Fixed focus means there are no moving parts in a beam’s way, which means that the focus can be narrower and focusing procedure is much quicker than with the adjustable focus.
The head has a protection shield around it, as an extra layer of protection, but wearing included safety googles is still a MUST. I would also recommend getting more quality protection googles with OD6+ protection. You only have one pair of eyes. Protect them! These lasers work in visible light spectrum and even reflections can be very harmful for your eyes!
Save your eyes! The included safety googles are not the best. Do yourself a favour and get a good quality OD6+ safety googles which offer a few magnitudes better protection for your eyes!
You can use the Atomstack A5 Pro+ laser engravers with free LaserGRBL software which works OK, but it is a little bit clumsy to use. It is great for some tests, but I chose Lightburn instead which is much more capable software, and it is very intuitive to use.
With LaserGRBL you can import vector files (NC, BMP, JPG, PNG, DXF…) and bitmap image files (bmp, jpg, png and gif),
Lightburn supports more formats: AI, SVG, DXF, PDF, HPGL, PLT, and RD for vector formats and PNG, JPEG, BMP, TIFF, TGA, and GIF for image formats.
