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makerbase-mks / MKS-Robin

MKS Robin is a powerful 32-bit 3D printer control board with STM32F103ZET6 . Support Marlin2.0. Support MKS Robin TFT24/28/32... Screens. The motherboard integrates 5 AXIS interface, hot bed, 2 heating heads, 3 NTC100K, 2 MAX31855.Support MKS Robin WIFI for cloud printing.Supports firmware update by SD card…
https://es.aliexpress.com/item/32757129463.html?spm=a219c.12010612.8148356.9.5fc165f4oDUfFM
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MKS Robin2 -Mesh bed leveling not executing when printing #105

Open DaVincIan opened 5 years ago

DaVincIan commented 5 years ago

My X-Y core printer, with a BL Touch probe is configured for Mesh bed leveling:

============================= Z Probe Options =============================

BLTOUCH 1 # 0:disable BLTOUCH; 1:enable BLTOUCH

Select for a probe connected to Z-Min or Z-Max.

Z_MIN_PROBE_PIN_MODE 1 # 0 : NULL; 1: ZMIN; 2: ZMAX

Z_PROBE_OFFSET_FROM_EXTRUDER -1.35 # Z offset: -below +above [the nozzle]-0.95;-1.45;-1.2 X_PROBE_OFFSET_FROM_EXTRUDER 32 # X offset: -left +right [of the nozzle] Y_PROBE_OFFSET_FROM_EXTRUDER 0 # Y offset: -front +behind [the nozzle] XY_PROBE_SPEED 4000 # X and Y axis travel speed (mm/m) between probes Z_PROBE_SPEED_FAST 600 # Speed for the first approach when double-probing (with PROBE_DOUBLE_TOUCH) Z_PROBE_SPEED_SLOW 300 # Speed for the "accurate" probe of each point

=============================== Bed Leveling ==============================

BED_LEVELING_METHOD 5 # 0:NULL_BED_LEVELING; 3:AUTO_BED_LEVELING_BILINEAR; 5:MESH_BED_LEVELING

GRID_MAX_POINTS_X 9 # 8 the number of grid points per dimension. <= 15 GRID_MAX_POINTS_Y 9 # 8 the number of grid points per dimension. <= 15
Z_CLEARANCE_DEPLOY_PROBE 10 # Z Clearance for Deploy/Stow > 0 Z_CLEARANCE_BETWEEN_PROBES 5 # Z Clearance between probe points > 0

Set the boundaries for probing (where the probe can reach).

LEFT_PROBE_BED_POSITION 35
RIGHT_PROBE_BED_POSITION 390 FRONT_PROBE_BED_POSITION 0
BACK_PROBE_BED_POSITION 390

MESH_INSET 35 # Mesh inset margin on print area for MESH_BED_LEVELING

The procedure to perform/gather the bed leveling data performs as expected. It is stored into EEPROM (M500), and I can view/confirm the bed leveling data matrix and status (G29 S0).

I'm using Repetier Host, with Robin2 V1.0.2 firmware

The problem is when I print, no bed leveling/correction is taking place. As an exaggerated example: Bed leveling disabled: Z at X3 Y3 = 0 Z at X200 Y200 = 1

Bed leveling activated: Z at X3 Y3 = 0 Z at X200 Y200 = 1 when Z should be at X200 Y200 = 0 (Obviously I've given the ideal theoretical example)

To summarize, my Z error with bed leveling active and not active is the same.

DaVincIan commented 5 years ago

Here is my mesh data:

18:09:29.845 : Measured points: 18:09:29.853 : 0 1 2 3 4 5 6 7 8 18:09:29.862 : 0 -0.31875 -0.33875 -0.36375 -0.38375 -0.42875 -0.47250 -0.49375 -0.47250 -0.41375 18:09:29.867 : 1 -0.28500 -0.30375 -0.30625 -0.34750 -0.37750 -0.42500 -0.44000 -0.43375 -0.36625 18:09:29.876 : 2 +0.01125 -0.00375 -0.03000 -0.04375 -0.05875 -0.12875 -0.17625 -0.19625 -0.14875 18:09:29.881 : 3 +0.11500 +0.08625 +0.05875 +0.02146 +0.00375 -0.08125 -0.08601 -0.08875 -0.05125 18:09:29.889 : 4 +0.00125 -0.02750 -0.03000 -0.04750 -0.10750 -0.15000 -0.18250 -0.17500 -0.10125 18:09:29.898 : 5 -0.09375 -0.09750 -0.09250 -0.14875 -0.16375 -0.24750 -0.26625 -0.28500 -0.24500 18:09:29.903 : 6 -0.12125 -0.15875 -0.17250 -0.17125 -0.23625 -0.29250 -0.31875 -0.35250 -0.32750 18:09:29.912 : 7 -0.19500 -0.24500 -0.27125 -0.30250 -0.35182 -0.37125 -0.44750 -0.44759 -0.45250 18:09:29.920 : 8 -0.11875 -0.23625 -0.28625 -0.30375 -0.33125 -0.38500 -0.44750 -0.50125 -0.46125 18:09:29.925 : X:0.00 Y:0.00 Z:0.00 E:0.00 Count X:0 B:0 Z:0 18:09:30.059 : echo:Settings Stored (1140 bytes; crc 16877)