Milos Are you still around ? I'm not clear as to which front lens you used ? Did you end up using the thinner Lasershow's front lens to get the tighter output beam of 4mm ? Because isn't the whole point of this to get the tightest output beam as possible over a distance with the least amount of divergence ?Ok, here is the setup I used combining a 3x from OPT lasers, and a 4x from Lasershow Parts. Basically it gives the best squeeze of the beam for this diode out of all I tested so far.
I tested them with Lasershow's, and then with the OPT's plano convex lens on the front.
Here is setup with Lasershow's plano convex front lens.
and here is the setup with OPT Lasers Plano convex front lens.
Both setups basically produced a 12x squeeze, but the difference was in the front and final piece of glass where OPT lasers produced an output beam of nearly 6mm (5.5mm-6mm) but a bigger necessary distance from the cylindric plano concave 4x+3x set.
The Lasershow's front lens although allowing for an overall shorter setup, it produced a tighter output beam of 4mm!
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I don't know, Is that lens sold any place where it can be easily bought at a website in English ?
Well I think I've pretty well explained what I'm almost finished doing with my 44 7 watt build, before I try anything else I need to finish what I've already started.....
I think this is true as focusing the collimator to a given distance can only be unfocused either way you go pasted that point and when it is focused to the sharpest output at that given distance the output without cylindrical lens correction is always a thin line with the 44 ? correct ?
That brass assembly seems overly large and cumbersome to me ? But very well built !
I don't see any reason that could prevent the brass mount from being made more compact and still maintain the same precision as before ?