Re: FS: >110mW Blu-Rays - available
spaceman_hux said:
Do you make your own heatsinks for the romisen flashlights IgorT.
Or do you get them custom ade by someone else.
The laser looks beautiful.
Thanks.. But i wish the pictures could show what it really looks like... I keep trying, and they look ok, but people are still surprised, when they get them, by the small size and by how nice it looks.
There are several versions of the heatsink, for different versions of the laser.
One is my all-in-one heatsink/module, which i make from several custom made parts. This is the one that unscrews in the middle, the top contains the diode and the bottom covers the driver and a battery contact board closes it off, so it's completelly self contained and well protected. This one has threads on the outside, so it screws directly into the host head, creating good thermal pathways into the mass of the host, using it as a secondary heatsink. Instead of at the top, this one sucks heat away in the middle - directly around the diode.
Then there are two versions of a single piece heatsink, that is machined out of one piece of aluminum. I figured out a way to make it just as effective as the first one when it comes to sucking the heat away around the diode, and also completelly self contained, enclosing everything inside. Altho this one won't be able to screw directly into the host head, but willl be pressed into the head by the body,like heatsinks usually are. It might be a tiny bit better as a stand-alone heatsink, but i still need to test if it is just as good at using the host as a secondary heatsink. It's gonna be a tight match...
The third version is made for the open can red diode, and designed in a way, that there is basically no room inside most of it, for maximum aluminum mass, and a different driver compartment, to house a different, larger driver or a FlexDrive. Again, completelly self contained and enclosed, so there are no wires anywhere in sight.
I hate wires, because in the last 10 years, every time a customer (for example a company, that (ab)uses my devices 8 hours a day every day) broke a device, my company makes, it was ALWAYS the wires / cables, broken on the inside from winding them too tight or tugging and bending. It drove me nuts untill i developed an all-in-one wireless version of the device. Now they can't break anything, as it is all safelly hidden inside.
Based on experiences like that, i don't like using wires, so i made the module the same way. Another benefit from this is that if a customer ever needs an upgrade or a repair, they can simply take the all-in-one heatsink/module out of the head, and only send me that, without fear of anything breaking, when taking it out, or putting it back in.
I will post pictures of the different versions, and the graphs of testing each with a high power blu (6x) and an open can red, and the "winners" (the heatsink, that keeps the power the most stable) will be used for the apropriate builds, especially for the very high power lasers. Altho, like i said, it will be a tight match, because the existing module is so good, that it can keep an open can at 420mA cool with a practically "unlimited" duty cycle..
I made a graph of the open can red in the original module, and it's pretty much a straight line after it warms up to working temperature. I'll post it later, when i have some time.
but it's good to know the laser can handle it easily.
Or did you just drop it, and decided to call it a "test"? ;D I kinda think it was the latter... I do those kind of "drop tests" too sometimes... :
