Should be okay then, but its a fairly large (but odd) heatsink to begin with. I run mine with a much smaller one, but use a 9 volt rail to power the laser diodes (a red and a green at 350 or so mA).
How hot does it get without the fan assisting? Still acceptable?
If you do power the whole thing from a 12 volt rail, i think you will require a fan to cool the projector as a whole anyway. In an enclosed case things get hot easily, and that will degrade the performance of your lasers, even when the transistors are okay.
Aight - be careful with using fans in a projector though. The airflow will take dust along with it that will end up on your scanners, lasers, dichros and mirrors. It might actually be a good idea to have the fans blow inwards, with some dust filtering before them. If you leave the aperture for the beam open (i.e. not fit a window there) that will make a natural exit for the airflow.
Another solution could be to make some sort of separating wall between the things that get hot and the optical path. This can be as simple as a piece of cardboard or plastic with holes cut out that match the lasers output windows. Doing so, you can cool the parts that get hot but also can get dirty with fans, leaving the optical path clean.
Hey i have one of these in my scanner and its been okay.
But i bought mine off another user and my sound card is not like all of yours its a square not an L, it uses the same drivers but i was wondering if using the older version of the sound card could be giving some bad results.
any thought will try to get a pic later.
I am in the process of building my first Sound Card DAC / multi-color RRGB laser scanner. I have a +200mw green TTL/analog, 1W 445nm blue and two LOC-815 red diodes. I also purchased a set of SpaceLas PT-30K galvos, C-Media external sound card and a "LaserBoy" correction amp.
The only problem is that Dr. Lava no longer has the complete correction amp kits, just the bare PC boards! After quite a bit of research, and a couple of emails between myself and the doctor, I was able to order all the components online for the bare PC board. In the interest of helping others out, I have compiled a list of everything you will need (plus links) to complete the correction amp...
Asking for rep ? this is a bit like hitting below the belt or sucking the whip cream right out of the can.
I take pride in the fact I have NEVER asked for any rep, all the rep I have recieved is because
someone else gave it to me
If you go around asking people to rep you dose it make you feel good to know some one gave you
something you asked for ? I would much rether have it because some one wanted to give it to me,
it seems to mean so much more that way
Please go read my rep history and find out why people are repped, it's not because they ask for it.
Have a good day !
just one sound card and one correction amp.. they both support 6 signal channels, of which 2 channels control the galvos (1 ch. each) and 3 control the lasers (1 ch. each RGB) which leaves one channel left which isn't used with solid-state lasers.