determined rate until all the needles are in the hold position, end with all knit row(s) (red line).

COR COL

Spiral stack 2/ yellow full triangle: knit row (s), *bring all needles out to hold, push them back into work on the carriage side at the determined rate until all needles are back in work, end with all knit row(s) (red line).

COR COL

3D spiral

If the object is to construct a circular shape, the greater the number of panels, the smoother the outer edge of the piece. Some of the pie-bilities:

In all instances above the radius and therefore 2 sides of each wedge remain equal in size, and therefore are composed of the same number of stitches. The triangle knit to achieve these shapes are isosceles triangles, where 2 of 3 sides are equal in length and in this case, the number of stitches. The 2 equal sides are usually referred to as legs, the remaining one as the base. The 2 base angles are equal as well. The remaining angle is the vertex one. In knitting, this will be the pivot point for the wedges, the center point of the “pie” shape. In the illustrations below the vertex, angles are marked by blue dots. Its angle value is the first represented in the numbers immediately below each shape, with the other 2 numbers indicating the remaining, equal 2 angles. The sum of all 3 should equal 180 degrees. Taking it to a shape: octagon (half the total # of wedges shown). In colored shapes spiral, stacking equal triangles is shown on left; full triangle, divided into 2 segment shaping for miter on right.

Oh, yes, the math! The desired shape may be drawn to scale using any number of tools. Wedges may in turn be shaped following the scale drawing on any charting device such as knit-leaders, or stitches and rows required may be calculated on actual full drawing measurements. In knitting, the equal sides (AC, AB) of the triangles are formed by stitches and the height of the triangle (CB) by rows. If the finished size matters, an accurate gauge is required. One approach to calculating the base (CB) is to think of the whole shape as a complete circle, in this case, divided into 8 “pie” wedges, with congruent sides (radius) measuring 10 inches each. To find the circumference of the circle, multiply the diameter (20) inches by pi 3.14 = the total in this case, of 62.8, rounded off to 63. Divide that number by the number of sections (8) = 7.85, rounded off to 8 inches (rows). If the stitch gauge is 6 stitches and 8 rows per inch, each triangle would be 60 stitches wide, and 64 rows high. Holding happens every other row, opposite the carriage, so the total number of rows is divided by 2 = 32 for knitting a spiral. The stitches are distributed along one edge over a total of 64 rows in height. The goal is to reduce the shape down to the next to the last group, followed by two rows knit over all the stitches at the end of each section. This will cause a small hole at the center of each completed pie due to extra rows knit. For a miter 2 triangular shapes are required for each wedge, so holding sequences are recalculated with shaping now occurring over 16 rows for knitting a miter.

An online calculator is available to help calculate the number of stitches brought into hold opposite the carriage or into work on the carriage side, sequence preference should be tested on swatches where the gauge is significant

spiral miter

Magic formula (X represents times)

In the photo below I chose to start with all the needles out to hold, pushing them back into work across the knit for the spiral. For the miter again, I began with all needles in the hold position, pushing back the required needles into work; for the top half of each wedge needles were returned to hold opposite the carriage at the same rate, forming the upper half of the “pie slice”. The swatch is not worked at the same rate as the shapes calculated above. It is shown on its purl side with color changes to highlight the intersections where wedges begin to repeat. The yarns used are random acrylics, in different weights.

A previous post on short-row knitting with links to other online sources 2013/12/18/holding-stitches-short-rows/.
A category search in my blog roll for miters and spirals will link to blog posts including pies:
2011/06/18/knitting-math-and-pies1/
2011/06/22/back-to-that-pie-a-bit-of-holding/ breaking and mixing up pie wedges:
2014/07/21/miters-and-spirals-visualizing-charting-and-more-3/ .
A garter bar short row trim:
2013/02/28/garter-bar-short-row-trim/.
Charting shapes: using Gimp and Mac Numbers:
2014/07/14/miters-and-spirals-visualizing-charting-and-more-1/
Executable charts and shapes, automating them with slip stitch:
2014/02/24/holding/ short-rows-hand-tech-to-chart-to-automating-with-slip-stitch-1/
2014/02/20/wisteria-cousin-revisited-holding-using-slip-stitch/
2013/01/21/automating-pleating/ 2013/12/28/short-rows_-balls-tams-3d-rounds/ 2015/09/07/a-tale-of-2-donuts/
2011/03/29/lace-meets-hold-and-goes-round/
2011/03/29/the-doilies/

Hand knit “dragon scales”

A detail of half fisherman machine knit “dragon scales” MK ribber version of stitch

My last experiments led to a search for a possible hand knit “scale” version. Similar shapes may be achieved through holding, but here the effect is created through the use of increases and decreases. The test for the repeat was knit in a 4 ply acrylic. As with the machine knit version, the pockets become more pronounced as the fabric relaxes, without any blocking. Garter stitch was used in the first sample, for both texture and speed. Everyone has their preferred methods for increasing (M1) or decreasing/ combining 3 stitches into one. I tried picking up from row below or casting on single stitches (#1), but found the least noticeable methods to my eye, using this yarn and stitch type, were simply to knit in front and back of the stitch (#3) where an increase was required, and to knit 3 together (#2) for the decreases.

the reverse structure curves in a similar way to the machine knit

The number of stitches remains constant on each row knit; the chart reflects side panels (A, C). The central 18 stitches (B) that may be repeated multiple times to achieve the desired width. The border stitches added may be any number, are also knit on every row.

The fabric changes dramatically when every other row is purled. This swatch was knit with a single stitch garter stitch border, and I experimented with increases and decreases. The M1 sts were created by picking a loop up knitwise from the row below for the increase. The slight shift in the pattern center where decreases and increases meet helps define a point on the “scale” shape. The same yarn and needle size were used as in the above sample. A softer, thinner yarn knit using smaller needle size would benefit either variation. To my eye, the all garter stitch version was more successful and pleasing.

knit as “outside”, default shapes reversepurl as “right side” after poking scales out its reverse

for a less pronounced, “scaly” relative using lace in its design please see https://alessandrina.com/2015/01/09/a-swatch-experiment/ https://alessandrina.com/2015/03/28/machine-knit-dragon-scales-update/

Vertical racking 3: automating half fisherman in pattern (2)

Working with the half fisherman racking discussed in the last post, here is an approach to interpreting the fabric seen below for knitting on a Brother model knitting machine. For the sample chart, I chose a 12 stitch repeat, making it executable on any knitting machine. The ribber is set to half-pitch. An often-overlooked clue as to what is happening or is about to be found in the arrows just below the racking position indicator. With the latter at 5, the red triangle appears pointing to L. As the bed is racked to position 4, the red arrow now points to the letter R. This is a simple racking pattern involving only the 2 positions, either to R or L

pitch_rack

Once on position 4, the red arrow indicates the direction in which the bed was racked on the last move (R), the “empty” arrow the direction for the next move (L), bringing the position back to 5. More complex patterns require a bit more planning and tracking to avoid errors.

Racking patterns in books often recommend beginning the fabric with the setting on 5, or the center position for the machine in question. Doing so allows for balanced edges in patterns that swing by multiple positions in both directions. In this instance, for the sake of avoiding mistakes in as many ways as possible, I would start the pattern on racking position 10. Racking cannot go any further to the right, so no chance for example of racking to 6 rather than 4 in the knitting because of inattention. Having a “cheat sheet” with row numbers where no racking occurs, and the position of the carriage to R or L at their start and or after the knitting is also helpful. I had to lower the tension on both beds considerably to avoid forming loops that in turn got hung up on gate pegs. Especially at the start make certain that the comb and weights drop properly. Using KCI will ensure that the first and last stitch on the main bed always knit. In the patterning used on the Passap back bed (previous post), the groups of needles in each half of the repeat will change to the alternate position with each pass of the lock. On the rows where the back lock is changed to N, selection continues in pattern, but no tucking occurs. In this chart, the pattern is maintained continuously throughout, while blank “remaining” squares are filled in on rows where no tucking or racking occurs = N, every needle knits. In Brother machines, both tuck buttons are pushed in. Selected needles knit, non selected tuck across the row. new program 2

I tested the pattern approach on my 910, with a 38 row, 20 stitch repeat in a random acrylic. I had some issue with some needles not selecting properly, for whatever reason. The repeat was not planned so a full 10 stitches were at each side of the knit, resulting in the difference on the right side of the swatch photo from its left.

half the repeat with color change on a single plain knit row (use of color changer only possible with even row change sequences), the top stripe of the swatch in plain rib

back to scales and knitting them

Overall, wider repeats and thicker yarns gave me harder to knit fabric, with less noticeable pockets and lack of stretch and “bounce”; ultimately I went back to a 6X6, 12 stitch 2-row sequences illustrated in the chart above. The thinner yarn needs to be with a bit of stretch, and enough strength not to break when ribbed and racked at the tightest possible tension. This is a fabric that requires concentration, having as many clues as possible to help stay on track is useful. If errors are made close enough to the all knit row, it is possible to unravel carefully to that point and continue on. Mylars or punchcards may be marked to reflect racking position. Here the mark on the right = 10, the one on the left = 9. Marks take into consideration that the card reader’ design row and knitter’s eye level row views are not the same.

A row cheat sheet can help track carriage location for all knit rows. Pictured below is part of mine. Wording for clues or description of sequences should make sense to the person knitting, not necessarily follow a specific formula.

some of what “did not work”, including a very long swatch with a confusing pattern due to creative operator error

a finished piece with yarn ends not yet woven in

The fabric is tugged lengthwise, left unblocked, and pockets may pop on either side of it, with the majority on one side of the knit as opposed to the other

the start of a series in varied colors and fibers

Racking 2: vertical chevrons/ herringbone +

Here again, half fisherman or full fisherman rib is be used. The zig-zag happens at the top and bottom of the fabric. In half fisherman, the setup is once again for full needle rib. If knitting in one color the sequence is: knit one row, rack a space, knit one row, rack back again (X and Y below represent the 2 racking positions involved

for 2 color fisherman, the sequence is knit 2 rows with col 1, rack one space, knit 2 rows with color 2, rack one space back again

this fabric is produced in conjunction with a pattern repeat using the principle that black squares knit (pushers up, needles preselected), white squares tuck (pushers down, needles not selected), the repeat is 12 stitches wide, 2 rows high; it is possible to have 6 stitches tucking side by side because this is an every needle rib, and there will be a knit stitch on the opposite bed anchoring down each tuck loop

one color half fisherman side one one color half fisherman side 22 color setting, color changes every 2 rows, side 1, thinner yarn
side 2

2 color version, changing color every 20 rows; racking interrupted with plain knit rows at top and bottom creating horizontal pockets

This type of repeat became popular in Passap clubs for use in their Passap ripple afghan. The racking first to the left and knit a row, knit to the right and knit a row, was interrupted after 36 rows, followed by a color change and a no-racking knit row before resuming the previous racking sequences.
When single or multiple odd # of rows with no racking are introduced at intervals the zigzags once again happen at sides rather than top or bottom, with the knitting after the no racking row(s) reversing direction. The yarn used in these swatches is a random acrylic, presses flat, not the best if aiming for any 3D textures; the color difference is due to photos being taken at different times of day

side one side two

what happens when multiple odd numbers of rows are knit changing back lock set to N (all knit), no tuck stitches. The fabric still swings in opposite directions, and in addition, the all knit rows produce areas that “poke out”, beginning to create scales of sorts

side one side two back to vertical: full fisherman with color changes every 2 rows, side one side 2, with a few stitches knit off issues

it is a matter of personal preference whether the extra effort with full fisherman rib is worth any difference in appearance or result in the final fabrics. Changes in tension, yarn fiber content, and machines used add to the variables. Good notes in trials help one determine predictable results and to choose whether the effort may be worth it or not. Using laborious techniques for borders rather than whole items is always an option.

1/22/2016: half fisherman racked rib knit in thinner yarn, wider # of stitches and more rows in pattern group before single N/N row, no blocking

same fabric with color change every 2 rows

Ribber pitch, a bit on racking 1: chevrons/ horizontal herringbone

A “how might this be done challenge” of late re this fabric brought to mind racked patterns for chevrons, both vertical and horizontal, and the possibility of producing them on home knitting machines. To review some of the principles in racking in both Brother and Passap knitting machines: the pitch is the distance between each needle groove along the needle bed is sometimes also referred to as gauge. The size varies between machine brands and types of machines. For example, the Brother bulky has a 9 mm pitch, the Passap a 5 mm one; the larger the pitch number, the thicker the yarn that may be used.

Full pitch lines up needles and gate pegs (or channels) on both beds directly opposite each other. To knit patterns in full pitch, the rule is that for every needle in the working position on the main bed, the corresponding needle on the opposite bed must be out of work, and vice versa. This setting is never used when groups of all needles are in work on both beds. Stitch patterns using this setting are designed to have opposite needles in work on either bed at any one time, but not both at once. The number of maximum needles in use for ribs on both beds will usually total 200 (4.5 mm machines), and the setting accommodates yarns thicker than when every needle is in use.

In half-pitch both bed needles are now offset by half a position, centering them between each other. The full complement of needles for possible use now is potentially 400 (4.5 mm machines); the setting accommodates thinner yarns than one might use on the single bed.

The half pitch lever on Brother may be moved from P to H to change alignments. In Passap the racking handle may be used in an up or down position to do so. The racking or swing lever allows the ribber bed to be swung one full pitch to the right or to the left in a series of stepped moves. The racking handle on Brother machines is located on the left-hand side of the ribber bed. Racking swing indicator positions are numbered 0-10. When the racking indicator has been moved over to the next number, this means the ribber has moved by one full pitch. With the swing indicator at 5, both beds will be centered opposite each other, the usual position. Starting points may vary when racking is used in patterns. Beds cannot be racked with needles in holding, as needles will then crash into each other. It is always a good idea to check ribber alignment before tackling more complex, double bed fabrics. In Passap the racking indicator is situated above the racking handle, and arrows indicate the direction of the last movement. The scale at the top of the front bed shows the possible racking movements from a center point of 0 to 3 to either to right or left of center. I chose to place numbers below the factory ones on the machine from 0 to 7, finding that method easier to follow, since I do not rely on built-in patterns and racking prompts from the console. For the purposes of these swatches, I am reverting to the factory indicators.

In the Passap system, the racking handle has 2 main positions: up, and down. When the racking handle is up needles are directly opposite each other (P pitch in Brother), when it is down the needles are between each other on opposing beds (H on Brother). There are some racking handle positions at different parts of the “clock” that are recommended when using some of the Passap accessories.

Regardless of machine brand needles have 3 basic functions: knit, slip (do not knit), tuck (gather loops). Passap pushers have 3 positions: work, rest, and out of work. When a pusher is in the up position the corresponding needle will knit no matter what the setting on the pattern dial. This is the equivalent of having needle pre-selection on Brother, but forgetting to change cam buttons from the normal knit setting. When a pusher is at rest it will slip or tuck depending on lock setting to AX, DX, or FX (in Brother these would be needles not selected, in B position). If locks are set to C, E, or G, the pushers have no effect on the needles. Pusher positions may be changed manually, automatically by arrow keys (back lock Passap, lili buttons, and lever Brother ribber), automatically by readers whether electronic or punchcard on both brands in the Brother main bed or front bed Passap are in use. NO pushers are used in N (double or single bed plain knit), CX (tubular), EX (double bed, tuck).

I personally find racking easier in terms of the numbering in Brother brand machines. For these samples, however, I chose to work on my E 6000. Adding tuck to the mix creates more textured surfaces, and a half or full fisherman’s rib where every needle tucks, then knits as the carriage reverses direction on either single or both beds, is a place to start. I have written previously on tracking brother racking sequences using a punchcard numbering system. If no other pattern is used on the main or front beds, needle and pusher selection might be used to track the racking position there as well. These fabrics require concentration. In terms of chevrons, both horizontal and vertical may be produced. Some published sources include a youtube video by Diana Sullivan, knit on a Japanese machine, and a baby blanket in full fisherman rib knit on the Duo 80. The version below is my half fisherman adaptation of the latter. The photos illustrate both sides of the fabric. The racking is done by moving a single of each of only 2 positions to the right or to the left. Single (or multiple, odd-numbered) rows at the end of each sequence place the carriage at its start on the opposite side, rather than altering the numbered sequences as in the Diana video. I began my fabric on Passap racking position 2, to the right of 0, locks set at KX, N, first and last needle in work on the front bed. The back bed tucks every needle right to left, knits them left to right. There is a slight difference in texture between the 2 sides of the fabric.

activate row counter after CX rows in the cast on, with locks on left, so knitting the racked pattern begins with locks on Right, RC on 1. Below is my working “cheat sheet”

cheat sheet settings

For scales and chevrons on Brother machines please see 2018/07/19/more-scales-and-chevrons-in-ribbed-racked-4-fabrics/

Tuck and garter stitch: from hand knit to machine knit hand tech pattern

A Ravelry question on the possibility of executing a particular fabric on the machine has led to the experiments in this post. The pattern that led to the discussion is a free hand knit one, shared and published on the Purl SOHO website and on Ravelry. The gauge for their project is 4.75 stitches = 4 inches in stitch pattern, it includes garter rows. Such rows may be executable on home knitting machines by transferring from ribber (Passap front bed) to main bed, alternating with reversing the process at a predetermined frequency, depending on stitch type. K1b is the hand knit equivalent of tuck for that stitch on that row, adding to the mix. Not practical for G carriage use, as the latter does not form tuck loops, and hand retooling would be required for all k1b stitches.

Using holding to create tuck stitches in non-auto patterning days was commonly used, and I chose to do so here. As machine knitters, we are conditioned to believe that single color rows are impractical to execute and that the yarn would need to be cut on each side after the one row. Color changers are on one side or the other, making striping with frequent color changes is practical if executed in even multiples of rows. Transfer carriages are available that will help move stitches from one bed to the other, I personally have never had the patience to work with them enough to get good at using them without dropping stitches, so I went back to even lower tech than usual, using the garter bar on the bulky, and beginning pattern row 1 with COR.

Before attempting nearly every row turns, it is helpful to have some practice with turning work over using a garter bar, develop a sequence of repetitive actions, keeping careful notes as to what works for you, and using contrasting yarns in tests to better understand stitch structure. In my sample the white yarn was thicker than the blue, reversing colors or balancing yarn thickness would change the visual look of the fabric. Beginning on small samples helps work out issues and the making of the decision to try on a larger project or simply as a border.

Analyzing the pattern repeat:

tools to help with EON needle selection

the results of rows beginning with k1 sequence after the row is knit, note the “tuck” loops on top of E position needles, which will be knit off on the next row knit

a row that begins with a k2 sequence, before it is knit; the needles holding the single, blue stitch will form the loops on top of the needles as the yarn moves across to the opposite side

E position prior to transferring stitches onto garter bar, also for a free pass to the opposite side to pick up yarn after stitches are removed on bar

1 begins and ends with K 1; COR select needles, col A * knit row, COL, bring all needles out to hold, remove on garter bar, free pass carriage to theopposite side, COR, flip garter bar over, replace stitches onto needles push all stitches against gate pegs *

2 begins and ends with k 2; COR select needles for row 2, col A repeat * to* end COR

3 begins and ends with k1; COR select needles for row 3, change to col B, knit one row, do not turn, do not cut yarn; COL bring all needles out to hold, a free pass to the right to pick up col A on next knit row, end COR

4 begins and ends with k 2; col A, COR select needles for row 4, repeat from * to *

5 begins and ends with k 1; COR select needles for row 5, col A, repeat from * to * do not turn

6 begins and ends with k 2; COR select needles for row 6, change to col B, repeat from * to *

publisher’s project photo

my swatch, knit on a whopping 9 stitches

Thread lace and punchcard knit carriage use on Brother 910_2

A short while ago there was a Ravelry thread discussing reversible, double bed knits. I recalled a demo from eons ago that I saw at a machine knitting seminar and decided to explore my memories and share them. The result approaches a “reversible” fabric, with imperfect results depending on the yarns used and other factors. There is a group of knitters that are presently experimenting with “glitch knits”, where the intent is to purposely create patterns with what some people might consider “mistakes” as purposeful parts of the design. For one example see a video of the technique. The “imperfections” in the fabric below may be seen as a positive by some. It is not the result of any aberrations in the programmed pattern, but rather a result of the way the threads get pulled through each other as the carriage moves across each row knit.

My samples were knit using equal-weight yarns. The fabric may be better served by using different weights, approaching the usual recommendation for plaiting. See the manufacturer’s directions for plaiting feeder use.

Cancel the end needle selection on your knit carriage.
Cast on for full needle rib with both yarns in place.
Hang comb.
Knit 2 circular rows followed by one more all-knit row.
Change to a rib tension that has been tested for yarn combination.
Several rows may be knit for a “solid” color edging.

When the first pattern row is selected, one need not set the KC carriage to slip. N is king in Brother, regardless of pattern/ needle selection as long as no cam buttons or levers are pushed in/ selected, everything knits, whether single or double bed.
After the first row of the pattern is preselected on the main bed, use a tool to push both buttons in as seen below, and proceed in the pattern. Even though end needle selection has been canceled, if the end needles on the main bed are selected, they need to be pushed back to the B position or those stitches will be dropped.
Plenty of weight is required.

my punchcard carriage with the added magnet set up on one of my 910:

when testing motifs it is always good to begin to do so using a simple pattern, making needle pre-selection easy to view and check. I began with “checkers”. They can be viewed at the bottom of the image below with the machine set for double length, at the top as drawn on the mylar; most such fabrics are well served by double-length on any machine, electronic machines could easily vary the repeat size or color reverse at the flip of a button, using lili buttons on ribber may add to the mix of results as well.
a familiar stock Brother punchcard, knit on my 892, double-length Review of the use of plaiting feeder from Brother ribber manual

Thread lace and punchcard knit carriage use on Brother 910_1

Yes, the 910 has no thread lace setting. I happen to also own a punchcard machine model # 892E (no idea why Brother chose to add the E to a punchcard model name). I remembered eons ago reading about someone on an Australian list actually getting a punchcard model carriage to work on an electronic machine. It is good to beware that not all carriages may be interchanged between different models, especially if the latter were manufactured several years apart.

The magnet on the back of the electronic carriage is what trips the reader in the 910. With the 892 and 910 carriages side by side, I marked the approximate spot I wished the magnet to be. It is presently in place with cellophane tape for my tests. I believe it to be a “rare earth magnet”, 12 mm in diameter, part of a jewelry piece from days gone by, with a deep attraction to all KM metal parts.

the first location was too high, the pattern did not read properly what turned out to be a much better spot a random mylar repeat the resulting fabric, on both purl and knit sides

I used two cotton yarns, with a slight difference in weight. With the exception of when knitting transfer lace, the first instinct may be to use the color reverse option when the mylar repeats show lots of “white squares”. However, in this type of fabric blank squares knit both yarns; black squares or punched holes knit only the thinner yarn, while the heavier one floats behind it. The KC tension used needs to accommodate both yarns easily knitting together. When only the thin yarn knits on selected needles, the stitches formed will actually be larger in size than those where both yarns knit together, giving the “illusion” of holes.

This fabric was also at times referred to as punch lace. It is only possible in Brother machines that have 2 cam buttons in the center position, both center buttons under the MC/L mark are depressed. The punched holes/ black squares in mylar select needles that will knit in the fine yarn only. If you are using a very fine yarn for the second yarn, you may have to wrap it twice around the dial on the mast tension unit to control its feeding. Better edges are produced by canceling end needle selection or manually pushing any selected end needles back to B. If KCII is an option on later electronic models, some of the work is done for you. End needle selection may also happen as part of the design repeat, so in those instances, unless you are happy with the thin yarn only knitting on the very edge of the fabric, those needles need pushing back to B by hand as well.

BTW: end needle selection must also be canceled whenever patterning with needles out of work is used, or needles on both sides of out of work ones will produce knit stitches regardless of programmed pattern.

If a contrasting color is used as the thin yarn in the B feeder, the results may be seen below. Note: the colors appear reversed to their position in feeders, so A (thick) color is seen more on the purl side, the B (thin) is more evident on the knit side of the fabric. The top of the swatch shows the result when blank rows are programmed into the reader. Sometimes this setting is used as an alternative to replacing the standard A/B feeder with the machine’s plating feeder (if available for your model km). Reversing yarn position can produce some interesting stripes

not all A/B yarn feeders are created equal

I have always found the extra B gate on left more a nuisance than a necessity, particularly if the B yarn needs frequent changing.

Another unconventional use for this setting to produce “pretend cables”

It is possible to knit thread lace with the plaiting feeder in place on the single bed as well. The effect approaches glitched versions of the pattern, Stitchworld #407. This is a quick hack to keep the front yarn from slipping out of the yarn feeder The blue and white yarns are equal in weight, the orange replaced it and is thinner

Picot cast on for every needle rib

Depending on the sort of rib, the beds need to be aligned in most instances so that the needles on opposing beds line up between each other. For this ribber cast on the beds start at full pitch, as you would for EON knitting. Every other needle is brought in to work. A first “zigzag” row is created at the tightest tension possible. On the second row, the alternative needles need to be worked. On Passap E6000 BX, LX with pushers under new needles only will help do the job. On Japanese machines: bring the new needles out to hold, set both carriages to slip. This will result in only those “new” needles knitting on the next pass. The outcome will be one zigzag crossing over the other (red over blue in the photo). Prior to the third knit row, reset the carriages or locks for circular settings (CX/CX, opposite part buttons). Because all stitches will be knitting on each bed, loosen the tension to about three-quarters of the rib stitch size, knit two rows, change racking handle/lever and needle positions to half pitch at their completion. Adjust tension to desired rib stitch size, knit a closing “zigzag” all knit row at tension used for the remaining knit, and proceed in rib
The method may be used both for every needle and for every other needle rib.
The configurations for each, colors are in reverse order from photos that follow

first zigzag rowsecond zigzag row (contrast color for illustration purposes)hang comb, knit 2 circular rows change racking position and needles alignment change tension, continue in rib, knitting all sts both beds detail close up