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better documenting, add photos and schmatics

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Nikolay Khabarov
2017-07-15 02:17:57 +03:00
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README.md
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@@ -40,6 +40,12 @@ Circular interpolation for XY, ZX, YZ planes is supported.
Spindle with rpm control is supported.
Extruder and bed heaters are supported.
# Hardware
Currently, this project supports Raspberry Pi 1-3. Developed and tested with
RPI3. And 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
3.5 mm jack(PWM module), so do not use it. HDMI audio works._
# Config
All configs are stored in [config.py](./cnc/config.py) and contain hardware
properties, limitations and pin names for hardware control.
@@ -47,47 +53,48 @@ Raspberry Pi implementation should be connected to A4988, DRV8825 or any other
stepper motor drivers with DIR and STEP pin inputs.
Default config is created for Raspberry Pi 2-3 and this wiring config:
| circuit | RPi pin | RAMPS pin | Note |
| Circuit | RPi pin | RAMPS pin | Note |
|-----------------|-------------|--------------------------|------------------|
| X step | gpio21 | A0 | |
| X dir | gpio20 | A1 | |
| steppers enable | gpio26 | A2, A8, D24, D34, D38 | all steppers |
| Y step | gpio16 | A6 | |
| Y dir | gpio19 | A7 | |
| Z dir | gpio13 | D48 | |
| Z step | gpio12 | D46 | |
| E1 step | gpio6 | D36 | reserve |
| E1 dir | gpio5 | D34 | reserve |
| E0 dir | gpio7 | D28 | |
| E0 step | gpio8 | D26 | |
| Z max | gpio11 | D19 | |
| Z min | gpio25 | D18 | |
| Y max | gpio9 | D15 | |
| Y min | gpio10 | D14 | |
| X max | gpio24 | D2 | |
| X min | gpio23 | D3 | |
| heater bed | gpio22 | D8 | |
| heater 2 | gpio27 | D9 | uses for fan |
| heater 1 | gpio18 | D10 | |
| ser 1 | gpio17 | D11 | reserve |
| ser 2 | gpio15 | D6 | reserve |
| ser 3 | gpio4 | D5 | reserve |
| ser 4 | gpio14 | D4 | reserve |
| I2C SCL | gpio3 | - | to ads111x |
| I2C SDA | gpio2 | - | to ads111x |
| X step | GPIO21 | A0 | |
| X dir | GPIO20 | A1 | |
| steppers enable | GPIO26 | A2, A8, D24, D34, D38 | all steppers |
| Y step | GPIO16 | A6 | |
| Y dir | GPIO19 | A7 | |
| Z dir | GPIO13 | D48 | |
| Z step | GPIO12 | D46 | |
| E1 step | GPIO6 | D36 | reserve |
| E1 dir | GPIO5 | D34 | reserve |
| E0 dir | GPIO7 | D28 | |
| E0 step | GPIO8 | D26 | |
| Z max | GPIO11 | D19 | |
| Z min | GPIO25 | D18 | |
| Y max | GPIO9 | D15 | |
| Y min | GPIO10 | D14 | |
| X max | GPIO24 | D2 | |
| X min | GPIO23 | D3 | |
| heater bed | GPIO22 | D8 | |
| heater 2 | GPIO27 | D9 | uses for fan |
| heater 1 | GPIO18 | D10 | |
| ser 1 | GPIO17 | D11 | reserve |
| ser 2 | GPIO15 | D6 | reserve |
| ser 3 | GPIO4 | D5 | reserve |
| ser 4 | GPIO14 | D4 | reserve |
| I2C SCL | GPIO3 | - | to ads111x |
| I2C SDA | GPIO2 | - | to ads111x |
| ads1115 ch0 | - | A15 | heater 2 - nc |
| ads1115 ch1 | - | A14 | bed sensor |
| ads1115 ch2 | - | A13 | extruder sensor |
| ads1115 ch3 | - | - | not connected |
So having Raspberry Pi connected this way, there is no need to configure
pin map for project.
pin map for project. [RAMPS v1.4](http://reprap.org/wiki/RAMPS_1.4) board can
be used for this purpose. Full reference circuit diagram and photos of
assembled controller(click to enlarge):
[![circuit_small](https://user-images.githubusercontent.com/8740775/28233810-40773186-6902-11e7-8496-5750babfcf44.jpg)](https://user-images.githubusercontent.com/8740775/28233650-d64060e0-6900-11e7-8605-6475384fd2f7.png)
[![sample_front_small](https://user-images.githubusercontent.com/8740775/28233812-407820c8-6902-11e7-8de1-35c03509c0e5.jpg)](https://user-images.githubusercontent.com/8740775/28233649-d6402800-6900-11e7-8dca-cd35c8292e0c.jpg)
[![sample_back_small](https://user-images.githubusercontent.com/8740775/28233879-db96ea1c-6902-11e7-9298-11150476084b.jpg)](https://user-images.githubusercontent.com/8740775/28233648-d63fa0c4-6900-11e7-8fab-2055e035a6cb.jpg)
[![sample_mounted_small](https://user-images.githubusercontent.com/8740775/28233811-40777e8e-6902-11e7-8899-5991860d182c.jpg)](https://user-images.githubusercontent.com/8740775/28233652-d65f82ea-6900-11e7-9e80-d8b0c9238f95.jpg)
# Hardware
Currently, this project supports Raspberry Pi 1-3. Developed and tested with
RPI3. And 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
3.5 mm jack(PWM module), so do not use it. HDMI audio works._
# Usage
Just clone this repo and run `./pycnc` from repo root. It will start in