this is a cable chain for the elegoo phecda laser engraver X axis.
to use this cable chain you need to extend the laser module cable by ~10cm
a known problem of this design is the though air assist tube which gives resistance on the cable chain, i highly recommend replacing it with a silicone 4x6 tube with ~3m length (i bought this one https://www.amazon.nl/dp/B000H6SRMU?ref=ppx_yo2ov_dt_b_product_details&th=1 )
parts list:
1x all 3D models except for chain links
27x chain links
2x M3 nut
4x M3x12 countersunk
~10x tiewrap