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Thread: Question about Saltwater etching materials

  1. #11

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    I believe increased voltage will help with conducting through the solution, thereby allowing more current to flow. Similar to increased voltage being more likely to spark in open air.

  2. #12

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    So here is the 3rd attempt... I was not as careful cutting my design as I am more interested in getting the timing down. This was at 10 minutes..
    https://photos.app.goo.gl/wmkhJUTVsEZmA15n9
    Jedi Atu'karek
    Remember: Han shot first.

  3. #13

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    Not bad, but I think you want to limit your current a bit more. Slower and more controlled will get better results and cleaner edges. 10min is really fast for that deep of an etch.

  4. #14

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    Definitely better.

    http://s6.photobucket.com/albums/y23...0Saber%20Hilts

    From Wikipedia: "Internet Explorer slows down GIFs if the framerate is 20 frames per second or higher and Microsoft reports that Google Chrome and Safari also slow down some GIF animations."

  5. #15

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    My next test will be a 5 minute etch time. I have also ordered some sheets of PNP Blue so when I am ready, it will be cleaner than trying to cut the design by hand. I will be trying that possibly tonight or tomorrow... Will post results
    Jedi Atu'karek
    Remember: Han shot first.

  6. #16

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    Quote Originally Posted by poconosjon@aol.com View Post
    My next test will be a 5 minute etch time. I have also ordered some sheets of PNP Blue so when I am ready, it will be cleaner than trying to cut the design by hand. I will be trying that possibly tonight or tomorrow... Will post results
    Yeah the toner transfer method (when it works) produces the cleanest lines. I had more luck using glossy magazine paper (ripped right out of magazines and it does not matter what is already printed on them when bought) than I did with PNP Blue but others have been able to make it work. Nowadays I use a die cutting machine and have it cut the shape from adhesive backed vinyl. While it cannot get quite as good of detail as printing something using a laser printer, it's pretty close.

    http://s6.photobucket.com/albums/y23...0Saber%20Hilts

    From Wikipedia: "Internet Explorer slows down GIFs if the framerate is 20 frames per second or higher and Microsoft reports that Google Chrome and Safari also slow down some GIF animations."

  7. #17

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    So I think 2 minutes is the magic number, what do you think?
    https://photos.app.goo.gl/HZYkPuQbyLjdw5YW6
    Jedi Atu'karek
    Remember: Han shot first.

  8. #18

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    Once again, I think you need to make adjustments to pull more slowly for a longer period of time.

  9. #19

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    Quote Originally Posted by poconosjon@aol.com View Post
    So I think 2 minutes is the magic number, what do you think?
    https://photos.app.goo.gl/HZYkPuQbyLjdw5YW6
    What jbkuma stated. More time but with less salt and/or less voltage/current. The faster it etches, the easier it is for it the bubbles and water turbulence to separate the resist from the part.

    To really know how well the etch turned out, we need to see it just before you put it in the saltwater to etch it as well as after it's been etched. That way we can compare the resist design (as applied to the part) with the etched design.

    http://s6.photobucket.com/albums/y23...0Saber%20Hilts

    From Wikipedia: "Internet Explorer slows down GIFs if the framerate is 20 frames per second or higher and Microsoft reports that Google Chrome and Safari also slow down some GIF animations."

  10. #20

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    JB/Arkm,

    As always,, I appreciate the input and I will heed your advice.. I will try again later using the 3.3v output and take a look every couple of minutes to check the depth. I am using a 4 to 1 ratio of water to salt and I can cut this down as well... 4 cups water to 3/4 salt maybe...

    Jon
    Jedi Atu'karek
    Remember: Han shot first.

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