Z axis has multiple values?

[FishMan]

I have set up the printer to the best I can (for the moment), finally worked out the MIN and MAX positions of the 3 axis. I get -12.00 for X and 10.00 for Y.

I then did a calibration of the 3DTouch according to the wiki, and got a Z axis value of -1.80. So I then put the -1.8 and the other values into configuration.h :

Code: Select all

#define MANUAL_X_HOME_POS -12.00
#define MANUAL_Y_HOME_POS 10.00
#define MANUAL_Z_HOME_POS -1.80

I uploaded the code to the printer and did an M502.

Now, if I do a G28, I get the following results:
X: -12.00
Y: 10.00
Z: 5.00

Looking at the Positions in the Repetier (V2.0.1) "Manual Control" tab, I see:
X: -12.00
Y: 10.00
Z: -1.80

If I do an M851 it returns - Z Offset : 0.00

If I try to print, It starts extruding about 4-5mm above the bed.

What numbers should I put into configuration.h, and where?

Thanks,
Paul

[siam]

the offset between the nozzle and the bed you should put in this line:

#define Z_PROBE_OFFSET_FROM_EXTRUDER -0.43 // Z offset: -below +above [the nozzle]

you can also set this with M851 Z-0.43 (in your case -1.80) and save this with M500

regards

Andy