Recent content by altera

Will do. The lens just came in the mail so I can test it tonight.

Of course, hence estimates. I'll report back when I get the new lens. I assume people are interested in hearing this.

Warning: some back of envelope stuff here. Not trying to start a flame-war just putting down some estimates. I was unable to focus the 445nm to a pinpoint as small as the 405nm. If I had to estimate it would be 0.4 - 0.6mm 'dot' for the 445nm vs a 0.1 - 0.2mm pin for the 405nm. Let's run with...

I raised the platform as close as I could get the focus.

I've been experimenting a bit with the 445nm diode and as some of you guys have suggested the dot is certainly larger. Sadly it appears that the dot is so much larger that the power output per square inch is much lower. The 405 does much better due to it's focus no doubt. I've ordered a 445...

Re: 445 1-2W Blue Diodes *Tested* $45 Shipped US $40 each additional in same order. Shipment arrived, just now. Thanks for fast service!

Thanks! it's been fun putting the CNC together.

This is looking quite tricky my CNC is,.. well,... basic Not sure I have enough precision on the moving modules to place the lasers stationary. I think I'll try to use one high powered 445nm diode for now.

hehe CO2 might be out of my league :) thanks for the advice though!

That's cool. I'm in the automation business, more on the software side but I developed some hardware that has started selling real nicely now. I'm quite enjoying doing the hardware after about a decade of software only. I was going to use the CNC to engrave the serial numbers on the cases but...

Re: 445 1-2W Blue Diodes *Tested* $45 Shipped US $40 each additional in same order. DTR, do you still have any drivers to go with a 445 diode?

I'll keep the current as low as possible. I had set out to cut ABS (plastic) and while it's possible, the cut is not very clean. The laser more or less melts too much of the surround plastic at this power level. The 445nm might be a better choice for that indeed. I'll keep my eye open for a deal...

Thanks, I just spent a good 45 minutes looking at the fantastic builds andycon has done. I'd love to do some of those things. Would I need focusing optics after the PBS or would I be OK with focusing optics in the Axiz modules?

Guys, I'm looking to combine two 405nm diodes for my CNC laser (qumefox suggested I do this in a previous thread). I have one running already in my CNC but I'd like to try with two for faster/cleaner cuts if possible. a. Is it feasible to combine two beams for cutting or am I going to create a...

I'm not going to push this diode over 500mA. From what I've read that is considered a safe current as long as the diode has a good heatsink.