If you do a search on eBay or AliExpress (i.e. https://m.ebay.com/sch/i.html?_from=R40&_trksid=m4084.l1313&_nkw=15w+450+ nm+laser) you will find several similar items.
Few questions:
- I don't think they are really 15W, but I hope are better than my 6W optlasers module. Any experience with them?
- they say are for mainly for engraving, I need to cut soft 3 mm plywood. Now it takes 11 passes at 800 mm/min... but with great precision (0,1 mm). It's worth to give them a try?
- how to select one among them? I really don't understand the differences, if any...
Thanks in advance!