Hi everyone
I am working on a personal project. I am building a CNC laser engraving machine with an arduino nano and cnc shield V3.
Do you mind suggesting a laser module.
I am aming for at least 30 w laser module to have some good results not only for engraving but also for cutting. From what I have read I need to aim for 12 v lasser, is this correct?
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Use self built CNC's here almost exclusively for laser work.
40W diode lasers would today be an almost minimum standard needed as you will often find that much lower may be disappointing for anything but basic work.
Most of the newer ones also have AIR ASSIST which is a good thing to have so you may also have to budget for the air pump.
Although I am a fan of adjustable focus units the FIXED focus ones all have a light shield which cuts down most of the light and makes them a lot safer to operate.
Yes 12 volts is almost the defacto standard but 24 volts is also gaining popularity.
My machines are all capable of both and I have plenty of spare amperage on the power supplies to cope with either.
24 volts 10 amps or greater would be my minimum for the CNC side to power the X Y Z axis.
12 volts 10 amp will give you extra amperage for fans which you will almost certainly need as part of any extract system. I have two in push/pull configuration so I get a good crossflow of air.
Then I have an additional fan inline on a 4 inch duct to the outside.
Also think about the size you want to build.
Anything less than 300x300 would be out of the question IMHO.
But for you it may be different as we don't know what you intend doing.
As part of the safety audit also remember beam reflections and IR side lobes (esp with diode lasers).
Fun is fun, until it isn’t any more.
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