SHAREBOT Next Generation, User Manual, Page: 52 / 66

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Refining axes X and Y
If there is staggering on a single axis, you must act on its value (M218 T1 X-nn, n Y0 that were found at
the beginning of the G-code SM_Test_Bicolor_NG.Gcode), remembering that if you increase the neg-
ative value, you move the extruder more right (x) or more inside (y). Well stop printing the first layer
until you have obtained a perfect centring eye. At this point let go and watch how you walk away
from a solid surface on the first two layers in a thin layer on a particular form that quickly grows. To 5
mm of height is the first extruder and change if the horizontal alignment between the two extruders
and correct, there should be no problem of interface between the two colors. The offset that you set
should be such as to overlap exactly the two colors allowing the subtle “wall” grow vertically without
oscillations from one side or the other. Touch up to the tenth of a millimetre the values if you notice
an overlap imperfecta without worrying about whether a “dirty” extruder printing passing above
the model: the important thing is the alignment between the two colors on the vertical axis in both
directions.
Modifying the profile with Slic3r
When you have found the ideal values, take note and then plug in the code that is in Slic3r as “custom
g-code” in the printer profile ShareBotDualstrusion; in this way you will have your value entered in
automatically each print is made with double profile extruder. In this way you’ll also insert the M218
command at the beginning of the G-Code, making it easy to any adjustment due to some readjust-
ment operation of your mechanical (e.g. for combined and separated repeatedly for extruders).
Positioning the locking printing bed rubber bands
The correct position of the rubber bands for glass block printing plate, in a way that does not inter-
fere with the prints in both single and double extruder is shown in the drawing below. the position
of the pegs is not binding or final: pegs in blocking the glass invade useful print area, you can then