hp-sim5 simulates the physics of Hangprinter. hp-sim5 currently simulates:
- How lines behave
- How spools behave
- How motors behave
- etc etc
The goal is to reproduce real world Hangprints as closely as possible.
The Slideprinter demo reproduces infills with resonance patterns, ringing after
sharp corners, slack lines along smooth curves and even lost steps from overly
aggressive moves. All these issues become easier to understand and fix with
this tool.
Try the live demos:
- A 2d Hangprinter called Slideprinter at tobbelobb.github.io/hp-sim5/hp-sim/
- A flipper game that tests the Cable Physics engine at tobbelobb.github.io/hp-sim5/flipper
Intended uses:
- Hardware design -- reduce guesswork when building new machines.
- Digital twin -- run the simulator before and during prints to optimise speed and quality while avoiding catastrophes.
- Software design -- enables rapid firmware development and experiments with advanced control and AI.
hp-sim5 have two fully functional, equivalent implementations; one in JavaScript and one in Python. hp-sim5 includes a Cable Joints library and XPBD physics engine inspired and coded from the work of Matthias Müller.
For a deeper dive into the physics engine and the classic flipper demo see
README_adv.md.
- Install Node.js
- In this repository run:
npm install # only needed the first time npx vite # Needed every time to serve the html and js
- Open http://localhost:5173/hp-sim5/hp-sim in your browser. There's also http://localhost:5173/hp-sim5/flipper for the flipper demo.
- Hack away!
hp-sim5 is part of an effort to automate the Hangprinter Project. We want to automate everything except the actual users, and digitize everything except the finished working machines and their output.