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  1. It looks like the error is occurring at regular...

    It looks like the error is occurring at regular intervals. If it is not the bearings, I would check the pulleys for debris (maybe some gunk between the pulley teeth), and make sure the pulleys are...
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    No, it is the the 5202 that has two in and out...

    No, it is the the 5202 that has two in and out connections not the 5200.

    I used to have a 5000, it was okay but the 5200 is better, you should be able to get one for about $500. Cloudray has them...
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    Get an S&A CW-5200 Chiller, not a 5000, 4000 or...

    Get an S&A CW-5200 Chiller, not a 5000, 4000 or 3000.

    As for the laser tube, get a Reci or EFR. My nine year old Reci 80W is still working like new - and that includes running it six minutes one...
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    I saved it as a V12 CDR, are you not able to open...

    I saved it as a V12 CDR, are you not able to open it?

    FWIW, X4 came out in the 21st century - even V12 too. V10 was the last version to be released in the 20th century.
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    Okay, that file is a Star Wars "Aztec Calendar",...

    Okay, that file is a Star Wars "Aztec Calendar", not Star Trek. I guess you are not a SciFi fan ;-)

    You should be able to load the .cdr into Corel Draw, hit "ctrl+A" to "select all" then simply...
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    Where did you download the Star Trek Aztec Cal....

    Where did you download the Star Trek Aztec Cal. from?
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    If you do decide to get one of those, they are...

    If you do decide to get one of those, they are $179 on the CloudRay website.
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    I use a Mahoney "Laser Power Probe...

    I use a Mahoney "Laser Power Probe". Basically, it is a big kitchen thermometer with an anodized block of aluminum bonded to it for soaking up the heat from the laser beam. You fire the laser for a...
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    Like Glen says, you need a parametric tool to do...

    Like Glen says, you need a parametric tool to do that. I would recommend AutoDesks' Fusion 360, it is free and can easily do what you need. OnShape is very similar. I have not kept up with OnShape...
  10. Something like that should work okay. Actually,...

    Something like that should work okay. Actually, maybe not for the air curtain. The air curtain has several air holes so it might need to have a higher airflow to be effective. If you were to add a...
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    Generally the larger inlet has to do with the...

    Generally the larger inlet has to do with the volume of air, the suction side is slow moving air, the exhaust side is faster moving. Additionally, I think it is better to have the minimum length of...
  12. I don't think you can view photos or PM without...

    I don't think you can view photos or PM without becoming a contributor. Becoming a contributor is very low cost (six dollars!) and the value of knowledge on this site is... well, there is nowhere...
  13. The "air curtain" that Epilog uses on their low...

    The "air curtain" that Epilog uses on their low end machines is not the same as the typical air assist that most lasers have. You can use any standard air supply up to 30 psi (per Epilog).

    You'll...
  14. Dot size depends upon the incoming beam size and...

    Dot size depends upon the incoming beam size and focal length. Counterintuitively, a larger incoming beam results in a smaller spot. 80W is typically the largest DC tube that is recommended if you...
  15. That looks like a reflection of the hole in the...

    That looks like a reflection of the hole in the back of the machine.
  16. I don't remember the exact speed but it wasn't...

    I don't remember the exact speed but it wasn't much different than acrylic. It does leave a small raised edge - and do NOT breathe the fumes.
  17. This is my contribution:...

    This is my contribution: www.thingiverse.com/thing:4245317

    My mother is sewing up hundreds of masks, the first batch being sent to a NY hospital. They wear the DIY masks over the N95s. They are...
  18. Dunning-Kruger

    Dunning-Kruger
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    I get mine from Edensaw in Port Townsend. They...

    I get mine from Edensaw in Port Townsend. They used to post their prices online but it seems they have changed that practice. Free delivery for orders of $400 or more to the Seattle area, Alabama is...
  20. Best thing is to place the blower outside, the...

    Best thing is to place the blower outside, the last thing in the line. That way all the piping has negative pressure on it - if any leaks develop it will draw clean air into it rather than push dirty...
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    Sure, when framing in carpentry you can...

    Sure, when framing in carpentry you can physically move the frame so that you remove one half the difference by simply skewing. That same corrective movement does not correlate to the orthogonal...
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    It does not work that way. For example, if it was...

    It does not work that way. For example, if it was one degree out of square, the difference in diagonal measurements would vary greatly depending upon the size and the proportions of the rectangle. A...
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    When you think you have it squared, vector the...

    When you think you have it squared, vector the largest rectangle you can fit on your machine and measure the diagonals, corner to corner. If they are not exactly equal then it is not square. The...
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    At least they call it a laser cutter and not a 3D...

    At least they call it a laser cutter and not a 3D laser printer.
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    A good broker makes a huge difference. Took me a...

    A good broker makes a huge difference. Took me a bunch of calling around before I found a broker that would handle it, and they weren't very good.

    For the next machine I called around some more...
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