SainSmart Genmitsu 4040-PRO CNC Router User Manual page 15

2. Insert the M5*16 screws through the holes of the XZ Axis Assembly to the corresponding screw holes of the X-axis
slider. Then screw them using the 3mm Allen wrench. You could install the screws on the first and third holes or the
second and fourth holes which makes a 30mm difference in the motor height. If using thin materials use the first and third
holes, for thicker materials use the second and fourth.
X-axis Block
(4) M5*16mm Bolt
(4) M5*16mm Bolt
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