kossel/README.md

# Anycubic Kossel Plus

Set-up guide and related things for the Anycubic Kossel Linear Plus 3D Printer.

## Getting started

### Build Marlin

  * [Marlin Repository](https://github.com/MarlinFirmware/Marlin)
  * [Instructions for Anycubic Kossel](https://github.com/MarlinFirmware/Marlin/tree/bugfix-2.0.x/config/examples/delta/Anycubic/Kossel)

```bash
git clone https://github.com/MarlinFirmware/Marlin.git -b 2.0.x
cd Marlin
cp config/examples/delta/Anycubic/Kossel/Configuration.h Marlin/
cp config/examples/delta/Anycubic/Kossel/Configuration_adv.h Marlin/
```

Adjust the `Marlin/Configuration.h` for your model:

    #define ANYCUBIC_KOSSEL_PLUS
    #define ANYCUBIC_PROBE_VERSION 2
    #define ANYCUBIC_KOSSEL_ENABLE_BED 1

optional:

    ( #if ANYCUBIC_PROBE_VERSION == 2
    #define NOZZLE_TO_PROBE_OFFSET { 0, 0, -15.10 }
    )

```bash
virtualenv -p python --no-site-packages .
source bin/activate
pip install -U platformio
pio run
pio run --target upload
```

### Set up the 3d printer

  * `Configuration > Advanced Settings > Initialize EEPROM`
  * `Configuration > Delta Calibration > Set Delta Height` ( G33 P1 )
  * `Configuration > Delta Configuration > Probe Z-offset` ( Set manually to 15.10 )
  * `Configuration > Delta Calibration > Set Delta Height` ( G33 P1 )
  * connect the Z-Probe and start `Configuration > Delta Calibration > Auto Calibration`
  * `Configuration > Delta Calibration > Store Settings`
  * `Motion > Bed Leveling > Level bed` followed by `Store Settings`

use `Configuration > Advanced Settings > Probe Z Offset` to correct the difference and execute the calibration again


### optional: tune PID

#### Nozzle

(DEFAULT_Kp 22.36  DEFAULT_Ki 1.63  DEFAULT_Kd 76.48)

  * run the following G-Code (e.g. in Proterface) with the nozzle cold: 'M106 S255' & 'M303 E0 C10 S200'
  * store measured values: 'M301 P17.96 I1.44 D55.90'

#### Bed

(DEFAULT_bedKp 374.03  DEFAULT_bedKi 72.47  DEFAULT_bedKd 482.59)

  * run 'M303 E-1 C8 S60'

  * store measured values: 'M304 P254.09 I44.31 D971.39'

#### store values in eeprom:
'M500'


### Configure Cura
[Cura Profiles](https://www.thingiverse.com/thing:2367365)

Download the profiles and put the json-Files into: `$HOME/.local/share/cura/4.4/definitions/`

## Cura settings

#### Shell
  * alternate_extra_perimeter = True

#### Infill
  * infill_sparse_density = 10
  * infill_pattern = gyroid
  * zig_zaggify_infill = True

#### Material
  * material_print_temperature = 204
  * material_bed_temperature = 30
  * material_bed_temperature_layer_0 = 55
  * retraction_amount = 5
  * retraction_speed = 65

#### Speed
  * speed_print = 60
  * speed_layer_0 = 20
  * speed_equalize_flow_enabled = True
  * speed_z_hop = 60

#### Travel
  * retraction_combing = infill
  * retraction_combing_max_distance = 20
  * retraction_hop = 0.2
  * retraction_hop_enabled = True
  * retraction_hop_only_when_collides = True

#### Cooling
  * cool_fan_speed = 60
  * cool_fan_speed_0 = 20
  * cool_lift_head = True

#### Support
  * support_z_distance = 0.2
  * support_angle = 50

#### Build Plate Adhesion
  * adhesion_type = skirt
  * skirt_line_count = 2
  * skirt_brim_minimal_length = 250

#### Experimental
  * coasting_enable = True
  * bridge_settings_enabled = True


### To test
  * line_width = 0.38 (for 0.15 else: 0.4)
  * optimize wall printing order = True
  * infill_enable_travel_optimization = True
  * use adaptive layers
  * print thin walls


## Snippets

### Firmware backup

    avrdude -p m2560 -c avrispmkII -P /dev/ttyUSB0 -b 115200 -D -U flash:r:factory_kossel.hex:i
    avrdude -p m2560 -c avrispmkII -P /dev/ttyUSB0 -b 115200 -D -U eeprom:r:factory_kossel_eeprom.hex:i

### Litophanes:

[3dp.rocks Image to Litophane Converter](http://3dp.rocks/lithophane/)

### TPU

Generally not enjoyable with bowden-type extruders. Buy another printer.

Print and mount the [extruder mod](https://www.thingiverse.com/thing:2672773), otherwise the filament will jam between the extruder gear and the Ptfe-tube.

Print slowly, not too small layer height, reduce retraction distance as it won't work anyways. Disable fan, disable heated bed.

Avoid models that require many travel moves.

### Plotting

use Inkscape and the included [Gcodetools](https://github.com/cnc-club/gcodetools).
A 3d-printable pen holder (to use with rubber-bands) is attached in the `addons/` folder.

#### Prepare Image

  * Make sure to have everything on a single layer
  * At the top bar leave units at px but treat them as mm!
  * scale object to desired size
  * `Path -> Object to Path`
  * `Path -> Combine`
  * `Path -> Union`
  * `View -> Display mode -> Outline` to preview
  * if there are too many nodes: `Path -> Simplify`

#### Gcodetools

  * `Extensions -> Gcodetools -> Tools library...` select `default` tool
    * Diameter: 1.0
    * Feed: 2400
    * Penetration feed: 2400
    * Passing feed: 3600
    * Depth step: 1.0

  * `Extensions -> Gcodetools -> Orientation points`
    * 2-points mode
    * Z surface: 0.0
    * Z depth: -1.0
  * move to center of object (0,0 is center of print-bed) and a bit to the right, as the pen is mounted right from the effector (45mm)

  * select object
  * `Extensions -> Gcodetools -> Path to Gcode
    * Offset along Z axis: 11.0
    * Z safe height for G00 move over blank: 3.0
    * Units: mm

#### Print
  * home printer
  * print

#### Experimental Cura settings:

  * Layer Height: 10 mm
  * Initial Layer Height: 10 mm
  * Wall Line Count: 1
  * Top/Bottom Thickness: 10 mm
  * Print Thin Walls: True
  * Infill Density: 0 %
  * Default Printing Temperature: 0 °C
  * Build Plate Temperature: 0 °C
  * Enable Retraction: True
  * Retraction Minimum Travel: 2 mm
  * Combing Mode: off
  * Z Hop When Retracted: True
  * Z Hop Height: 2 mm
  * Enable Print Cooling: False
  * Generate Support: False
  * Build Plate Adhesion Type: none
  * Slicing Tolerance: Inclusive
  * Maximum Resolution: 0.2 mm

### LEDs (WS2812)
print [rails](https://www.thingiverse.com/thing:3076641)

and connect the led-strip to the trigorilla board at D11, +5V and GND

if you connect more than a few leds, a step-down converter is needed! don't supply them via the trigorilla's 5V rail.

In the Marlin/Configuration.h uncomment:
    #define NEOPIXEL_LED
    #define NEOPIXEL_TYPE   NEO_GRB + NEO_KHZ800
    #define NEOPIXEL_PIN 11
    #define NEOPIXEL_PIXELS 35

In the Marlin/Configuration_adv.h uncomment:
    #define LED_CONTROL_MENU

## Addons

in the directory `addons/`

see also: https://www.thingiverse.com/WarHawk8080/collections/anycubic-kossel/

## Original Anycubic Links

  * https://github.com/ANYCUBIC-3D/ANYCUBIC_Kossel_Source_Code