Does anyone know what this mechanism for linear movement is called? I have a different model of something like this, and the black chain appears rigid, so I assume it is the mechanism moving the laser head. I could be wrong though.

The mechanism in question.

  • 1
    $\begingroup$ It's not clear from the picture. However the black chain-like devise is used to manage wires. $\endgroup$
    – Eric S
    Sep 6, 2017 at 1:06
  • $\begingroup$ @EricShain I just searched for "linear actuator cable management chain" and found the chain part. Apparently it's called a "cable chain". You can post it as an answer and I can accept it. $\endgroup$ Sep 6, 2017 at 1:18

1 Answer 1


The head probably moves by rack and pinion or a hidden timing belt.

The cable management is done by a cable carrier. It works by having each joint only have a limited rotation so that it can support itself when held horizontally.


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