Results 1 to 3 of 3

Thread: Picked up a couple more CO2s, one was a bit toasty

  1. #1
    Join Date
    Apr 2012
    Location
    Beaverton, OR
    Posts
    265

    Default Picked up a couple more CO2s, one was a bit toasty

    I picked up a couple more CO2s, a Rofin SC x30 (9.27um @225w) and a Coherent E150 (150W at 10.6um). The E150 works, the rofin... well, not so much. The 48v, 150A power was roasted. Best I can tell is the output inductor core cracked which ended up shorting out the output and frying itself. Luckily there was a second inductor of the same size in the power supply and I was able to measure it and determine the permeability of the core and wind a new one. After replacing a bunch of other components that were damaged from the heat and smoke the power supply works again. When this happened I found it also killed the dc/dc converters in the head and the RF power supply so I got to repair those as well. But it finally works after 2 months of working on it.

    Burning some wood here, measured output at 225w like its supposed to be, the laser has a much higher peak power at lower rep rates.

    Pics of the internals and repairs here: https://flic.kr/s/aHsmVebSR9

    Thread over on HSM where I logged the repair: https://bbs.homeshopmachinist.net/fo...little-crunchy

  2. #2
    mixedgas's Avatar
    mixedgas is offline Creaky Old Award Winning Bastard Technologist
    Infinitus Excellentia Ion Laser Dominatus
    Join Date
    May 2007
    Location
    A lab with some dripping water on the floor.
    Posts
    9,506

    Default

    I'd call that an heroic save. Nice job, from flamed trash to flame thrower… Nice.

    Steve
    Qui habet Christos, habet Vitam!
    I should have rented the space under my name for advertising.
    When I still could have...

  3. #3
    Join Date
    Apr 2012
    Location
    Beaverton, OR
    Posts
    265

    Default

    Im still a bit shocked I got it working. Luckily a few tips to look for why it fried and just got very lucky the damage to the head and rf power supply was limited to what it was.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •