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Type: Posts; User: mantalos

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  1. Replies
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    Re: How to avoid premature tool failure

    Nice! Apart from these two places the PCB looks pretty good. By the way they are not capacitors but resistors at the gates of the MOSFETs. The board is a single layer stepper controller I designed to...
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    Re: How to avoid premature tool failure

    I would be really happy if I could achieve something like this:
    https://www.youtube.com/watch?v=uc_O_7KjwOg

    I think the specs of this machine are similar to mine.
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    Re: How to avoid premature tool failure

    Yes I will make some new tests with higher feeding speed and report the results. Till now I believe that the most important factor that caused premature tool wear was that I was cutting very deep...
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    Re: How to avoid premature tool failure

    Yes find attached the gerber files.

    Regarding the aluminum milling, I think my machine is rigid enough for some light milling. No heavy production of course. Future experiments will show the...
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    Re: How to avoid premature tool failure

    Craig, you are right the results were not perfect. I will consider buying a new spindle. The one you suggested seems really good but it is too expensive for me right now. Do you think this one from...
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    Re: How to avoid premature tool failure

    Hello,

    I finished milling the "larger_board". You can see the results in the attached picture.

    Settings:

    1) Feeding speed = 20mm/min
    2) Spindle at 22V (~7333 rpm)
    3) Tool: Cheap V-bit...
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    Hmm interesting... What is the trace width in...

    Hmm interesting... What is the trace width in your boards? I used 8 mil (up) and 10 mil (down) traces respectively.
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    I use a hot glue gun to attach the board on a...

    I use a hot glue gun to attach the board on a larger piece of mdf which is also glued down to the cnc bed.
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    Re: How to avoid premature tool failure

    First results with bed leveling. Here you can see a "test_board" milled with a cheap V-bit 30°/0.1mm. The spindle is running at 26V (~9000 rpm) with less vibrations. Feeding speed remains at...
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    The first milling I tried was with something like...

    The first milling I tried was with something like this one:

    https://m.aliexpress.com/item/2037306745.html?trace=wwwdetail2mobilesitedetail

    I had a pretty clean cutout. For the first 15 secs......
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    Re: How to avoid premature tool failure

    First of all I would like to thank all of you for spending your time to help me address this issue.

    1) Craig I found your advice really helpful and today I tried for the first time the auto bed...
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    How to avoid premature tool failure

    Hi all,

    I own a desktop 6040 CNC router that is made in China. I have managed to make some good test boards I designed for evaluating the capabilities of my setup. However, I noticed that the tool...
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