Hello! Title might be a bit dramatic but it genuinly looks like it I have a very new, less than a month old atomstack a70 max. Ive put it together exactly as instructions instructed and ive had atomstack support look at my settings and saying it looks fine.
Ive had issues with it since i got it, especially with it not being as strong as i had expected. It has to go at 550mm/m to cut through standard 6mm birch plywood.
Few days ago i ran it again to test some more things and i noticed that it couldnt cut rhough 6mm at 550 anymore so i pulled the laser off the frame and the backside looks completely burned from the inside. Im always there when it runs and i didnt see, smell or hear anything weird. Im waiting for a response from atomstack customer support, really hoping i can get a refund or a new laser head.
There are like metal flakes or something covering the fan and the radiators?
Yall got any ideas how this could have happened? Is this a common issue with diode lasers or maybe specifically the atomstack a70?
I am using the air assist shipped with the laser which is the newest and strongest they offer.
Ive made a enclosure for the laser since they do not offer any. Ive attached a 200mm fan that sucks at a rate of 650m3/h air out of the enclosure. Though to keep an eye on it i usually run the laser with lid of the enclosure open since im still in the testing phase. I have all windows in the workshop open to create a cross draft.
I suspect the airflow pattern in the enclosure is very poor and relies on good mixing of the air inside of the enclosure and then a vague dilution ventilation of the air inside the enclosure. While this may give some protection to the operator, it is the universally poor practice of not removing the smoke at the source of the smoke - the actual cut, which may be the root problem. I suspect the material you have been cutting may have contributed to the problem. The air assist would tend to just give protection to the laser optics and do little to reducing the smoke buildup inside the volume beneath the laser. Having only clean air being sucked into the fan would help. An extraction system based on an Aarberg hood would make the fan a lot more effective as it can focus on the contaminated air. If you are mathematical, see (for instance).
I have a new AtomStack A70 Pro and I am looking to extract air under my honeycomb and an Aarborg slot to removed the air at the surface of the workpiece. I probably won’t have a lid on my enclosure and may have slides only 30 cm high and a slot under the gantry opposite the Aarberg slot. I am be able to use some of the air assist air to power the Aarberg hood (a bit like a Dyson fan). https://www.sciencedirect.com/science/article/abs/pii/S0003487899001179
