I’m looking to buy a diode laser head for an engraver I’m building. I’m on a very tight budget but (naturally) I want the biggest ‘bang’ for my money that is feasible. My current choice is a 40W (actually about 12-14 W optical) laser head I’ve sourced for just under £100 (typical price is £120-£150 on ebay/amazon). This should work well, but I don’t know the manufacturer and I sort of assume it will be a Chinese job - which is not necessarily a problem.
Before I splash my cash I thought I’d ask if anyone has experience or knowledge of either this firm, or similar kit, which they are willing to share. (A link to an identical unit on Amazon is included below for anyone who wants more detailed specs, but it appears to be a fairly standard package, with a 450nm blue diode laser, running at 12V and around 4-5 amps with pwm/ttl at the usual 0-5V).
There are no extras with it but I don’t really need any. It will be used for engraving and will sit on a fairly conventional x-y aluminium frame, which I’m making now, i’#m also going to put a z-axis stepper into it, designed to give about 7-8 inches of up-down movement. My source claims that it is capable of cutting ply, acrylic and other thin materials - up to 3 or 4mm - which would be a nice bonus if true, but no great problem if not).
Does anyone know (of) this kit or similar? Are there any red flags I should know about? Am I making a big mistake? My knowledge is paper thin and very young so it is entirely possible .
(I should say that I’m not expecting an outstanding laser for this sort of money and will be happy with a unit that can throw out a few watts reasonably reliably on demand like most similar units seem to do.).
The issue of controller is the subject of another thread, but I’ve tried to make sure that this unit can be used with controllers that other members have kindly suggested, but again I’m very much flying by the seat of a very thin pair of pants on this