A commandline slicer for belt-style printers utilising CuraEngine.
Ported code from blackbelt slicer by FieldOfView
sudo apt update
sudo apt install \
libgeos-dev \
libblas-dev \
liblapack-dev \
gfortran \
libjpeg-dev \
zlib1g-dev
wget https://github.com/Autodrop3d/BeltEngine/raw/main/dist/belt-engine-0.1.3.tar.gz
pip3 install ./belt-engine-0.1.3.tar.gzThe suggested way to install BeltEngine is via Pip however you may need to install additional dependencies in order to get the pip install to succeed.
wget https://github.com/Autodrop3d/BeltEngine/raw/main/dist/belt-engine-0.1.3.tar.gz
pip3 install ./belt-engine-0.1.3.tar.gzHelp Wanted: Please submit a pull request to update these docs if you install BeltEngine on an OS that is not yet documented!
Warning: This is for developers only. Normally you will not need to do this.
- Install poetry in system,
- cd into the project directly and create venv using
python3 -m venv venv - Activate virtualenv with
source venv/bin/activate - Run poetry install (this will install development version as executable in the virtualenv. That means you can just change the code and run
belt-engineand changes will take effect. Usefull for development). I did not test this in rpi (YMMV) - Change the version in pyproject file.
- Run
poetry build. This will create packages insidedistfolder.
curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python3 -
source $HOME/.poetry/env
python3 -m venv venv
source venv/bin/activate
poetry build
cd distIt is recommended to use the script from a python virtual environment. The virtual environment can be created like this:
python3 -m virtualenv ./venv
venv/scripts/activate
On Windows, use the following:
python -m virtualenv ./venv
venv\Scripts\activate
To install the dependencies on Linux, you may need to install libspatialindex with sudo apt install libspatialindex-dev. Once that is available, the Python requirements can be installed directly using pip.
(venv) pip install -r requirements.txt
On Windows, it is easier to install some python wheels manually from https://www.lfd.uci.edu/~gohlke/pythonlibs/: numpy, scipy, Rtree, Shapely, Pillow, lxxml The rest of the python dependencies can be installed using the same pip command as above.
The basic usage of the script is as follows:
(venv) python3 -m belt_engine.BeltEngine -o output.gcode model.stl
This uses the settings defined in the .def.json files in the resources/definitions folder.
Setting values can be specified in configuration files, or directly on the command-line.
Basic syntax:
(venv) python BeltEngine.py -o output.gcode model.stl -c default.ini
Contents of default.ini:
machine_width = 300
machine_depth = 300
layer_height = 0.15
Multiple configuration files can be specified, eg:
(venv) python BeltEngine.py -o output.gcode model.stl -c default.ini -c petg.ini
This way a default profile for a a certain printer type can be created with a smaller profile with just the changes to that printer type needed to print with a certain material.
Configuration files are read "in order", so setting for which values are specified both in default.ini and in petg.ini use the value from petg.ini
Basic syntax:
(venv) python BeltEngine.py -o output.gcode model.stl -s infill_sparse_density=25 -s support_enable=True
Setting values specified on the command line always override what is set in configuration files, even if those configuration files are specified after the command-line value.
(venv) python BeltEngine.py -o output.gcode model.stl -c settings/blackbelt.cfg.ini -c settings/bb_04mm.cfg.ini -s beltengine_gantry_angle=35 -s support_enable=True
python3 -m belt_engine.BeltEngine -o ./output.gcode model.stl -c ./belt_engine/settings/CR30.cfg.ini -s support_enable=True -v
python3 -m belt_engine.BeltEngine -o ./output.gcode model.stl -c ./belt_engine/settings/verttest.cfg.ini -s support_enable=True -v
Development effort sponsored by: Autodrop3d Polar3d