Awards & Engraving

March '19

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A&E MARCH 2019 • a-e-mag.com 9 fiber laser that the different wavelength also carried different requirements for eye safety. Luckily, the folks over at Radian Laser Systems (the manufacturer I chose to pur- chase from) helped me realize that I needed specialty glasses that are made to stop my specific fiber laser's wavelength. I highly recommend buying the safety glasses from your laser supplier and not trying to shop around to save a few bucks. If the ones you buy online elsewhere are not properly rated for the laser you are running, you put your eye safety as well as your customers' and employees' eye safety at risk. I now have three pairs of safety glasses available at all times and may add another two sets in the near future. Lungs: Don't even play around with this one. When we use fiber lasers, we vaporize mate- rials. When a material is vaporized, it poses a whole new set of risks that need to be addressed properly. In our field, we cannot simply put on a dust mask and assume that we are safe; a dust mask only stops the dust — you still breath in the dangerous chemicals released from the laser cutting and engraving process. I urge everyone to become familiar with what you put into your machine and how the laser affects that material as well as the chemicals within the material. Always ask for the material's MSDS sheet, carefully read through it, and check to see what happens when the material is heated and what chemi- cals are released. Hopefully everyone knows what PVC is by now. When lasered, PVC heats up and releases a vapor that contains chlorine gas. The chlorine gas released is not only dangerous to you, but it is also corrosive, damages your machine, and voids your war- ranty. I have seen folks post about making custom holsters from Kydex and that they are engraved and cut on a laser; as a warning, Kydex also contains PVC (again, check the MSDS sheet) and is dangerous to process. When I purchased my laser, I was relieved that Radian also sells fume extrac- tors that are made to combat the nasty gases released when processing materials. I ended up purchasing the larger model PA-500fs- IQ unit. This has a three-stage filter system, with the last stage being activated carbon to remove the dangerous fumes. The first two stages are mostly there to remove dust and debris, which helps to prolong the carbon filter life by not allowing it to clog. I highly recommend changing your first filter consistently; the other filters are not exactly low-cost items, and the first filter is relatively cheap to maintain. If your other filters need replacing, do not delay. When running your fume extractor, I learned that having it on too high of a setting actually shortens your filters' life span. I recommend testing your suction and setting it to the lowest power setting that still captures all the fumes. When set If the safety glasses you buy somewhere other than from your manufacturer are not properly rated for the laser you are running, you put your eye safety as well as your customers' and employees' eye safety at risk. ALL IMAGES COURTESY BRADEN TODD I recommend changing your first filter consistently; the other filters are not exactly low-cost, and the first filter is relatively cheap to maintain. If your other filters need replacing, do not delay.

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