include old howto snippets and printed addons

README.md

@@ -1,2 +1,152 @@
 # 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 bugfix-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
+> 
+> ( #if ANYCUBIC_PROBE_VERSION == 2
+>   #define NOZZLE_TO_PROBE_OFFSET { 0, 0, -15.00 }
+> )
+
+```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 15.00 )
+  * `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/`
+
+
+## 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/)
+
+### 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
+
+## Original Anycubic Links
+
+  * https://github.com/ANYCUBIC-3D/ANYCUBIC_Kossel_Source_Code

addons/kossel_plotter_pen_holder.scad

@@ -0,0 +1,39 @@
+pen_diameter=9;  // stabilo: 9mm // weitere: 11mm
+height=65;
+thick=1.5;
+
+$fn=100;
+
+module rubberband_fix() {
+    translate([1.5,0,0]) cube([pen_diameter/2+2*thick-3,1.5,1]);
+    translate([0,1.5,0]) cube([pen_diameter/2+2*thick,1.5,1]);
+}
+
+module all_rubberband_fix() {
+            translate([0,pen_diameter+2*thick,47+4+4*thick+2]) rubberband_fix();
+            translate([0,pen_diameter+2*thick,47+4+4*thick+2-12]) rubberband_fix();
+            translate([0,pen_diameter+2*thick,47+4+4*thick+2-24]) rubberband_fix();
+            translate([0,pen_diameter+2*thick,4+thick]) rubberband_fix();
+            translate([0,pen_diameter+2*thick,4+thick+12]) rubberband_fix();
+            translate([pen_diameter/2+2*thick,0,47+4+4*thick+2]) rotate([0,0,180]) rubberband_fix();
+            translate([pen_diameter/2+2*thick,0,47+4+4*thick+2-12]) rotate([0,0,180]) rubberband_fix();
+            translate([pen_diameter/2+2*thick,0,47+4+4*thick+2-24]) rotate([0,0,180]) rubberband_fix();
+            translate([pen_diameter/2+2*thick,0,4+thick]) rotate([0,0,180]) rubberband_fix();
+            translate([pen_diameter/2+2*thick,0,4+thick+12]) rotate([0,0,180]) rubberband_fix();
+}
+
+difference() {
+    union() {
+        cube([pen_diameter/2+2*thick,pen_diameter+2*thick,height]);
+        translate([-22,0,4]) cube([22,pen_diameter+2*thick,47+4*thick]);
+        translate([-3,0,1]) cube([3,pen_diameter+2*thick,1]); // rubber band bottom
+        translate([-3,0,47+4+4*thick+2]) cube([3,pen_diameter+2*thick,1]); // rubber band top
+        all_rubberband_fix();
+    }
+    translate([pen_diameter/2+thick,pen_diameter/2+thick,-0.2]) cylinder(r=pen_diameter/2,h=height+0.4); // pen
+    translate([-20-12,0,4+2*thick+7]) cube([20,pen_diameter+2*thick,47+thick-7-1]); // fan
+    translate([-30,0,4+2*thick]) cube([30,pen_diameter+2*thick,7]); // plate
+    translate([-20-9,0,4]) cube([20,pen_diameter+2*thick,2*thick]); // bottom
+    //#translate([-30,0,0.33*height]) cube([30,pen_diameter+2*thick,2]); // rubberband cutout
+    //#translate([-30,0,0.66*height]) cube([30,pen_diameter+2*thick,2]); // rubberband cutout
+}