# SN-L00 Panel Specification

## Eurorack 8HP Panel Dimensions

| Parameter | Value | Notes |
|-----------|-------|-------|
| Width | 40.30mm | 8 × 5.08mm (8HP) |
| Height | 128.50mm | 3U standard |
| Thickness | 1.5-2.0mm | Aluminum or PCB |
| Corner radius | 0mm | Square corners |

## Mounting Holes (Eurorack Rails)

| Hole | X | Y | Diameter | Notes |
|------|---|---|----------|-------|
| Top Left | 7.5mm | 3.0mm | 3.2mm | Horizontal slot optional |
| Top Right | 32.8mm | 3.0mm | 3.2mm | Horizontal slot optional |
| Bottom Left | 7.5mm | 125.5mm | 3.2mm | Horizontal slot optional |
| Bottom Right | 32.8mm | 125.5mm | 3.2mm | Horizontal slot optional |

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

## PCB Mounting

The PCB (40×100mm) mounts horizontally behind the panel.

| Parameter | Value | Notes |
|-----------|-------|-------|
| PCB offset from panel top | 10mm | PCB top edge at panel Y=10mm |
| PCB offset from panel bottom | 18.5mm | Clearance for power header |
| Standoff length | 10mm | M3 hex standoffs |
| Standoff holes | 3.2mm | M3 clearance |

### Standoff Mounting Holes

| Hole | Panel X | Panel Y | PCB X | PCB Y |
|------|---------|---------|-------|-------|
| Top Left | 5mm | 15mm | 5mm | 5mm |
| Top Right | 35mm | 15mm | 35mm | 5mm |
| Bottom Left | 5mm | 85mm | 5mm | 75mm |
| Bottom Right | 35mm | 85mm | 35mm | 75mm |

Note: Bottom holes positioned above power section for routing clearance.

## Component Holes

All positions aligned with PCB layout (PCB offset = 10mm).

| Component | Panel X | Panel Y | Diameter | Notes |
|-----------|---------|---------|----------|-------|
| OLED cutout | 20mm | 25mm | 28×12mm rect | Rectangular window |
| Jack RETURN | 10mm | 45mm | 6.0mm | Thonkiconn PJ398SM |
| Jack TRIG | 30mm | 45mm | 6.0mm | Thonkiconn PJ398SM |
| Button | 20mm | 58mm | 7.0mm | For 6mm tactile + cap |
| LED (status) | 32mm | 58mm | 3.0mm | For 3mm LED or light pipe |

## Panel Layout Drawing

```
      ←─────── 40.30mm ───────→

      ┌───────────────────────────┐ ─┬─ 0mm
      │   ○                 ○     │  │ 3mm (rail mounting holes)
      │                           │  │
      │        SubModular         │  │ 12mm
      │ ·                     ·   │  │ 15mm (standoff holes)
      │    ┌─────────────────┐    │  │
      │    │                 │    │  │
      │    │      OLED       │    │  │ 19-31mm (display window @ 25mm)
      │    │    DISPLAY      │    │  │
      │    │                 │    │  │
      │    └─────────────────┘    │  │
      │                           │  │
      │     ┌───┐       ┌───┐     │  │
      │     │   │       │   │     │  │
      │     │ ○ │       │ ○ │     │  │ 45mm (jacks)
      │     │   │       │   │     │  │
      │     └───┘       └───┘     │  │
      │    RETURN        TRIG     │  │ 52mm (labels)
      │                           │  │
      │           ◯         •     │  │ 58mm (button + LED)
      │          BTN       PWR    │  │
      │                           │  │
      │         SN-L00            │  │ 72mm
      │                           │  │
      │                           │  │
      │                           │  │
      │      LATENCY TESTER       │  │ 95mm
      │                           │  │
      │ ·                     ·   │  │ 85mm (standoff holes)
      │                           │  │
      │                           │  │
      │   ○                 ○     │  │ 125.5mm (rail mounting holes)
      └───────────────────────────┘ ─┴─ 128.5mm
```

## 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 × 12mm rectangle, centered at (20mm, 25mm)

## 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

## Hardware Required

| Item | Qty | Notes |
|------|-----|-------|
| M3×10mm standoff | 4 | Hex, male-female |
| M3×6mm screw | 4 | Pan head, for PCB side |
| M3 nut | 4 | Or use female-female standoffs |
| Thonkiconn nut | 2 | Included with jacks |

## Assembly

1. Insert standoffs through panel holes, secure with nuts on front
2. Mount jacks through panel, finger-tighten nuts
3. Align PCB with standoffs and jack pins
4. Secure PCB to standoffs with M3 screws
5. Fully tighten jack nuts
6. Attach OLED module to PCB header