Shenzhen Anycubic Technology Co., Ltd.
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nozzle and the print platform). Next, on the one hand observe the actual heights of Z axis,
on the other hand, carefully reduce the heights value step by step, such as G1Z50, G1Z30,
G1Z10, G1Z3, G1Z2.5, G1Z2.3… to slowly move the nozzle close to the platform. (Note: if
the value is set too large, the nozzle may knock at the platform. If so, immediately cut off the
power, then plug in again and enter G28 for auto home and do the adjustment again.)
If everything goes fine, when the nozzle touches the paper and a bit resistance could be felt
if pulling the paper, it means the height is OK. Now, check the value of G1Z# (or directly
check the Z# from LCD). # is the actual height value (which theoretically should be zero
when nozzle touching the paper). For example, if Z value on LCD is Z001.2, it means that
the difference between the actual height and the set height in firmware is 1.2mm, so the
height in firmware should be reduced by 1.2mm. (Given the height in the firmware is
300mm, now it should be changed into 300-1.2=298.8mm, then uploading the firmware
again). On the other side, if Z value on LCD is Z-002.3, then the height in firmware should
be changed into 300+2.3=302.3mm and re-upload the firmware.
The code for height in firmware could be located by quick searching in Arduino:
#define MANUAL_Z_HOME_POS 300 // the 300 here is the height parameter.
After re-upload the firmware, it is necessary to open the Printrun software and debug again
following previous steps to verify the result.
Step 2. Size of the print model
When the height setup is OK, it is suggested to print a test cubic model (20× 20× 10). „How
to print‟ could be referred to the next section, „Printing‟.
When the print job finished, check the actual size of the model. If it is smaller than
20× 20× 10, then it is suggested to reduce the value of „DELTA_DIAGONAL_ROD‟ (default
value=216) by 1~3 step by step until the actual size matches to 20× 20× 10.
Step 3. Leveling
There are two ways for leveling, auto-leveling and manual leveling. The auto-leveling is
discarded in this version due to its relative large errors and repeated adjustment before
every print.
For manual leveling, a circle model is provided in SD card. When it prints the first layer of
this circle, please observe the nozzle height and position towards X, Y and Z motors, and the
height of the nozzle can be adjusted by changing the tightness of the screw on the top of the
corresponding belt tensioners (refer to Fig. 10). Because the tightness of this screw can lead
to distance change between limit switches and effector, thereby changing the nozzle height.
Specifically, tighten this screw when nozzle is too high, and loose this screw when nozzle is
low. Using this method, the machine does not need leveling again in a relative long time.
Step 4. Eliminating concave and convex
When printing a model with large size, it may produce concave-convex on the model. In
order to tackle this problem, the value of „DELTA_SMOOTH_ROD_OFFSET‟ in the firmware
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