PurlbedDubied basics › The machine
Reading Dubied cam settings
Not a fabric: a small cross with numbers round it, the way the technical notes write every Dubied setting. The carriage has four identical quarters. A works on the front bed moving right, B on the rear bed moving right, C on the rear bed moving left, D on the front bed moving left.
- Two beds
Machine types that can knit it
Demo swatch
Drawn for: Double-bed hand flat (V-bed)Approximate preview worked out from the bed chart, not a photo.
Carriage settings on a Dubied
A worked example
- All needles in action knit on both beds in both directions. Moving right, the rear low butts tuck. Tension 10 on all four quarters.
How to read the cross
- The four quarters are the carriage: top rear bed, bottom front bed, left moving left, right moving right.
- Corners, knit/miss cam: 1 knits; ½ knits on high butts only and misses low butts; 0 is out of work.
- Diamond, tucking cam: 0 no tuck; ½ low butts tuck, high butts knit; 1 all needles tuck. An empty diamond is all 0.
- Numbers on the line are tension dials, 0 tightest to 20 loosest. A + means looser than your usual size.
- Set-out: long tick high butt, short tick low butt, dot out of action.
Steps
- Draw the cross.
- Read the outer corners for the knit/miss cams: top rear bed, bottom front bed, left moving left, right moving right.
- Read the numbers inside the diamond for the tucking cams.
- Read the numbers on the horizontal line for the tension.
- Set all four quarters before you start.
The full card
- What it looks like
- Not a fabric: a small cross with numbers round it, the way the technical notes write every Dubied setting.
- How it behaves
- None by itself.
- How it works
- The carriage has four identical quarters. A works on the front bed moving right, B on the rear bed moving right, C on the rear bed moving left, D on the front bed moving left. Each quarter has a tucking cam and a knit/miss cam, the raising cams, and a tension dial, the lowering cam. The knit/miss cam has three positions: 1 knits, ½ knits on high butts only and misses low butts, 0 is out of work. The tucking cam also has three: 0 no tuck, all needles knit; ½ low butts tuck, high butts knit; 1 all needles tuck. The dial runs from 0, the tightest and shortest stitch, to 20, the loosest and longest. It is set with the thumb screw on the drum at the side of the carriage.
- Machines
- Dubied hand flats. Other hand flats act the same way, with their own lever names [inference].
- Parameters
- Knit/miss 1, ½, 0. Tucking 0, ½, 1. Tension 0–20.
- Steps
- 1) Draw the cross. 2) Read the outer corners for the knit/miss cams: top rear bed, bottom front bed, left moving left, right moving right. 3) Read the numbers inside the diamond for the tucking cams. 4) Read the numbers on the horizontal line for the tension. 5) Set all four quarters before you start.
- Charting
- The cross itself. A worked example: all corners 1, top right of the diamond ½, all tensions 10 means every needle on both beds knits, rear-bed low butts tuck when the carriage moves right, tension 10 everywhere.
- Limits and common problems
- The diamond in the notes is often left empty: that means all 0. Half positions do nothing unless the needles are set out in high and low butts.
- Combines with
- dubied-needle-butts, dubied-racking.
- Pieces and assembly
- Write the cross on every technical file page next to the sample.
Written in our own words from machine manuals, knitting references and swatching. Knit a test swatch before a whole piece.