2. General description
Mechanical description
The device is tted with a crossed-belt Core XY mechanism in which the two motors are xed to
the equipment casing and either the identical or different rotation of the motors themselves
dene if the head is moving on the X or the Y axes. In this case, we refer to the names of the
motors as A and B.
The GT2 belts are open ended.
CraftBot Plus and CraftBot 2 models uses 8 mm rods for the LM8UU linear bearings. Special Steel
or Aluminium metal parts are used where possible to assure the longevity of the machine.
For the Z axis’ precision, 12 mm rods and linear bearing are used.
To ensure a more precise and uid movement, an Oldham coupling is applied; this prevents unne-
cessary jamming of the Z axis and allows for optimal Z screw movement.
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