Table of Contents

Anet A8 3D Printer

Summary

Jun 19, 2017
Review, assembly and experiments with the Anet A8 sub-$200 3D Printer.

Upgrades

Printable Upgrades

Software

Network Setup

OrangePI

/etc/systemd/system/octoprint.service

[Unit]
Description=OctoPrint 3D Printer Manager
After=network.target

[Service]
ExecStart=/home/octoprint/OctoPrint/venv/bin/octoprint
Restart=on-failure
User=octoprint
Group=octoprint

[Install]
WantedBy=multi-user.target

/etc/systemd/system/octoprint-tunnel.service

[Unit]
Description=Tunnel to public OctoPrint server
After=network.target

[Service]
ExecStart=/usr/bin/ssh -N -R 5000:127.0.0.1:5000 octoprint.airwebreathe.org.uk
Restart=on-failure
User=octoprint
Group=octoprint

[Install]
WantedBy=multi-user.target

Digital Ocean VPS

/etc/nginx/sites-available/octoprint.airwebreathe.org.uk

proxy_cache_path /var/lib/nginx/cache/octoprint levels=1:2 keys_zone=octoprint:1m
    max_size=128m inactive=10d use_temp_path=off;

server {

    if ($scheme != "https") {
        return 301 https://$host$request_uri;
    }
    ssl_stapling_verify on;
    ssl_stapling on;
    ssl_trusted_certificate /etc/letsencrypt/live/octoprint.airwebreathe.org.uk/chain.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_certificate_key /etc/letsencrypt/live/octoprint.airwebreathe.org.uk/privkey.pem;
    ssl_certificate /etc/letsencrypt/live/octoprint.airwebreathe.org.uk/fullchain.pem;
    error_log /var/lib/letsencrypt/error.log;
    access_log /var/lib/letsencrypt/access.log;
    listen 443 ssl;
    listen 80;
    listen [::]:80;
    server_name octoprint.airwebreathe.org.uk;
    autoindex off;
    client_max_body_size 15M;
    client_body_buffer_size 128k;
    index index.html index.htm index.php doku.php;
    access_log /var/log/nginx/octoprint.airwebreathe.org.uk/access.log;
    error_log /var/log/nginx/octoprint.airwebreathe.org.uk/error.log;

    location /sockjs/ {
        proxy_pass http://127.0.0.1:5000/sockjs/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }

    location / {
        proxy_cache octoprint;
        proxy_pass http://127.0.0.1:5000;
    }
}