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Thanks
You can keep the disk securely in place by removing the white plastic 'cap' that did so originally, from the metal lid of the case. Peel back the yellow label.
This cap has enough steel to firmly latch onto the arbor.
We could see the blue light thru the disk. Also the red light initially.
If you flip the disk off of the arbor it will continue to shine (and seek and try to focus) for a few seconds.
A white sheet of paper then shows the shape and size of the spot.
You got a bright beam with 80 mA but worried about overheating.
The pulsing idea would provide a 50% duty cycle at 80mA without overheating - but still making a bright (flickering) beam?
On Mar 10, 2008, at 2:34 AM, Bernard Cleyet wrote:
Chuck!
I haven't removed the LASER from the reader -- It appears to still work -- tho I must press lightly w/ two finger nails to keep the disk on the arbour 'till it's up to speed. I soldered leads to the horizontal pins. Can only see three, tho, likely a fourth bottom one. o'scope doesn't reveal any pulsing. I don't see any advantage in pulsing if only for pointer, etc use.
bc
On 2008, Mar 08, , at 21:00, chuck britton wrote:
Bernie - could you / would you, share your pinout diagram of the XBox laser modules?
3 pin and 5 pin IIRC.
Some lasers are pulsed - fast enough to appear continuous.
Maybe this blue one could be pulsed at 80 mA without damage?
It seems to be mounted in a pretty chunky metal base/heat sink?
I really want to make a blue pointer out of mine.
On Mar 7, 2008, at 1:41 AM, Bernard Cleyet wrote:
Speaking of diode LASERs, I purchased an XBOX 360 external HD DVD
cut