Dust collection for cutting machine

A computer numerical control (CNC) cutting machine comprising:

• a base configured to support a workpiece;
• an arm movably supported by the base;
• a spindle rotatably supported by the arm;
• a tool holder coupled for co-rotation with the spindle, the tool holder configured to selectively receive a tool bit;
• and
• a dust collection assembly supported by the arm, the dust collection assembly including:
• an adapter coupled to the arm,
• a head telescopically coupled to the adapter via a plurality of nested members, each of the plurality of nested members collapsible relative to each other, the head movable between an extended position in which the nested members are configured to surround the tool holder and a tool bit, and a retracted position in which at least some of the nested members are telescopically retracted towards the adapter,
• wherein the head includes a first portion, a second portion spaced radially outward from the first portion, and an intermediate portion connecting the first and second portions, the intermediate portion being substantially flat,
• wherein the head defines an inlet fluidly connected to the plurality of nested members, and when the head is at least in the extended position the inlet is configured to fluidly connect to a vacuum, and
• wherein the head is configured such that the intermediate portion contacts the workpiece when the head is in the extended position;
• a control system including an actuator coupled to the head, the actuator configured to be controlled to adjust the head between the extended position and the retracted position, wherein the control system includes a plate movably coupled to the actuator and includes cables that couple the plate to the head such that the actuator adjusts the head between the extended position and the retracted position by acting on the plate to move the head.