# 3D Printing Project

## Project Overview

3D printing setup and management for two Creality Ender 3 printers, with OctoPrint remote control and IP camera monitoring via a Raspberry Pi proxy.

## Hardware

### Printer
| Printer | Speed | Extruder | Auto-Level | Build Volume | Hot End |
|---|---|---|---|---|---|
| Creality Ender 3 V3 SE | 250 mm/s | Sprite Direct Drive | CR Touch | 220x220x250 mm | Standard |

### Filament Inventory
| Material | Color | Brand | Diameter |
|---|---|---|---|
| PLA | White | OVERTURE | 1.75 mm |
| PLA | Black | OVERTURE | 1.75 mm |
| PLA | Black | ELEGOO | 1.75 mm |
| PLA | Dark Blue | ELEGOO | 1.75 mm |
| PLA | Transparent | SUNLU | 1.75 mm |
| ABS | Black | Creality | 1.75 mm |
| PETG | Red | Creality | 1.75 mm |
| PETG | Black | Creality | 1.75 mm |

### Accessories
- Creality Hardened Steel MK8 Nozzles (5-pack)

## Remote Printing Infrastructure

### Raspberry Pi 3 B+ (`seth-pi`)
- **Hostname:** seth-pi
- **OS:** Debian 13 (Raspberry Pi OS Lite)
- **User:** seth (key-only SSH, no root login)
- **wlan0:** 192.168.0.102 (main network, DHCP) — default route
- **eth0:** 192.168.0.101/24 (isolated camera router subnet)
- **WiFi SSID:** WiFrei

### OctoPrint
- **URL:** http://octopi.sethpc.xyz (port 5000 on Pi)
- **API key:** see `octopi.sethpc.xzy_api_key.md`

### go2rtc (v1.9.14)
Restreams both cameras with H.264 hardware transcoding and MJPEG fallback.
- **API:** http://192.168.0.102:1984
- **RTSP:** rtsp://192.168.0.102:8554
- **Streams:**
  - `cam1` / `cam1_mjpeg` — Camera 1 (192.168.0.100)
  - `cam2` / `cam2_mjpeg` — Camera 2 (192.168.0.103)

### IP Cameras — TENVIS (on isolated eth0 subnet)
Both TENVIS cameras use credentials `admin:admin` and expose RTSP on port 554 (`/11` path), HTTP on 80, and ONVIF on 8080.
- **Internal model:** C9F0SeZ0N0P4L0 (Hi3510-based SoC)
- **Firmware:** V9.1.6.1.24-20170925
- **Hardware version:** V1.0.0.1
- **CGI interface:** `/cgi-bin/hi3510/param.cgi`
- **cam2 has an SD card inserted** (59GB)

| Camera | Isolated IP | Proxy Ports (on .102) |
|---|---|---|
| cam1 | 192.168.0.100 | HTTP:18080, ONVIF:18081, RTSP:18554 |
| cam2 | 192.168.0.103 | HTTP:28080, ONVIF:28081, RTSP:28554 |

### Proxy Architecture
The Pi bridges two networks:
- **eth0** (192.168.0.101) connects to an isolated router with the two IP cameras
- **wlan0** (192.168.0.102) connects to the main homelab network
- **socat** systemd services proxy each camera port from the isolated subnet to the main network
- Port scheme: `1xxxx` = cam1, `2xxxx` = cam2

Proxy services (all systemd, auto-restart):
- `ipcam-proxy-http.service` — 18080 -> 192.168.0.100:80
- `ipcam-proxy-onvif.service` — 18081 -> 192.168.0.100:8080
- `ipcam-proxy-rtsp.service` — 18554 -> 192.168.0.100:554
- `ipcam2-proxy-http.service` — 28080 -> 192.168.0.103:80
- `ipcam2-proxy-onvif.service` — 28081 -> 192.168.0.103:8080
- `ipcam2-proxy-rtsp.service` — 28554 -> 192.168.0.103:554

## Camera Control Panel
- **URL:** http://192.168.0.220:8090
- **Location:** `/opt/cam-control/server.py` on CT 241 (Frigate)
- **Service:** `cam-control.service` (systemd, enabled)
- **Features:** Live MJPEG feeds, PTZ D-pad (continuous/step), speed control, flip/mirror toggles
- **Source:** `./cam-control/server.py`

## Gitea
- **Repo:** https://git.sethpc.xyz/Seth/3d-printing
- **Remote:** `https://Seth:REDACTED_GITEA_TOKEN@git.sethpc.xyz/Seth/3d-printing.git`

## Conventions
- Camera credentials: admin/admin (default, isolated network only)
- Pi SSH: key-only as `seth`, no password auth
- Internal password for homelab services: REDACTED_PASSWORD