TEST MENU - dennislia/Marlin-2-0-x-Anycubic-i3-MEGA-S-Fork GitHub Wiki

Test Menu:

After selecting the TEST MENU, you are first presented with the ability to check and adjust the nozzle at +0.2 mm above the bed (typical first layer height). Then you are able to perform a test print in PLA, ABS or TPU at +0.2mm.

TEST_0_RED

The first line of the LCD display shows the current Probe Z-Offset. Place a piece of paper on the bed and select Test Nozzle. This will move the nozzle to Z=+0.2mm. If the nozzle is pinned to the bed, move the nozzle Up until it is just brushing the paper. The Probe Z-Offset will be changed as you move the nozzle. Remember to save the change to EEPROM before exiting the Special Menu, so that it will apply again after the printer is turned off and on again.

TEST MENU 1 GCODE:

  1. Display Probe-ZOffset

  2. G90\nG1 F400 Z0.2

  3. M211 S0\nG91\nG1 F400 Z0.02\nG90\nM211 S1

  4. M211 S0\nG91\nG1 F400 Z-0.02\nG90\nM211 S1

TEST_1

After feeling comfortable with the nozzle level, select the Test Print for the filament you currently have on the printer.

HOT END AND BED TEMPERATURES: PLA 210C and 60C, ABS: 240C and 100C, TPU: 230C and 40C.

TEST MENU 2 GCODE:

  1. G26 H210 B60 L0.2 P5 R20

  2. G26 H240 B100 L0.2 P5 R20

  3. G26 H230 B40 L0.2 P5 R20

  4. Exit Test Menu

TEST_2

The printer will print a single line single layer pattern at +0.2mm, connecting each of the mesh points, as shown below.

Look for the lines to be of uniform width and slightly flattened. If the lines are not flattened, you can adjust the nozzle down some, with the nozzle Up/Down selections on the previous screen. If the lines are too flat, you can move the nozzle up some, with the selections on the previous screen. If the thickness is not uniform over the bed, you might need to preform Auto Mesh Leveling again.

TEST_BED_IMAGE