Welcome to the LPF, Granter11. There are many nice and knowledgeable people here who’ll be happy to listen and to help you whenever possible. You should also use the Search button on the bottom of each page to access our extensive database with information about all things laser. Our chief concern is safety, so always protect yourself and others. Be sure to use proper vision protection, and never point a laser at any living thing. I assume you’re new to using lasers, as $5 goggles are extremely insufficient when exposed to very powerful outputs like 2.5W. Lasers are wonderful and fascinating devices, but also dangerous. Please learn as much as possible before attempting to construct an engraver, and always remember to be laser safe. Take Care.
I'm new myself. I see you ALSO have Googles! I had that in my intro too. I have two pairs of Eagle goggles from Survival Lasers myself. I have learned a lot here. The search at the bottom of the page has helped immensely.
I would also stick to the recommended vendors-and NOT get a laser until you have a good pair of goggles.