purlJam

# Felted Fibonacci Bowl (ADDI Machine Pattern)

**Description:**  
A structured, modern felted bowl featuring a mathematically pleasing Fibonacci stripe sequence. Designed for the ADDI Express Kingsize machine. This project is knit flat (back-and-forth) to achieve the necessary circumference for an 8-inch bowl, then seamed and felted.

**Difficulty Level:** Beginner  
**Finished Size (Approximate):** 20 cm (8 inches) diameter base; 12–15 cm height (variable depending on rim fold).

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### Materials & Tools

**Yarn Specifications:**
*   **Weight:** Worsted / Aran (10 ply).
*   **Fibre:** 100% Non-Superwash Wool. (Essential for felting. Do NOT use "Superwash" or Acrylic blends).
*   **Texture Note:** While "roving" was requested, true chunky roving will damage the machine. Use a **single-ply worsted wool** (e.g., Drops Nepal, Cascade 220, or similar) which has the "roving look" but is safe for the gears.

**Quantities (Estimated):**
*   **Colour A (Base - Cream/White):** 100g (approx 150m)
*   **Colour B (Slate Grey):** 50g
*   **Colour C (Mustard Yellow):** 50g
*   **Colour D (Deep Teal):** 50g
*   **Waste Yarn:** Small amount of contrasting acrylic yarn (will be removed).

**Tools:**
*   **ADDI Express Kingsize Knitting Machine** (46 needles).
*   **Darning Needle** (large eye).
*   **Scissors.**
*   **Washing Machine** (for felting) or bucket/plunger for hand felting.

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### Terminology & Abbreviations (UK English)
*   **st(s):** stitch(es)
*   **Row:** One complete pass of the carriage.
*   **Flat Mode:** Switch on the machine set to knit back-and-forth (not circular).
*   **Tension:** 14 rows x 13 sts = 10 cm x 10 cm (Pre-felted).

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### Stripe Sequence (Fibonacci)
The stripe width follows the sequence: 1, 1, 2, 3, 5, 8, 13, 21.
We will work a mirror pattern to ensure the join looks cohesive.

**Sequence Map:**
1.  **Block 1:** 21 rows (Colour A - White)
2.  **Block 2:** 13 rows (Colour D - Teal)
3.  **Block 3:** 8 rows (Colour A - White)
4.  **Block 4:** 5 rows (Colour B - Grey)
5.  **Block 5:** 3 rows (Colour A - White)
6.  **Block 6:** 2 rows (Colour C - Mustard)
7.  **Block 7:** 1 row (Colour A - White)
8.  **Block 8:** 1 row (Colour B - Grey)
9.  **Block 9:** 1 row (Colour A - White)
10. **Block 10:** 2 rows (Colour C - Mustard)
11. **Block 11:** 3 rows (Colour A - White)
12. **Block 12:** 5 rows (Colour B - Grey)
13. **Block 13:** 8 rows (Colour A - White)
14. **Block 14:** 13 rows (Colour D - Teal)
15. **Block 15:** 21 rows (Colour A - White)
16. **Block 16:** 21 rows (Colour A - White) *[Extra length for seam allowance/shrinkage]*

*Total Row Count: 128 rows.*

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### Instructions

#### Step 1: Set Up
1.  Set the machine switch to **Flat/Plain Knitting** (not Tube).
2.  Using **Waste Yarn**, cast on all 43 available needles. Crank 4-5 rows of waste yarn.
3.  Cut waste yarn and introduce **Colour A (White)**.

#### Step 2: The Panel
*Note: Reset your row counter to 000.*

Work the Fibonacci sequence as calculated above. Change colours by cutting the old yarn leaving a 10cm tail, and inserting the new yarn into the yarn feeder. Tie a loose knot to secure temporarily (you will weave these later).

*   **Rows 1-21:** Knit 21 rows in Colour A.
*   **Rows 22-34:** Knit 13 rows in Colour D. `[Prev count 21 + 13 = 34]`
*   **Rows 35-42:** Knit 8 rows in Colour A. `[34 + 8 = 42]`
*   **Rows 43-47:** Knit 5 rows in Colour B. `[42 + 5 = 47]`
*   **Rows 48-50:** Knit 3 rows in Colour A. `[47 + 3 = 50]`
*   **Rows 51-52:** Knit 2 rows in Colour C. `[50 + 2 = 52]`
*   **Row 53:** Knit 1 row in Colour A. `[52 + 1 = 53]`
*   **Row 54:** Knit 1 row in Colour B. `[53 + 1 = 54]`
*   **Row 55:** Knit 1 row in Colour A. `[54 + 1 = 55]`
*   **Row 56-57:** Knit 2 rows in Colour C. `[55 + 2 = 57]`
*   **Rows 58-60:** Knit 3 rows in Colour A. `[57 + 3 = 60]`
*   **Rows 61-65:** Knit 5 rows in Colour B. `[60 + 5 = 65]`
*   **Rows 66-73:** Knit 8 rows in Colour A. `[65 + 8 = 73]`
*   **Rows 74-86:** Knit 13 rows in Colour D. `[73 + 13 = 86]`
*   **Rows 87-107:** Knit 21 rows in Colour A. `[86 + 21 = 107]`
*   **Rows 108-128:** Knit 21 rows in Colour A. `[107 + 21 = 128]`

#### Step 3: Cast Off
1.  Cut the working yarn leaving a very long tail (approx 1 metre) for sewing.
2.  Thread the tail into a darning needle.
3.  Remove stitches from the machine one by one onto the needle (or crank one round without yarn to drop them, catching them carefully if you are experienced).
4.  Remove the Waste Yarn from the start.

#### Step 4: Assembly (Pre-Felt)
You now have a long rectangular panel with vertical stripes (approx 92cm long x 30cm high).

1.  **Form the Cylinder:** Bring the two short ends (Row 1 and Row 128) together.
2.  **Seam:** Using the long white tail, sew the two short ends together using **Mattress Stitch**. This creates an invisible seam on the outside. Ensure you are sewing wool-to-wool so the seam felts correctly.
3.  **Form the Bottom:**
    *   Using a new length of Colour A, perform a running stitch through the very edge stitches along one of the *long* edges (the circumference).
    *   Pull tight to gather the bottom closed (like the top of a beanie).
    *   Secure tightly. (Note: Because the fabric is thick, there may be a small hole in the very centre. You can sew this closed with a few cross stitches).
4.  **Weave Ends:** Weave in all colour change tails on the *wrong side* (inside) of the bowl. They do not need to be perfect as felting will lock them in.

#### Step 5: Felting
1.  Place the item in a washing machine. Add a "source of friction" like a pair of jeans or tennis balls (in a bag).
2.  Add a small amount of detergent.
3.  Run a hot wash cycle (40°C - 60°C) with a low water level if possible.
4.  **Check frequently:** Felt shrinkage varies. Check after 15 minutes.
5.  **Target Size:** You want the circumference to shrink from ~92cm down to ~63cm.
6.  **Shaping:**
    *   Remove from machine while damp.
    *   The fabric should feel thick and dense. If stitches are still visible/loose, wash again.
    *   Stretch and pull the damp fabric over a bowl or pot that is roughly 8 inches (20cm) in diameter to act as a mould.
    *   Flatten the bottom so it sits stable.
    *   Fold the top edge over (outwards) to create a sturdy rim. This adds structure.
7.  Allow to dry completely (this may take 24-48 hours).

### Final Technical Notes
*   **Shrinkage Calculation:** 128 rows ≈ 92cm. Target felted circumference = 20cm (diameter) × π ≈ 63cm. Shrinkage factor ≈ 32%, which is standard for worsted wool.
*   **Troubleshooting:** If the bowl is too floppy, it needs more felting (hotter water/more agitation). If it is too small, stretch it vigorously while wet.