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florian.berthold 1ae49dc1bb Add 8HP layout with fully automated routing pipeline

- Update PCB to 8HP format (40x100mm) with v2 component placement
- Add automated routing scripts (autoroute.py runs full pipeline headlessly)
- Update panel spec and SVG for 8HP dimensions
- Board routes in <1 second with 0 unconnected pads

Scripts:
- autoroute.py: Full CLI pipeline (place → export → route → import → DRC)
- autoroute_full.py: Same pipeline for KiCad scripting console
- place_8hp.py: Component placement only
- route.sh/freeroute.sh: Routing helpers

2026-01-23 07:59:50 +01:00

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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 standard mounting rail positions:

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.

Component Holes

Component	X	Y	Diameter	Notes
OLED cutout	20.15mm	25.0mm	28×12mm rect	Rectangular window
Button	20.15mm	50.0mm	7.0mm	For 6mm tactile + cap
LED (status)	32.0mm	50.0mm	3.0mm	For 3mm LED or light pipe
Jack RETURN	10.0mm	95.0mm	6.0mm	Thonkiconn PJ398SM
Jack TRIG	30.0mm	95.0mm	6.0mm	Thonkiconn PJ398SM

Panel Layout Drawing

      ←─────── 40.30mm ───────→

      ┌───────────────────────────┐ ─┬─ 0.00mm
      │   ○                 ○     │  │ 3.00mm (mounting holes)
      │                           │  │
      │        SubModular         │  │ 12.00mm
      │                           │  │
      │    ┌─────────────────┐    │  │
      │    │                 │    │  │
      │    │      OLED       │    │  │ 19-31mm (display window)
      │    │    DISPLAY      │    │  │
      │    │                 │    │  │
      │    └─────────────────┘    │  │
      │                           │  │
      │         SN-L00            │  │ 42.00mm
      │                           │  │
      │           ◯         •     │  │ 50.00mm (button + LED)
      │          BTN       PWR    │  │
      │                           │  │
      │                           │  │
      │                           │  │
      │     ┌───┐       ┌───┐     │  │
      │     │   │       │   │     │  │
      │     │ ○ │       │ ○ │     │  │ 95.00mm (jacks)
      │     │   │       │   │     │  │
      │     └───┘       └───┘     │  │
      │    RETURN        TRIG     │  │ 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 (20.15, 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=42mm	3.0mm	Bold
"RETURN"	Below left jack, Y=105mm	2.0mm	Regular
"TRIG"	Below right jack, Y=105mm	2.0mm	Regular
"LATENCY TESTER"	Bottom, Y=115mm	1.5mm	Light

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

PANEL_SPEC.md - This file
SN-L00_panel.svg - Vector graphic for manufacturing
SN-L00_panel.kicad_pcb - PCB panel (if using FR4)

Assembly

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

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