Makino utilizes three direct drive motors for
the D500's C-axis rotary table and the A-axis trunnion. One direct drive motor
controls the C-axis motion. Two direct drive motors control motion in the
A-axis - one at each end of the trunnion. The dual motor design provides
greater torque and rigidity. Twist and torsion in the trunnion is eliminated to
The D500 axis
configuration provides added performance. The length of the trunnion assembly
runs parallel to the X-axis motion only, making trunnion assembly
deflection-free during quick axis motion for greater accuracy than traditional
features roller linear guides across all linear axes for extra rigidity. Y and
Z axes are located above the work zone, the X axis is located in the bed side
of the machine. Accuracy is achieved with independent axes, in which movement
remains uninfluenced by the characteristics of combined axes.
The work zone for the D500 is 500 x
450 mm. The X-, Y-, and Z-axes provide strokes up to 550, 1,000 and 500 mm,
respectively. Rotary table axes A and C provide rotational motion of +30 to
-120 degrees on the A-axis and a full 360 degrees on the C-axis. The D500 is
capable of feedrates of 50m per minute.
architecture of the D500 is a "closed-loop" design that increases overall
stiffness and rigidity of the machine structure. This means all force impacted
points of the machine are in close proximity to its support structure.
five-axis machine includes Makino's
Thermal Stabilizer system that includes core cooled ball screws and heat
insulation systems. This system allows for sustainable dynamic accuracy in
unstable shop environments. Twin internal chip conveyors remove chips from the
work zone efficiently where they are evacuated from the machine by a lift-up
can be easily upgraded for automation. An Automatic Pallet Changer can be added
to the machine at any time. Additionally, a stand alone machine can be
up-graded and integrated to a full scale pallet system that can include Makino a51 horizontal machining centers.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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