Quote Originally Posted by komatias View Post
Doddy,

40W will cut through 3mm ply in one pass but 6mm in two or three depending. You need to have a look at getting an air nozzle on you machine if it is the chinese 40W one.
Yup, mine came with an air-assist nozzle - and a handful of coiled rigid air pipe. That quickly got replaced with an energy-chain to contain a flexible (ok, aquarium) 4mm silicone air tube, as well as a 2-core ribbon to supply the two laser line-generators that a 3d-printer bracket held to provide x-hairs (don't think to use a x-hair lens/laser assy, as you can't guarantee the focus/alignment, you really do need two single line generators, one on each axis).

My real problem with chinese lasers is the absolutely crap software. I need to adapt the machine to be driven from g-code, but I've struggled to justify the cost.