How to know that bed leveling is working?



  • Is there any way to know for sure that the manual bed leveling is working? After doing the 7 point leveling, when I view the Gcode, there is only basic start-end code but nothing regarding bed leveling. I ask this because I am not really getting proper leveled prints. Even after bed leveling when I print, the printer starts printing few mm above the bed. An answer to this mystery will grately be appreciated.



  • The software bed leveling is applied as the gcode is being streamed to the printer. You can always check that it is working by opening the G-Code Terminal and looking at the commands that are being sent. Typically, G1 commands will not have Z values since the printer does not do a lot of moving up and down. Here is an example.

    ->N13285 G1 Y-2.48 E729.58*27 [1057.989]
    <-ok [1058.091]
    <- [1058.091]
    ->N13286 M105*41 [1058.161]
    <-ok T:254.9 /255.0 @200 B:75.0 /75.0 @66  [1058.162]
    <- [1058.162]
    ->N13287 G1 Y2.12 E729.733*1 [1058.162]
    <-ok [1058.193]
    <- [1058.194]
    ->N13288 G1 Y6.72 E729.886*13 [1058.194]

    However, if software leveling is being applied then all of the G1 commands will have a Z value, since the printer will be constantly moving up and down to compensate for the leveling.

    ->N1162 G1 X-10 Y-31.1 Z1.392 E10.191*47 [447.868]
    <-ok [447.925]
    <- [447.925]
    ->N1163 G1 X-8.91 Y-31.4 Z1.396 E10.253*61 [447.925]
    <-ok [447.982]
    <- [447.982]
    ->N1164 G1 X-7.81 Y-31.69 Z1.4 E10.314*5 [447.982]
    <-ok [448.039]
    <- [448.039]
    ->N1165 G1 X-6.72 Y-31.98 Z1.404 E10.375*4 [448.039]



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