JGAurora A5 Infrared Side Autobed Level modification

thingiverse

JG Aurora Infrared sensor upgrade... This is my side version which allows you to keep the front plate. You will need 2 off M2 x 10mm screws to secure the bracket to the extruder mount through the fan housing. These are on the right-hand side if you are looking from the front. WARNING WARNING MAKE SURE YOU DOUBLE CHECK YOUR CONNECTIONS POSITIVE to POSITIVE NEGATIVE to NEGATIVE SIGNAL to SIGNAL The connections are written on the boards.. so it's easy to check. WARNING WARNING Description Autobed level addition to the JG Aurora A5 3D printer. Items you will require Infrared sensor - https://miscsolutions.wordpress.com/mini-height-sensor-board/ 3 wire servo extension lead (2 x 1m in length) Files included Mount STL Cover STL To do this modification, update the main board's firmware. Use the Arduino IDE software to make this change. Plenty of YouTube videos explain how to do this; search for "update Marlin via Arduino IDE." You will need to open your machine and feed the 3 wire connector around the machine. The sensor uses the Z minimum endstop connector, so just unplug the current one. The current z endstop needs to be removed. Unscrew it from the side frame and hide it below. You can always go back then if needed. I've already configured the firmware to use this sensor, so you will only need to flash it. I have enabled the eeprom on the board, so you can save bed levels.. but I would level at the start of every print just to be safe. To level, add some gcode lines to your start gcode script. There is normally a tab / section in your software.. the lines you need to add are, Add these AFTER the G28 (Home) command. M851 Z-1.7 ; Z Offset M500 ; Save to Eeprom G28 ; Home G29 ; Level bed etc... The Z offset can be set above. Z-1.0 = 1mm.. so if you want to lower the head then you would do.. M851 Z-1.2 ; Z Offset This would then be 0.2mm closer than before. You don't need to change the TFT firmware, you won't get any benefit from it as it doesn't support Z offset setting