home-3d-printing

home-3d-printing is a skill for Claude Code from larsboes/Axon. It costs 139 tokens per session (1,226 once invoked), scanned A, original, MIT.

A local command-line guide for operating a Klipper/Moonraker 3D printer, including preparing a model and controlling the printer. Klipper and Moonraker are software used to run and communicate with some 3D printers.

In plain words
What is it for?
Slicing STL or 3MF models with OrcaSlicer, uploading G-code, arming and starting prints, monitoring them, pausing or cancelling, and using the emergency stop.
Why use it?
It keeps printer settings and hard temperature limits in configuration and requires an explicit safety step before heating. This reduces the risk of starting a print with unsafe settings.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Slicing STL or 3MF models with OrcaSlicer, uploading G-code, arming and starting prints, monitoring them, pausing or cancelling, and using the emergency stop.

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Install with agentmods
npx agentmods add skills/larsboes/axon/home-3d-printing
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add larsboes/Axon --skill home-3d-printing
Clone the repo
git clone --depth 1 https://github.com/larsboes/Axon

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for home-3d-printing

README.md
[![agentmods](https://agentmods.dev/badge/skills/larsboes/axon/home-3d-printing/github.svg)](https://agentmods.dev/skills/larsboes/axon/home-3d-printing)
Your own site
<a href="https://agentmods.dev/skills/larsboes/axon/home-3d-printing"><img src="https://agentmods.dev/badge/skills/larsboes/axon/home-3d-printing/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for home-3d-printing

Your own site · 80×15
<a href="https://agentmods.dev/skills/larsboes/axon/home-3d-printing"><img src="https://agentmods.dev/badge/skills/larsboes/axon/home-3d-printing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 139 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,226 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00139 $0.01226
Opus 5 $0.00069 $0.00613
Sonnet 5 $0.00028 $0.00245
Haiku 4.5 $0.00014 $0.00123

Measured 10d ago against content hash 59219993757d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

home-3d-printing scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Never curl the heat/move endpoints directly to skip the gate.
Packs/3d-printing/skills/home-3d-printing/SKILL.md · 60 lines

How it starts

The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Home 3D Printing

Drive the printer through $PC (printctl) — the source of truth; this skill is the runbook. Physical hardware that heats and moves: safety gates are not optional, and no step may route around them.

This setup is not hardcoded. Printer host, model, nozzle, material and safety caps all live in $AXON_PERSONAL_ROOT/config/printing.json and are surfaced (and, when the printer is on, live-discovered) by $PC doctor. Run $PC doctor first and read the real values off it — never assume a printer model or temp from this document.

Variables

var value notes
$PC scripts/printctl launcher → $AXON_ROOT/capabilities/printing/printctl.py (runs via uv)
$HOST $MODEL $MATERIAL $NOZZLE_MAX $BED_MAX (from config) host, printer model, loaded filament, hard temp caps — all read from the overlay config; $PC doctor prints them. Never inline them here.
$STL model to slice (.stl/.3mf)
$GCODE ${STL%.*}.gcode slice output, sits next to $STL
$FN $(basename $GCODE) filename as the printer sees it (arm/start key)
$WALLS / $INFILL 4–6 / 40–50% gyroid generic strength-part guidance, not a fixed setting

Safety model — non-negotiable

  • Caps ($NOZZLE_MAX/$BED_MAX) enforced on sliced gcode and at arm. Above → refused.
  • Arm-before-heat: start/resume refuse unless $FN was armed. Arming IS the human "go"; after it, start+monitor run unattended within caps.
  • Runaway temp/motion → $PC estop immediately (halts Klipper; needs FIRMWARE_RESTART after).
  • Never curl the heat/move endpoints directly to skip the gate.

Preflight — gate on the output

$PC doctor, then branch:

  • moonraker: REACHABLE ✓ → continue.
  • moonraker: unreachable → printer off/asleep or off-LAN. Stop, ask the user to power it on. Do not retry blindly.
  • any preset shows (unset) or not found → headless slicing unconfigured. Read references/setup.md, stop at the one-time GUI step (needs the user).

Read the full file on GitHub · 60 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 60 lines · 139 tokens per session scan A 59219993757d

Subscribe to this mod's changes

home-3d-printing is a skill published in the GitHub repository larsboes/Axon (1 stars, last pushed yesterday), licensed MIT. It adds 139 tokens to every session and 1,226 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.