39
7.
Find the
Z-Probe
section locate line that begins with G31. In the image
below, locate Z5.85, which is our value, for this example. Your printer will
have a different number here. Replace that number with the number
you recorded in step 5. If you recorded 5.50, then the new line of code
should read:
G31 P25 X45 Y0 Z5.50
8.
Select the Save button in the top right-hand corner and then
Yes
when
you see the prompt asking you to restart the board. The system
MUST BE
RESTARTED
for these changes to take effect and will restart if you select
the restart option after you click Save from
config.g.
Steps to Fine Tune Z-Offset After your First Print
1.
During your first print, you may have to Baby Step the Z axis to get the
perfect first layer. If you do, record the Baby Step Value that you used.
Note: If the value is negative, be sure to record the negative sign.
2.
Return to the
config.g
file and navigate to the same line of code
adjusted in step 7 above. Record the Current Z-Offset.
G31 P25 X45 Y0 Z5.50
3.
Use the following formula to calculate your new Z-Offset Value
𝑁𝑒𝑤 𝑍 𝑂𝑓𝑓𝑠𝑒𝑡 = (𝐵𝑎𝑏𝑦 𝑆𝑡𝑒𝑝 𝑉𝑎𝑙𝑢𝑒 × −1) + 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 𝑍 − 𝑂𝑓𝑓𝑠𝑒𝑡
As an example, if your Current Z-Offset was 5.50 and your Baby Step
Value was -0.040, then your New Z-Offset would be
𝑁𝑒𝑤 𝑍 − 𝑂𝑓𝑓𝑠𝑒𝑡 = (−0.040 × −1) + 5.50 = 5.54
4.
Update the config file with the New Z-Offset Value. Save the config.g
file, and be sure that the system restarts.
G31 P25 X45 Y0 Z5.54
7
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