# SN-L00 Panel Specification

## Eurorack 6HP Panel Dimensions

| Parameter | Value | Notes |
|-----------|-------|-------|
| Width | 30.00mm | 6 × 5.08mm (6HP) |
| Height | 128.50mm | 3U standard |
| Thickness | 1.5-2.0mm | Aluminum or PCB |
| Corner radius | 0mm | Square corners |

## Mounting Holes

Eurorack standard mounting rail positions:

| Hole | X | Y | Diameter | Notes |
|------|---|---|----------|-------|
| Top Left | 7.5mm | 3.0mm | 3.2mm | Horizontal slot optional |
| Top Right | 22.5mm | 3.0mm | 3.2mm | Horizontal slot optional |
| Bottom Left | 7.5mm | 125.5mm | 3.2mm | Horizontal slot optional |
| Bottom Right | 22.5mm | 125.5mm | 3.2mm | Horizontal slot optional |

**Note**: Slots (elongated holes) of 3.2mm × 4mm allow for rail tolerance.

## Component Holes

| Component | X | Y | Diameter | Notes |
|-----------|---|---|----------|-------|
| OLED cutout | 15.0mm | 25.0mm | 28×12mm rect | Rectangular window |
| Button | 15.0mm | 45.0mm | 7.0mm | For 6mm tactile + cap |
| LED (power) | 24.0mm | 45.0mm | 3.0mm | For 3mm LED or light pipe |
| Jack TRIG | 7.5mm | 95.0mm | 6.0mm | Thonkiconn PJ398SM |
| Jack RETURN | 22.5mm | 95.0mm | 6.0mm | Thonkiconn PJ398SM |

## Panel Layout Drawing

```
      ←───── 30.00mm ─────→

      ┌─────────────────────┐ ─┬─ 0.00mm
      │  ○           ○      │  │ 3.00mm (mounting holes)
      │                     │  │
      │      SubModular     │  │ 12.00mm
      │                     │  │
      │  ┌───────────────┐  │  │
      │  │               │  │  │
      │  │     OLED      │  │  │ 19-31mm (display window)
      │  │   DISPLAY     │  │  │
      │  │               │  │  │
      │  └───────────────┘  │  │
      │                     │  │
      │       SN-L00        │  │ 38.00mm
      │                     │  │
      │         ◯     •     │  │ 45.00mm (button + LED)
      │        BTN   PWR    │  │
      │                     │  │
      │                     │  │
      │                     │  │
      │   ┌───┐     ┌───┐   │  │
      │   │   │     │   │   │  │
      │   │ ○ │     │ ○ │   │  │ 95.00mm (jacks)
      │   │   │     │   │   │  │
      │   └───┘     └───┘   │  │
      │   TRIG     RETURN   │  │ 105.00mm (labels)
      │                     │  │
      │    LATENCY TESTER   │  │ 115.00mm
      │                     │  │
      │  ○           ○      │  │ 125.50mm (mounting holes)
      └─────────────────────┘ ─┴─ 128.50mm
```

## OLED Display Window

The 0.91" 128×32 OLED module dimensions:

| Parameter | Value |
|-----------|-------|
| Module size | ~38 × 12mm |
| Active area | ~22 × 6mm |
| Mounting | Pin header on edge |

**Panel cutout**: 28mm × 10mm rectangle, centered at (15.0, 25.0)

Alternatively, a slightly larger window (30 × 12mm) gives tolerance for module alignment.

## Material Options

### Option A: Aluminum (Professional)

- Material: 1.5mm aluminum 5052-H32
- Finish: Brushed, anodized black
- Printing: Laser engraved or UV printed
- Cost: ~€10-15/panel (qty 5)

### Option B: PCB Panel (DIY-friendly)

- Material: 1.6mm FR4
- Finish: Black soldermask, ENIG
- Printing: Silkscreen white
- Cost: ~€2-5/panel (qty 5 from PCBWay)

### Option C: Acrylic (Budget)

- Material: 3mm black acrylic
- Finish: Laser cut
- Printing: Engraved or adhesive labels
- Cost: ~€3-5/panel

## PCB Panel Design

If using a PCB as the panel:

```
Front copper: None (for clean look) or decorative pattern
Back copper: Optional ground plane
Silkscreen: All text and graphics
Soldermask: Black (or custom color)
```

## Graphics & Text

### Suggested Layout

| Element | Position | Size | Font |
|---------|----------|------|------|
| "SubModular" | Top center, Y=12mm | 2.5mm | Bold sans-serif |
| "SN-L00" | Above button, Y=38mm | 3.0mm | Bold |
| "TRIG" | Below left jack, Y=105mm | 2.0mm | Regular |
| "RETURN" | Below right jack, Y=105mm | 2.0mm | Regular |
| "LATENCY TESTER" | Bottom, Y=115mm | 1.5mm | Light |

### Icon Ideas

- Small waveform graphic near jacks
- Clock/timer icon
- Sub-Net logo (if available)

## Hole Tolerances

| Hole Type | Nominal | Tolerance |
|-----------|---------|-----------|
| Mounting | 3.2mm | +0.1/-0.0 |
| Jack | 6.0mm | +0.1/-0.0 |
| Button | 7.0mm | +0.2/-0.0 |
| LED | 3.0mm | +0.1/-0.0 |

## Files to Create

For manufacturing:

1. **DXF/DWG** - For laser cutting (aluminum/acrylic)
2. **KiCad PCB** - For PCB panel
3. **SVG** - For graphics reference
4. **PDF** - Dimensional drawing

## Assembly

1. Mount OLED module with M2 standoffs or double-sided tape
2. Jacks mount through panel, secured with nut
3. Button may need extension shaft or cap
4. LED can use light pipe for front visibility