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45W CO2 Laser Build

Discussion in 'Laser Cutters' started by wackocrash5150, Dec 2, 2019.

  1. wackocrash5150

    wackocrash5150 Well-Known
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    wackocrash5150 published a new build:

    Read more about this build...
     
  2. WR_Rider

    WR_Rider New
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    Excellent job so far. The cutting of the plexi looks great and seems to me like it should work well.
    That x gantry of yours moves pretty fast in that video... nicely done.
    Keep posting
     
    #2 WR_Rider, Dec 4, 2019
    Last edited: Dec 4, 2019
  3. Giarc

    Giarc Master
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    That looks cool. I like the dual shaft center mounted stepper motor.
     
  4. wackocrash5150

    wackocrash5150 Well-Known
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    Thanks guys. I appreciate the feedback. The center mounted stepper was just done due to parts available. My supplier was out of 1000mm straight rod, so I went with 2x 500mm and just relocated the mount. I'm still wracking my brain about how to install the tube and 1st mirror. The way Pedro mounted his rear vertical extrusions gave him more options.

    Btw; the M5 8mm screws were on back-order so, it's just been sitting there all week teasing me.
     
  5. Giarc

    Giarc Master
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    Crap. I ordered a few packs of those. I hope it's not my fault because I won't get to mine until after the holidays.
     
  6. wackocrash5150

    wackocrash5150 Well-Known
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    lol ... Naw. I ordered them from my local Fastenal. Matter of fact, they just called me about 30 min ago to let me know they have them.
     
  7. wackocrash5150

    wackocrash5150 Well-Known
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    Hi all. Sorry for the lack of progress updates. A few health issues have taken this project out of priority but I'm still trying to plug away, or at least think about it when time and energy allows.

    Not too much has changed in the past month. It's still sitting in roughly the same spot on my CNC bed like in the photo... lol.

    I'll add some pics later but I've roughly figured out how I'm going to apply motion to the Z axis. Basically a closed loop belt over a couple pulleys to a Nema 23 I have sitting around. Should to the trick nicely. I've also been farting around with the design for the intermediate back panel to which I will mount the electronics to. It's just going to be a piece of 1/8th" hardboard for now until I get the design finalized. It will probably be acrylic when done.

    So I've been thinking about cooling lately for the laser tube. As much as I would like to have a standalone laser cutter, I think it might be wise to mount the pump, reservoir, radiators and fans externally. I would just pipe out of the main chassis using some barbed fittings. This would leave minimal tubing inside but would also have the flow sensor switch inside as well.

    This got me thinking that I should probably also have some sort of thermometer/temperature-sensor on the output of the tube so I can monitor it. What do you guys suggest? Something with a barbed inline fitting would be good as I'm fighting a but with thread standards mainly on the flow switch. (uses a G standard rather than the commonly depot available NPT standard. And I also mistakenly ordered the 8mm ends for mine as opposed to the 10mm ends from CloudRay)

    I'll upload some pics when I can.
     

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