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  1. Scotoma

    One channel of soundcard dac is getting stuck on full blast

    I was just wondering if anyone has ever seen this issue. Sometimes after turning on my scanner or after having my scanner on for a while, the soundcard dac will all of a sudden start outputting the max number of volts (set to 5) on just the red channel, even with the volume of max.wav set to 0...
  2. Scotoma

    Scanned images are waving

    I have a set of PT-30K galvos that still need to be tuned but that are producing decent, recognizable images using a soundcard DAC and HE Laserscan 5. The problem I am having is that all the images (test patterns, for example) look like they are being modulated by a sine wave at about 2 Hz. In...
  3. Scotoma

    PT-30k scanhead orientation

    This question probably has a very simple answer and will most assuredly betray my extreme ignorance, but I can't seem to find the answer anywhere. Does anyone know how to mount the scanheads from pt-30k scanners into the mount? Does the orientation (angle) even matter, or is the angle offset...
  4. Scotoma

    My $100 mistake /w pictures

    So I just learned an expensive lesson about keeping the connections between drivers and diodes solid. I was using non-insulated, crimped-on terminal connectors for the connection from my flexmod to a mitsubishi 500mw ML501P73 diode. The exposed metal from the connectors touched my aluminum...


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