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— bl_touch [2017/06/23 12:31] (current)
sschueller created
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 +====== Anycubic Kossel Plus ======
 +
 +===== BL / 3D Touch Setup =====
 +==== Hardware ====
 +  - Print bracket such as: http://​www.thingiverse.com/​thing:​2251115
 +  - Connect White/Black wire to z-min-endstop (S = (signal - white), - = (minus - black)). Orientation doesn'​t matter
 +  - Connect Brown/​Red/​Orange wire to servo 0 port (S = Orange, + = Red, - = Brown) NOTE: on the Tri Gorila Board + and - are reversed. ​
 +{{::​20170513_152037.jpg?​direct&​300|}}{{::​20170513_164053.jpg?​direct&​300|}}
 +
 +  - Powering on system should make LED light red and move the pin a few times
 +
 +
 +==== Software (Marlin) ====
 +
 +Using release from Anycubic: https://​drive.google.com/​drive/​u/​0/​folders/​0B8VIB533cgdMa1czMW5hNWlXYW8
 +Some of these may already be set.
 +
 +<code Configuration.h>​
 +#define MOTHERBOARD 43 // using 33 doesn'​t work
 +
 +#define BLTOUCH // turn on probe
 +
 +// these values strongly depend on your mount!
 +#define X_PROBE_OFFSET_FROM_EXTRUDER 36.1     // X offset: -left  +right ​ [of the nozzle]
 +#define Y_PROBE_OFFSET_FROM_EXTRUDER -29   // Y offset: -front +behind [the nozzle]
 +#define Z_PROBE_OFFSET_FROM_EXTRUDER -3.6  // Z offset: -below +above ​ [the nozzle]
 +
 +#define XY_PROBE_SPEED 6000
 +
 +#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN
 +
 +#define Z_CLEARANCE_DEPLOY_PROBE ​  50 // Z Clearance for Deploy/Stow
 +#define Z_CLEARANCE_BETWEEN_PROBES 10 // Z Clearance between probe points
 +
 +#define AUTO_BED_LEVELING_BILINEAR
 +
 +// works better but still not ideal
 +#define SAFETY_MARGIN 5
 +#define DELTA_PROBEABLE_RADIUS (DELTA_PRINTABLE_RADIUS - sqrt(sq(X_PROBE_OFFSET_FROM_EXTRUDER)+sq(Y_PROBE_OFFSET_FROM_EXTRUDER)) - SAFETY_MARGIN ) 
 +//  #define DELTA_PROBEABLE_RADIUS (DELTA_PRINTABLE_RADIUS -10)
 +#define LEFT_PROBE_BED_POSITION -(DELTA_PROBEABLE_RADIUS)
 +#define RIGHT_PROBE_BED_POSITION DELTA_PROBEABLE_RADIUS
 +#define FRONT_PROBE_BED_POSITION -(DELTA_PROBEABLE_RADIUS)
 +#define BACK_PROBE_BED_POSITION DELTA_PROBEABLE_RADIUS
 +
 +</​code>​
 +
 +==== Test the probe works ====
 +Send G codes ''​M280 P0 S10''​ and ''​M280 P0 S90''​. Probe should extend on first command and retract on second.
 +
 +==== Finding probe to hotend offset (Marlin) ====
 +  - make a mark on the bed with a pen or sticker
 +  - Move the hotend to this exact location (use G codes, e.g. ''​G1X10Y-10Z10''​ moves the probe to X +10mm, Y -10mm and Z +10mm)
 +  - Put a paper under the probe and move it until the paper sticks a bit. Use ''​G1Z5'',​ ''​G1Z4''​ etc. until you reach the paper
 +  - Reset all values to Zero: ''​G92 X0 Y0 Z0''​
 +  - Move the hotend off the mark ''​G1Z10''​
 +  - Now move the probe exactly over the mark using G codes like above
 +  - once you are exactly on the mark extend the probe with ''​M280 P0 S10''​ (if the probe doesnt move reset it with ''​M280 P0 S260''​)
 +  - start lowering the probe slowly using ''​G1Z9'',​ ''​G1Z8''​ etc. once you are close start adding decimals
 +  - when the probe activates note down the numbers on the LCD.
 +  - In my case I had ''​X-36.1 Y 29 Z 3.6'',​ now enter the offsets in Configuration.h (NOTE: X shows a negative, that means enter it possitve in Marlin, Y is entered as a negative. )
 +
 +==== Trigger Auto Leveling ====
 +
 +  - Enable logging to see what is going on ''​M111 S247''​
 +  - Zero Z, using ''​G28''​
 +  - Level Bed ''​G29''​ (use ''​G29 V4''​ to see more log info)
 +
 +==== Update Slicer ====
 +  - In your slicer make sure you set the printer to do a ''​G28''​ then a ''​G29''​ before each print.
 +
 +NOTICE: Doing a ''​G28''​ resets the autolevel values! I am still trying to figure out how to get Octoprint to not reset my auto level values before printing.
 +