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--- projects:3dprinting:anycubic_i3_mega_getting_and_adapting_firmware [2020/02/22 15:07] – [Configuration to use BLTouch automatically] admin
+++ projects:3dprinting:anycubic_i3_mega_getting_and_adapting_firmware [2020/02/22 22:24] – admin
@@ Line 70: / Line 70: @@
   - Printers preferences\\ \\ {{  :projects:3dprinting:003.machine_settings_upgrade_firmware.png?563x246  }}\\ \\
   - Upgrade Firmware\\ \\ {{  :projects:3dprinting:005.machine_settings_upgrade_firmware.png?563x208  }}
 ===== Test and calibration procedure =====
 This test and calibration procedure is based on the [[https://github.com/MNieddu91/Marlin-AI3M-BLTouch#anycubic-i3-mega-marlin-bltouch-119-by-davidramiro--mnieddu91|github description of davidramiro]].
@@ Line 141: / Line 142: @@
 This will as well solve the "EEPROM version mismatch" warning.
-===== Cura Machine settings for BLTouch =====
-Apart from adding the automatic BLTouch calibration before printing, there are many settings in Cura which affect printing quality. Keep in mind that even if BLTouch calibration is configured and executed correctly, printing quality may still be adverse due to other settings.
-==== 1. Automatic bed calibration ====
-To make sure that when printing, the bed calibration automatically takes place, add G29 under the latest line containing G28 in the Cura machine settings. The following images show where to find and edit the machine settings:
-  - Cura settings -> Printer -> Manage printers\\ \\ {{:projects:3dprinting:001.machine_settings_manage_printers.png?563×164}}\\ \\
-  - Machine Settings\\ \\ {{:projects:3dprinting:002.machine_settings.settings_button.png?563x246}}\\ \\
-  - Place "G29 - Automatic Bed Leveling" under the last G28\\ \\ {{:projects:3dprinting:004.Machine_settings_settings.png?563x571}}
-==== 2. Initial sticking layer ====
-Additionally, change the extrude feed stock ((The line with "extrude Xmm of feed stock")) from 3 into 5: G1 F100 E5
-==== 3. Cura {speed_travel} Bug ====
-In Cura 4.4.2 there is a [[https://github.com/Ultimaker/Cura/issues/6701|bug]] in which the speed_travel variable is defined as mm/min., but interpreted as mm/second. Therefore the printer has a super slow travel speed and is a factor 60 too low. Solve by replacing the {speed_travel} with the value 3000.
-^  Start G-Code  ^  End G-Code  ^
-| G21 ;metric values\\ G90 ;absolute positioning\\ M82 ;set extruder to absolute mode\\ M107 ;start with the fan off\\ G28 X0 Y0 ;move X/Y to min endstops\\ G28 Z0 ;move Z to min endstops\\ G29 ;level bed\\ G1 Z15.0 F3000 ;move the platform down 15mm\\ G92 E0 ;zero the extruded length\\ G1 F100 E5 ;extrude 5mm of feed stock\\ G92 E0 ;zero the extruded length again\\ G1 F3000\\ G0 Y20 F3000\\ M117 Printing...\\ G5  | M104 S0 ; turn off extruder\\ M140 S0 ; turn off bed\\ M84 ; disable motors\\ M107\\ G91 ;relative positioning\\ G1 E-1 F300 ;retract filament before lifting nozzle, to release some pressure\\ G1 Z+0.5 E-5 ;X-20 Y-20 F3000 ;move Z up a bit and retract filament even more\\ G28 X0 ;Y0 ;move X/Y to min endstops, so the head is out of the way\\ G1 Y180 F2000\\ M84 ;steppers off\\ G90\\ M300 P300 S4000  |
-===== Cura Profile settings =====
-With the following settings (for PLA) it was possible to get a working 0.15mm layer height.