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  1. S

    Favourite comic had a laser related strip.

    maybe I'm blind, but I fail to see a missing resistor.
  2. S

    Scanner opinions

    30k. I'll try and get the blanking tuned and see. Some of the other test patterns are a little off.
  3. S

    Scanner opinions

    New galvo's fresh from the box. Not even tuned yet. Also need to adjust my blanking to get rid of the trails.
  4. S

    30kpps Galvos @ eBay

    I am not having good luck with these. they may be good for beam shows, but i can't get them to do graphics worth looking at.
  5. S

    Heat Sinking of a Various Modules

    90mw of green could be using 1w of 808 + electrical losses. 125mw of violet uses a lot less power as its a direct output not dpss. My aixiz green labby outputs 100mw of green at 450ma@2.8v
  6. S

    Scanner opinions

    No, I get ~+/-5v on the scan channels, and 0-5v on the rgb channels. The 2.3 v was caused by a bad USB cable. I've only adjusted the pots to correct some overshoot, and lower the size.
  7. S

    Scanner opinions

    Mine came from ebay seller chinalasershop and they have not been helpful at all( They also misrepresented the scanners as 30k also). They didn't send a manual initially, and they never sent the spare mirrors(Even though they said they mailed them) Considering these30Kpps HightSpeed Galvo System...
  8. S

    Scanner opinions

    Yes, this is in spaghetti, but LFI shows same results. The galvos are PT-20k's. The good pattern was done at 6kpps and <5° scan angle(actually everything is done @ <5° scan angle). My 12v DC-DC converter is still on back-order, but at the low angle I am using it should not be a problem. I can...
  9. S

    Scanner opinions

    That and the only scope I have is a single channel digital.
  10. S

    Scanner opinions

    I tried that with jumper wires and saw no difference in output. I want to determine if this is a scanner issue or a DAC issue. If its just that the scanners are crap, I will look in to getting a better set. If its a DAC issue, I have to look into a better one also(FB3?, though FB3 with 20k...
  11. S

    Scanner opinions

    No indications of a short anywhere. grounds are connected to ground, and signal lines are isolated from ground. Made a couple of changes, shifted the x and y cables to different lines. My breakout board has only 2 lines, and the signal cables have 3. G x- x+ G y- y+ They were setup...
  12. S

    Scanner opinions

    Your settings work better, I can isolate red and violet, but when turning green on red comes on also. Strange thing is, I can get all 3 colors to show during a show playback. Ordered a dichro from laserwave. Now I just need to sit down for a few hrs and tune the damn scanners, as I get...
  13. S

    Scanner opinions

    yes, thermal pads and plastic washers attach the transistors. I triple checked before ever applying power. OK, thx EF. I will try that and look into laser-wave.
  14. S

    Scanner opinions

    I seem to have the worst luck with cables. Turns out the USB extension cable was the problem. Anyone know a good source of pass red/ reflect green and violet dichro's. My GGW is putting out 176 mw and only getting 14mw after the scanhead. I lose about 50 mw after the first dichro( pass violet /...
  15. S

    Power supply?

    You can get a decent PSU off of Ebay for less than $20. This is what I have powering my lasers and fans. 12V 3A DC Universal Regulated Switching Power Supply - eBay (item 200401883170 end time May-02-10 18:00:41 PDT)
  16. S

    Scanner opinions

    I finally was able to get back to this. I've changed to a 12v PSU for the flexmods. I changed to new dichro's and mounts(Soooo much easier to align the beams now). Now I've got a new problem. So far the one piece of the scanner that has worked fine is the SoundcardDAC. Now when I connect it...
  17. S

    Scanner Build, Help.

    You will almost never get the beams to exit the aixiz module at the same exact angle(at least not in my experience). I've got a GGW and LCC in Aixiz housings and mounted in z-bolt heatsinks, neither exits the modules exactly straight.
  18. S

    First scanner build - progress

    Maybe use the other version of the ILDA test pattern(the one without the large box)?
  19. S

    Why gas lasers?

    Used to get hit by the psu side dozens of times each day. The burn-in racks used to have 100's of exposed anodes. After a while you get used to it. After a year of that, I was probably immune to a taser.:crackup:
  20. S

    Question about 50mW O-Like Green

    '-' should be to the spring for a green. + to the tail Is this a bare module or in a housing?


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