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spindle implementation

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Nikolay Khabarov
2017-05-14 02:03:19 +03:00
parent 7229bc1c4f
commit 12894f2795
7 changed files with 217 additions and 47 deletions
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README.md
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@@ -20,19 +20,23 @@ G0, G1, G4, G20, G21, G28, G90, G91, G92, M2, M3, M5, M30
Commands can be easily added, see [gmachine.py](./cnc/gmachine.py) file.
# Config
All config is stored in [config.py](./cnc/config.py) and contains hardware
All configs are stored in [config.py](./cnc/config.py) and contain hardware
properties, limitations and pin names for hardware control.
Raspberry Pi implementation should be connected to A4988, DRV8825 or any other
stepper motor controllers with DIR and STEP pin inputs.
stepper motor drivers with DIR and STEP pin inputs.
Default config is created for Raspberry Pi 2-3 and this wiring diagram:
![](https://cloud.githubusercontent.com/assets/8740775/26024664/bc13d5a6-37de-11e7-98ed-9391109fcfd0.jpg)
So having Raspberry Pi connected this was, there is no need to configure
So having Raspberry Pi connected this way, there is no need to configure
pin map for project.
_Note: spindle control is not implemented yet_
# Hardware
Currently, this project supports Raspberry Pi 1-3. Tested with RPI2. But there
is a way to add new boards. See [hal.py](./cnc/hal.py) file.
_Note: Current Raspberry Pi implementation uses the same resources as on board
GPU(memory). So video output will not work with this project. Use ssh
connection to board. And do not connect HDMI cable, otherwise project would not
run. Probably, increasing of GPU dedicated memory(at least to 64 MB) could solve
it and allow to work project and GPU together, but it was never tested._
# Usage
Just clone this repo and run `./pycnc` from repo root. It will start in