Working with generated mazes: GIMP charting 1

Laura Kroegler shares an online generator for “mosaics”unikatissima offers them for mazes and cellular automata. Representations of such patterns have cropped up in relation to hacked knitting machines and electronic downloads such as those seen in the Claire Williams blog, and in published information by Fabienne, who of late also has a Kickstarter project. Such patterns may be charted for hand knitting or for use on punch card machines once the size of the repeat is taken into consideration. Mirroring either vertically or horizontally can make the image far more interesting, but that has to be a consideration in planning if the stitch repeat has a constraint of a 24 stitch limit. A beginning unit 6 stitches wide will allow for the horizontal mirror to be repeated twice on the punchcard. The minimum punchcard length is 36 rows. The maximum scroll down to height in the Kroegler generator is 20, so for the least punching, an 18-row max would “fit”. The caveat here is that if the generated pattern is to be knit as DBJ or as a single bed slip stitch, those 18 rows need to be color separated accordingly. For the design to be charted out easily, it may be saved, and then in turn gridded in Photoshop or Gimp with the grid matching stitch size in the generated pattern preview (ie below note X and Y values are 5 X 5, so grid used would be 5 X 5 pixels as well).
After reviewing the tiled generated pattern, the image may be carefully captured from the screen and saved. I worked with an 8-stitch repeat for my tests. Below are screen grabs of the resulting patterns after some of the various options offered were tried. Mirroring this repeat horizontally makes it too wide for a punch card (16 X 2=32).

38_400

40_400

42_400

46_400

44_400

using a 5X5 grid after capturing a portion of another generated image, using a simple 8X8 repeat, outlining single repeats, thinking punchcard machinescreenshot_34

checking the result tiled to predict possible knit “look”screenshot_28

If working with a 6 stitch repeat, horizontal mirroring becomes possible for punchcard machines, perhaps making things more interesting; the program can generate a single repeat as a png, and punching holes is a drag so maybe length remains on the short side in anticipation of the punching holes and color separating for knitting the motif as either DBJ or single bed slip stitch, so here goes: having the generated image produced so each stitch and row is represented by a single pixel allows one to work within any program preset to superimpose a 1X1 grid:screenshot_07

screenshot_08my saved png, supposedly for an 8X12 repeat newgridded in gimp, revealed as  11W X 23 Hscreenshot_09

testing tiling: oops!screenshot_10

the trimmed repeat, eliminating double lines, 10 St W X 22 Rows Hcropped

tiled, looking closer to original, cropped_tiledand then there is the knitting of it if one chooses to do so as single bed  “floatless fair isle” as opposed to double bed dbj

For the latest version of gimp for Mac OS, version history may be found at the gimp website, for Mac Yosemite and Mavericks’ latest information on version 2.8.14.

2020: latest Gimp update for Mac, my Mac OS: Mojave 10.14.6, now swatch testing on a 930 with image2track cable and software, which allows for easy use of larger repeats. Newer thoughts and observations: the maze can be generated using only black and white. If all boxes for options are checked as seen below, there will be shifts in the overall design. A small, working BMP may be saved for download, but only part of the overall repeat will be selected by the generator. Quitting the generator, and opening it once more entering the same options will generate a new image, so saving and naming each is a good habit to form the BMP in Gimp, explored in two renditions, eliminating double lines The proof of concept swatch for the version on the right and knit in tuck stitch the double-length BMP ready for knitting,  14X68

One more, using different option selections the BMP in Gimp, explored in two renditions, eliminating double lines My latest process for the required color separation

 

Carpet or pile stitch knitting on Passap and Brother KMs 2

Trial swatches do not necessarily require a permanent edge. The main bed cast on with all open stitches is familiar to knitters accustomed to using a single bed Brother cast on comb. A quick version of the same type of cast-on is also doable when both beds are in use, and the goal is to knit all stitches only on one bed or the other. The broken toe cast on for rib is so-called because if comb and weights are hung in the wrong location on the needle bed when stitches on the opposite bed are dropped, so will the comb be along with weights, heading for your feet. If the ribber is going to be the bed doing the knitting that anchors dropped stitches or pile in Brother kms, please note prongs of ribber comb line up directly in front of main bed needles (blue arrow) and to each side of the loops on ribber bed needles (red arrow). The ribber comb wires will anchor down loops on the needle bed where plain knit rows will be formed. As mentioned above, this method will result in stitches all being open, does not produce a permanent edge, is suitable for quick swatching or for waste yarn at the bottom of the weighted fabric. It is possible to perform this cast on with ribber comb with wire already inserted in both brands, but the broken toe method is potentially less hazardous to needle health. brokent_toe_arrowsAnalyzing what is required to move between km brands with the goal of achieving 2 color or isolated pile motifs: in Passap with the back bed set to FX, one arrow key, EON pusher/ needle selection changes every 2 rows. In Brother, this may be achieved on the main bed by pushing in one tuck button and programming a repeat.  The alternate, adjacent cam button, left in its normal position, will knit every stitch when knitting direction is reversed regardless of whether any needle selection is happening. On the ribber, lili buttons may be used for alternate needle selection. Its levers determine whether tucking or slipping, in one direction or both, occur. The number of stitches on the ribber must be even. An easy visual check is to check markings on needle tape, which consists of what I refer to as dashes and blanks. For an even number begin with one, end with the other.  Passap will automatically revert to the alternate pusher for patterning on the subsequent 2 rows. In using lilis this is not an automatic function, and some handwork is required to obtain the same effect by changing the first needle selection every third row as seen in this post.

If the ribber is chosen as the loop making the bed, the needle selection on it needs to be manual for any pattern other than across whole rows. In my swatch, to knit across all needles the ribber carriage is set to slip in one direction, knit in the other. The all knit rows in pile knitting need to follow the ones with tuck loops on the opposite bed.  Extra needles are on the main bed, which creates fabric backing. The ribber carriage can be disengaged and used to drop stitches after all knit rows on the main bed.

In the actual knitting, if a plain one color pile with plain color backing is the goal, some rules may be broken. The thickest, most stable pile is achieved when the yarn anchoring the loops is as dense as possible. If the goal is to knit every stitch across each row to create loops and in turn drop them, one is, in fact, working an every needle rib. This makes it possible to create tuck loops on either bed creating the backing across the whole row because in fact there are stitches on each side of the tuck loop on the opposing bed anchoring it in place. Normally when 2 or more needles tuck side by side, rather than the stitch formation usually seen in tuck patterning, the loops do not get anchored, drop off, and create a float like those seen in slip stitch patterns.

In my first sample, the fabric is cast on the main bed, the loops are formed on the ribber. The carriages are set for the main bed to tuck traveling to the right, knitting to left. The ribber is set to slip to left, knit to right. The ribber is used to drop the stitches, simply by disengaging it from the main bed and running it across from one side to the other. Dropping stitches occurs (on either bed) after all stitches have been slipped there for one row (no needle selection if patterning). The starting side for my swatches was on the left of the machine. It is helpful to have a ruler or tool to help push loops down between the beds after dropping each row of loops and also to occasionally drop the ribber in order to check whether any loops may be caught on gate pegs.

In this swatch, I had some problems (blue arrow) on the right side related to changes in tension while determining what might be the best. Section 1 has every needle tucking on the main bed. Section (2) begins to try to emulate the Passap pusher selection using an EON 2 row tuck repeat on the main bed, resulting in things going awol and loose, even at the tightest tension possible on the main bed. Any time patterning is used on the main bed, end needle selection is canceled (KCII). The tuck repeat2 row tuck

the settings (here lili buttons are not in use1X1 card MBno lili2

ribber loops2To create every needle loops for pile on the main bed: CO is on the ribber. With settings on the image below left (no lili buttons in use), the ribber tucks loops on every needle traveling to the right, knit all stitches moving to left. Moving to the right the main bed knits on every needle, slips the whole row moving to the left, giving the opportunity to drop stitches off. With settings on below right, lili buttons are in use, and the ribber now produces an EON needle selection, every row. Left alone the selection is what would be seen using the 1X1 card on the main bed, its repeat 1X1tuckloops on MBThe yellow yarn is a 2/8 good quality wool knit at 4.2 on the main bed, 3.2 on the ribber. Switching to a rayon twist of similar thickness created instant havoc. The dark grey was a mill end, tighter twist 2/8 wool. Red arrows show what happens when loops are caught up on gate pegs and not immediately noticed. The green arrow indicates longer loops that can happen when knit stitch on either side on the opposite bed do not knit off properly. The result is a dense wool fabric, so the tendency to roll at the top and bottom of each piece toward the “knit” side of the fabric needs to be considered at the top and bottom edges of finished pieces.

knit with no lili buttons in usemain bed loops2

In 2 color knitting, or creating isolated motifs whether on one color or striped ground, anchoring loops by tucking on every needle is no longer possible, making reverting to EON needle selection on ribber a necessity. The results are dramatically different. These swatches were made using lili buttons or hand selection on ribber, loops on the main bed. If things don’t work in one color, they will not in 2, so one color, every needle pile is a place to start evaluating the results

1X1 lili selection left me with “where are the loops?”white_lili

In the bottom section here I tried 1X1 hand selection for 2 consecutive rows,  the narrow band in center back was back to 1X1 to separate areas using lilis, at the top I used lili buttons and brought an extra needle into work on ribber before traveling to the right every third row (making needles in work on ribber an odd number), returning it to out of work before knitting back to right. Dropping stitches every 4 rows makes tracking the sequence easier. The resulting pile is far more “subtle” than samples worked with every needle tucking on the bed creating the backingyelllow-lili_500

So far I still have had no luck with getting anything that does not look like a variant of drop stitch lace when attempting patterns separated for 2 color knitting, either in embossed one color, or in striped 2 color versions.

 

Carpet or pile stitch knitting on Passap and Brother KMs 1

Pile, carpet, or loop stitch are terms used for a raised relief fabric made on KMs using both beds, with or without programmed patterning motifs on either bed. Two-color patterns are sometimes also called “punch pile”. Depending on the machine brand and on the thickness of the yarn, loops may be formed every row or every other, varying the pile density. Beds are always at half-pitch, the same setting used for every needle rib. The “needle rule” is disregarded. The first and the last needle are always on the non-patterning bed, to anchor down any loops close to the edge of the fabric. In machines with automatic end needle selection, the function is canceled. Some yarns and designs will even tolerate loops being dropped at the end of knitting. Sometimes dropping them every few rows will work. If any yarn splitting or fussy knitting off because of fiber content occurs, then dropping stitches may be needed after every row of loops formed. If using multiple colors of yarn on either of these 2 brands, having them equal gauge/weight is helpful.

The Passap knitting machines, as well as the Brother, did not have a built-in yarn feeder to facilitate knitting this fabric such as that possible in the Studio brand. Particularly with the advent of the E6000 Passap model, for a while, there was keen interest in how to produce similar fabrics. Susanna Lewis was among the first to describe knitting pile across multiple brands, whether punchcard models or, later, electronics.

The fabric loops are created with one pass of the carriage, the next row of knitting is intended to anchor down those loops, and with no needle or pusher selection, no stitches knit on the patterning bed. This fact gives one the opportunity to drop loops without disturbing pattern selection. Some of my drop stitch lace previous blog posts discuss designing such fabrics. Color separations are required. The E 6000 console performs many of these automatically, one simply has to plug in the appropriate “technique” number. The default DBJ separation made by the console in Brother electronics may not be used because blank rows for no needle selection need to be added in order to attempt the long loop or stitch fabrics. This, in turn, requires the knitter to do the work. Design rows are expanded

  • Graph        Motif        Color
  • Row 1        Row 1       Color 1
  • Row 2        Row 1       Color 2
  • a blank row is inserted  on top of each of the separated rows, so for each 2 color design row, there will now be 4 charted rows

The E 6000 has some built-in technique choice options for knitting and automatically adding blank rows in charts where needed. This allows for the locks, empty of any yarn, to travel from and then back to the color changer achieving stitch dropping. My preference is to work with stitch dropping tools instead of the extra rows “knit” without yarn. Also, if the goal is to work between KM brands, keeping the separations more compact is practical, particularly if one plans to use the end chart with a punchcard or a mylar sheet for programming.

I had tried some pile fabrics on the E 6000 in the past, found the knitting too loose for my liking, but by light felting (wool yarn) result, I had a stable, attractive fabric that could easily be cut and sewn in combination with other knit companion DBJ fabrics. Another option in wearables to add stability may be an iron-on knit interfacing used on areas of pile knit. When I pushed the back bed tension as much as physically possible with the yarn used and was happier with the result. The only problem I encountered was in thinking I could knit a few extra rows on the back bed only before dropping the knit off the machine for inspection. The old adage still applies: if more than a row or 2 are to be knit across all stitches on any single machine bed, each yarn has an optimum tension required for stitches to form properly. Pushing limits will lead to problems. I had a lovely lock jam. For wide ribs, the same principle applies the more stitches on either bed, the closer tension on that bed to what number would apply to stocking stitch on that bed.

CARPET STITCH KNITTING ON PASSAP E-6000 with release stitch tool. Use any 2 color Fairisle pattern from the pattern book that accompanies the machine. Both Passap manuals are now available for free download online. I randomly chose # 1407 for my test.
Start with all stitches on the back bed. If the piece is started with ribbing, transfer all the front bed stitches to the back bed. For test swatches, if open stitches do not matter, it is possible to do a quick single bed cast on the Passap in a couple of ways, the “broken toe” cast on will work across brands. Have an extra needle and pusher on each side of the back bed when setting up work for patterning. Set the back bed tension as tight as possible, with the front bed 1 – 1.5 tension numbers looser than the back bed. As always test a small swatch before committing to a larger one.
Start with all stitches on the back bed, with an extra pusher on each side on the back bed when setting up for patterning

One-color carpet stitch in design:  Technique 256,  handle down, black strippers are recommended. I rarely if ever use black, go for orange first, sometimes combining with one blue or switching to 2 blues if the fabric calls for it. Ignore console instructions. The back bed is set to FX  left arrow key <–, not BX as instructed. Do not use the AX setting by mistake. FX will tuck right to left, knit left to right (toward the color changer, which in Passap sits on the right side rather than on the left as in Brother machines). Knit rows help anchor loops. Back bed pushers are in 1 up, 1 down set up.
Using one arrow key means the same selection is repeated for 2 rows before the switch is made to the adjacent pusher and the corresponding needle.  The front bed is set to LX (slip) throughout. The racking handle is down (setting for every needle rib).  Two rows are knit, then the front bed stitches are dropped (Passap knitting beds are in reverse position to Japanese machines set up with their ribbers). If loops are long they may need to be pushed between the beds before knitting the next row. Passap machines have pushers for this purpose, in Brother rulers or any number of tools may be used for the same purpose.

Two-color carpet stitch:  Technique 185, black (or other) strippers, 184 may also be used, its graphic gives the added reminder for 1X1 pusher set up on the back bed. The back bed tension setting is the same as for the one color pattern, the front bed knits in LX throughout. In theory, stitches may be dropped every 4 rows. Some yarns may split and catch the alternate color requiring dropping after each color is used, others will tolerate much less frequent dropping. It is all an experiment to start with.

Again: the back bed tension must be as tight as possible, the front bed at least 1.5 tension numbers higher until tests determine what is best for the yarn being used. Multiple strands of some thinner yarn may also be worth a shot. Weights are needed on the knitting, no matter what brand machine is in use.

One-color trial: back tension too loose, note change in texture after tightening back lock tension; the loops are formed on the purl side

passap front 1col

passap back 1col

the 2 color version, with adjusted tension on the back bed

Passap front2col

note vertical stripes in backing
passap back 2col

At the end of knitting the pile, add anchoring rows of knitting on the back bed only (tension may need to be changed after a couple of rows), proceed as preferred.

embossed one color pile (black 2/8 wool)Passap black pile

One-color pile, striped background:
Technique 185, black strippers, handle down. Locks set as for above.
Knit two rows with the pile color
Set all front bed pushers down to rest position, change to the second color
Knit 2 rows, the back bed only will knit
Drop the front bed stitches, set all front bed pushers to work position-

Previous posts with info on accessories useful for dropping stitches and loops 1, 2, 3.

This method is a hack intended to emulate pile knitting created on the Studio machine. The ribber features had specific options for such fabrics. These pages are from the Singer SRP-50 ribber manual and one of their punchcard books and share some principles while illustrating setting and card design. Food for thought on any adaptation for use on other brands. Studio settings were reviewed in post-2015/02/20/pile-knitting/.

The comment on this post, clarified in an email, was actually in reference to knitting a solid singlecolor pile on the Passap. Tech 256 is intended to be used with a stitch pattern. This is a fabric that is slow to knit. My Passap had long been unused, and I had issues with yarn splitting and the yarn mast not maintaining even tension, which accounts for the occasionally pulled loops where they did not drop off properly, and the changes in some of the stitch sizes in a few rows on the reverse side. Looking at the Studio information again, I went back to the drawing board for a solution and a proof of concept swatch
1. cast on so that all stitches are on the back bed
2. knit a few rows in stocking stitch sorting the tightest tension at which your yarn will knit, also experiment with the front lock tension in order to produce as large a loop as possible that will also drop off properly, end to  begin your test with locks on the right side: 
3. bring back bed pushers to the up position, set the back lock to EX with the left arrow key. All needles will tuck moving to the left, and knit on their return to the right
3. the front lock is set to CX, it will knit on all needles to the left creating loops on the front bed, while the back lock does the same, slips all needles moving to the right.
When the locks reach the left side there will be loops on every needle on both beds. As they move from left to right, the needles on the back bed will knit, securing the loops there and anchoring the ones on the front bed while the front bed is slipped
4. with locks again on the right side, use stitch ditcher or another tool to drop off loops on the front bed, returning needles to proper work position, follow with a pass using a single eye tool to push loops between the beds, checking that none are left in the needle hooks
*make 2 more passes with locks from and returning to the right, drop off loops**, and continue from * to **
The difference in the size of the long stitches between loop rows in the photo was eliminated by tightening the tension on the back lock,  it is evident that even are anchored even in those segments. As with any fabric, the larger the intended piece, the more likely some further adjustments may have to be made.

Geometric shapes in drop stitch lace 3, end release

I began to think about color separations again, in reference to pile knitting and returned to the chart used in the circular shape in the #1 blog post in this thread. While studying it, it occurred to me that the fabric might be created by releasing the stitches at the end of the knitting. Brother punchcard books (now downloadable for free online), at the back, usually had a page with “lace-like patterns by KR” illustrating some of the possibilities in what I have been referring to as drop stitch lace. Once again, all stitches are transferred to the non-patterning bed. Selected needles whether by hand or by the machine, are in this instance, not released until the very top of the piece is reached. In long pieces of this type of lace, I find dropping stitches at regular intervals rather than waiting until the end helps things run smoothly, and gives one the episodic opportunity to evaluate proper stitch formation, to move up weights, etc. I found in my first swatch my inexpensive grey wool was really sticky and kept trying to knit with the white after the color was changed, explaining the mess on the left of the purl side image. Also, it pays to have some weight on, or at least to keep an eye on, the color changer side. As yarn colors are carried up (every 2 rows) between color changes if they are not long enough they will pull in the fabric on that side. If the end product is to be gathered at one end i.e. in a skirt, that could be an asset, but not so if the intent is to have it lie flat.

The pattern is programmed beginning on a row with black squares in it, ends on a blank row. The selection row in this instance is done from right to left (toward the color changer), the next color is picked up, and the process repeats every 2 rows. At the desired height I like to have the ribber knit the last row on only its needles before the stitches on the main bed are dropped across the width of the knit. Tugging on the comb and weights will speed things up. The fabric grows significantly in length, so watch where those weights are headed.

my first try, purl side500_991

knit side500_994

Along with changing the “nasty” grey yarn in the next swatch, I moved the knit further away from the color changer, and things went very smoothly. If where the repeat is placed in the knit matters, however, then the needle bed would need to be programmable as well to change the center needle position
500_992

500_993

the illusion knit inspired method of charting and working the released stitches does not work for this technique, the result is simply very large, striped, single color per 2 rows, loose stitches500_995End release does not work in every design. Sometimes in long pieces, portions of some rows will simply not release,  fuzzy yarns may result in the same. In addition, if long stitch shapes are distributed on knit striped grounds, the release needs to happen at a minimum when the top of each shape is reached. A sample with drop-stitch interrupted by all knit rows and with only one color released500_986

Geometric shapes in drop stitch lace 2, Brother KM

Occasionally I do play with hand knitting and charting for it. A couple of years ago I wrote on the topic of  illusion / shadow knitting. The repeat is 24 stitches wide, so it is suitable for use on punchcard machines as well.

a chart from that blog posttry_drop_stitch

the resulting hand knit, on the purl side
IMG_0823

While working out the circle in the previous post it occurred to me that the results were quite similar to shadow knits, where depending on the angle from which the fabric is viewed, images begin to appear in the striped fabric. The above chart is missing those all blank rows that result in no needle selection. The solution for using this type of color separation for drop stitch on the machine is to use double length. Other KM settings remain the same as in the previous post. The first selection row is from left to right. The big difference is that once again, there will be the same needle selection on the next row. With some needles in B and some in D, a slider or pusher will not move across the needle bed. In the past, I tried to drop stitches selectively on the main bed with rulers or whatever was handy. Now, instead, I found pushing the whole row back to B, allowed me to use my new tool to move back and forth across the needle bed, making faster work of the process, and returning needles in position for the next main bed row to be selected on the first pass, knit on the second. The swatch was casually steamed

knit side 500_987

purl side, viewed as it would appear in a sideways knit 500_988

Without the “tool”, all stitches can be brought to E and back to B with a ruler, piece of garter bar, ribber cast on comb, or another handy toy. Dropping stitches is done while carriages are on the right, they return to the left knitting only on the ribber. In the previous post, the ribber only knit first, both beds knit on the second row, and stitches were, in turn, dropped with carriages and yarn on the color changer side (L), after no needle pre-selection across the main bed.

Geometric shapes in drop stitch lace 1, Brother KM

These pattern repeats may become quite large, and are suitable for designing and downloading with software. Testing repeats in a small section to start with insures methods and accuracy when planning the larger ones. Here I would prefer a wider, brick repeat, however, I am working with mylar on a 910 so in this test, settled for a vertical repeat, the result is shown below. The pattern reminds me of shadow knits.

knit side 500_986purl side 500flippedpurl side, as it would appear in a sideways knit 500charting things outcircle drop stitch

As it stands, the repeat is 32 stitches wide, 32 rows high. The colored 3-row segments on right, if collapsed would result in an all-black row, with no overlap. Colors are changed every 2 rows unless the repeat is designed differently. Care is needed on the color changer side, making certain both colors are not picked up together as the color is changed, resulting in the ribber knitting both yarns together. KCII is used, canceling needle selection. An extra needle is put into work at each end on the main bed. This fabric widens considerably, so casting on and binding off need special consideration. Before pattern knitting starts, all stitches must be on the ribber bed alone, with needles in work, but empty, on the main bed.

I chose to knit my swatch with a first-row selection from left to right. The KC is set to slip in both directions, the ribber N/N throughout. This knits all stitches on the ribber, selects needles for main bed stitches to be knit on the next row. On RC 2, selected stitches will knit, while preselection for the next row will place all main bed needles in B position as the carriage moves to the left, leaving them ready to get “dropped”. Use your tool of choice to drop stitches and return them to the B position once again.  Color is changed, and the sequence repeats.

Previous blog posts on the topic: 2 colors per row, Japanese machines, on the Passap, an edging, stitch dropping tools, and occasional bits of info in other threads, ie. on drop stitch “bubbles”.

I prefer to automate needle selection whenever possible. Published material often requires hand techniques. Some samples are readily available for inspiration: the first image shows basic settings and some variations from the Brother pattern books. Stitches to be dropped are created on the ribber. Pattern 942 may be released at end of knitting. Cards (or mylars) may be marked to track racking handle positions, addressed in my previous post:  2015/11/07/unconventional-uses-for-punchcards-1/, or rows marked in color for other repetitive functions

from the ribber techniques book page 23:For a cumulative list of related posts please see: 2017/11/04/revisiting-drop-release-stitch-lace/ 

 

Brother KMs “pile knitting”/ ribber stitch dropping tools

I am pondering returning to some drop stitch lace experiments on my Brother KM, have blogged previously on drop stitch lace, and some of the tools that can help speed up the technique. Studio has marketed a “pile knitting” accessory usable for this purpose, still being manufactured. A recent web search revealed its cost is presently in the range of approximately 13 to 20 dollars per unit. As is, the tool does not work on the brother machine. One of the critical differences between brands is in the shape of the rear rail. Brother kms in addition have an elevated metal piece at the center of km, behind the rear rail and in front of the belt, as seen below in 2 of their different models, that hinders smooth movement by a tool across the length of the space it rests on. extra metalIssues with using the tool as manufactured: its back “rail” (1) is taller than the front (2), keeping the unit from sitting flat on the Brother bed, and also striking the metal rectangle pictured above. The front parts (3) and (4) do not align properly with the metal bed and further, interfere with use. studio p carriage:presser

Some sliding of the tool along the Brother metal bed, comparing the placement for areas within which the needles need to move, led to my altering the carriage by trimming the rear rail (1). Initially, I used a handheld electric sander, followed by a nail file to “even” things out rather than making any effort to cut the plastic.

In my revision (1) is now shorter than (2), rather than taller, and flush with the top of the curved ridges between both.

cut_offmm

full altered_500

the Brother Bulky 260 “D slider” was supplied with bulky kms1So far I have tried the altered Studio tool out on solid color knitting with hand needle selection. All knitting needs to be on ribber if the main bed is going to make stitches for pile, drop/ long stitch (aka mesh in some references) lace. For a test: with both KC buttons selected to slip, hand select needles for long stitches, put out to holding and knit across all needles. Selected stitches only will have caught loops on the main bed, all stitches knit on the ribber. Using the tool now that needles are back in B on the main bed, passing it from Right to Left brings all needles out to D, traveling back from Left to Right with it realigns them in B, dropping them. B is the needle position for needle selection on rows with no punched holes, black squares, or pixels when programmed patterning is used on the machine.

Instructions in the studio manual showing it in use, with all parts in place. A reminder: Studio needle positions are A, B, C, D, while Brother skipped the third letter of the alphabet, using A, B, D, E on its beds.studio directions

“Button holes” and “make many – increase” “lace”

An image often found on Pinterest, with its source attributed to a Vero Moda garment and accompanied by a “how-to” request, led me to give “designing” it a shot. Here, I believe, 2 layers of a garment are pictured, resulting in the stocking stitch knit that appears behind the eyelets. augudAnalyzing the fabric: a wide, flat rib is created. The equivalent of “buttonholes” with a fewer cast on than bound off stitches is in use, creating the narrowing effect at the top of each slit, four stitches are “lost”. Making multiple stitches from one (4 in this case) restores the original stitch count and returns width to the fabric. To make 4: Knit 1, purl 1, knit 1, purl 1 into the same stitch, or in this case, the bar between the 2 center stitches. Executing this is not “practical” on the knitting machine. Below is one possible method that could be adapted for groupings with slits of varying sizes.

My chart, showing 4 repeats (black border) and 3 added starting rows. Green numbers on the bottom indicate the repeat’s width (20 stitches), and on the left its height (12 rows). Slits are created every 6th row, with the right side facing. Two more stitches would be added on the far right for each side to match in the finished piece. Side borders and top and bottom bands could be made wider and longer respectively, knit in garter stitch to keep edges flat. repeatX4_31

the symbols used

screenshot_30

my unblocked sample, knit on 32 stitches in worsted weight acrylic, using #8 needles

IMG_1907

 

Pleats: ribbed , folding fabrics

RIBBED, FOLDING PLEATS result from varying the needle arrangement on both beds, usually in every needle rib. As with any knit fabric, the knit piece will fold toward the purl side along the length of the piece, not away from it. The bend can be put permanently into the fabric by leaving one or more consecutive needles on the same bed out of work. The non-working needle(s) will create a narrow vertical column of stocking stitch on the opposite bed which will roll itself toward its purl surface. By spacing the groups of non-working needles alternately between the beds, the fabric will immediately fold into pleats when taken off the machine. The same principle could be applied to hand knitting. The symbols: black dots indicate needles out of work, purple arrows the direction of the fold in the resulting fabric, and the needles in work on either bed, or any machine.

Sharp angles occur when there are enough needles in work on both beds to allow the fabric to fold over itself crisply before it is forced by the next group of out-of-work needles to fold once again in the opposite direction

needle arrangementalternating direction of folds to create sharp or knife pleats

folds up as

repeat the above configuration across the needle bed, going as narrow or as wide as desired, the series of pleats will face in one direction. Crystal pleats are very fine knife pleats often seen in sewing tuxedo shirts

double sharp or box pleats are a variation where the direction of every other pleat is reversed, extra stitch groups may be added between pleats to vary their spacing. The pleats are folded away from each other on the outside of the garment. Inverted box pleats are the same as a box pleat, but face inside the garment

added stitch group represented by a star, stitch count varied to suit

star

stars add

fold up as

box_sharp

accordion sharp pleats out of work needles evenly staggered on both beds

accordion

 fold up as

accordion sharp

Putting out-of-work needles on one bed close to out-of-work needles on the other will not allow the fabric to fold over completely before reversing direction, and will result in rounded or rolled, rather than sharp pleats. There should be one full needle rib stitch between needles out of work, highlighted below in red. Repeating the same selection results in rolled single pleats 

rolled

fold up as
curved knife

double rolled pleats mirror needle groups

double rolled

fold up ascurve1

in accordion rolled OOW needles are spaced evenly on both beds

accordion rolled

fold up as
sunray round

Types of pleats, their width, spacing, and mixing with stretches of every needle rib, may be used in whole garments or garment details ie cuffs, peplums, single-fold large pleats in skirts and jackets, etc.

Brother Ribber Techniques Book page 37 illustration

page37

Some considerations:

Normal shaping procedures are not practical in these fabrics. Tension changes are used from loose to tight to achieve shaping from wider at the bottom to narrower at the top, requiring extended swatches. The larger the finished items, such as skirts, produce more predictable results if the test swatch is a large one. A minimum of 100 rows for gauging is recommended. A test segment is made for each tension change. Swatches should be allowed to rest after being treated like the finished garment will be: blocked, pressed, washed, etc., then hung vertically and allowed to rest. After deciding the length, 2-4 inches need to be subtracted from the desired measurement to allow for the “drop” that is likely in the finished piece over time.

The fabric may look a bit different on one side than the other, either works as the exterior of the piece and is a matter of preference.

These are knits where the clicks between numbers on tension dials on machines come into use. In addition to the usual gauge calculations for knitting garments, a bit more math is needed.

The number of needles used needs to be divisible by the number of stitches used for any pleat.

Joining on inner folds rather than outer ones produces better results. Having an extra stitch at joining edges, with seaming using half a stitch on each side, will keep pleat widths constant.

The larger the pleat, the more bulk is created. Most skirts will require 3 panels with one seam worn on the center back. Yokes may be added to decrease bulk rather than having pleats meet at the waistline.

Ribbers on Japanese machines tend to knit tighter than main beds. At times an increase of 2 tension numbers may be required to get stitch sizes created by both beds to approach being equal. The other factor to consider is that the wider the plain knit vertical portion of the pleats, for stitches to knit off properly, the more tension needs to approach the # used to knit the same yarn in stocking stitch on the respective single bed. Tolerance varies between machines.

Experimentation is needed even before knitting the large swatches. It pays to be familiar with both your ribber and your yarn before trying these fabrics and to keep good notes.

Folded / true pleats occur when the groups of NOOW (needles out of work) that make the fold lines are spaced far enough apart so that the underlap of the pleat is quite wide. Rolled/ mock pleats occur when the groups of NOOW that form the fold lines are fairly close together.  Stockinette/rib combinations: vertical columns of stocking stitches are created, sometimes combined with ribbed ones. The fabric lies flat and does not fold.

Double jacquard is usually an every-needle rib fabric, so pleats can be created in conjunction with it, even planned to occur within specific areas of the design repeat. Consider yarn weight and backing technique in planning for drape.

A series of needle arrangements to try, including one worked on every other needle, which requires the pitch change from P to H. Charts were created as combined tables using Mac Numbers 5/2018

More from the Brother Ribber Techniques Book pp 108-112

Review of terms often used: full pitch = the needles of one bed are exactly opposite the needles of the other bed. Passap = racking handle up. Half pitch = the needles of one bed are directly opposite the gate pegs of the opposite bed. Passap = racking handle down. FNR: full needle rib = within the working area all needles on both beds are in working position, with the beds set at half-pitch. 1X1 rib set up= within the work area every other needle on both beds is in work in alternating positions, ribber set to full pitch. Tubular cast-on is often used for fabrics of this type, in both FNR and 1X1 rib setups.

“True” pleats have three components: the face, the fold-over or turn back, and the underside; they are formed by folding a piece of knitted fabric over. “Mock pleats”  are produced by varying stitch patterns. Sometimes the terms S and Z are used in reference to how the pleat folds, with S pleats pointing the right and Z pointing to the left. The fold-over bulk is something that needs to be planned or even compensated for when creating garments ie such as skirts, where yokes are often added to minimize bulk at the waist and hips.

Studio tips and techniques #36, by Terry Burns, is now available for free download online and begins to cover Double bed pleated skirts  tt-36-double_bed_skirts

A simple shape, an exercise in DBJ, Brother KM

When first learning how color separations work for DBJ on any machine, it is helpful to begin with a simple, easily recognized shape, to play with as many variations as possible, and study the results both in terms of the resulting fabric, and how the motif is altered by changing the machine settings. Below are copies of the handout I used when I introduced new knitters to rib jacquard. They are Brother specific. Out of habit, I tend to leave the slide lever in its center position. If a ribbed edging is needed, it is a lovely surprise if one plays with lever settings, finishes a second piece of knitting, to find after its completion that the second piece has a rib that is a different size than the other due to a missed change in lever position. My design is planned for use with punchcard machines, but a single repeat may be isolated and used to knit patterns on electronic machines as shown at bottom of the second page.

For Passap knitters, a bible on using a single shape (triangle) and creating infinite variations by technique modifications, adaptable for use on the E6000, was published in 1988

passap deco

 

Brother KM

Brother Ribber Techniques Book illustration is missing lili position for the slide lever

lili_rib

500_3

C500_2

some of my previous posts on  DBJ color separations