SN-L00/hardware/panel/PANEL_SPEC.md

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