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Type: Posts; User: samco

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  1. Re: Compact 5 cnc conversion to servo's and Linuxcnc

    I want to play with this on an actual lathe.. So I need something with pretty high acceleration...


    https://youtu.be/PtD9w6lp8n8
  2. Re: Compact 5 cnc conversion to servo's and Linuxcnc

    some machining required...

    http://electronicsam.com/images/greenmachine/IMG_20200531_120134.jpg
  3. Re: Compact 5 cnc conversion to servo's and Linuxcnc

    Cool - isn't it? Love the flexibility..
  4. Compact 5 cnc conversion to servo's and Linuxcnc

    I had some little pittman servos that I thought were on the small side - but so far they seem to be about perfect. Using the existing lead screws and belt reduction.

    10.16tpi/2.5mm
    2.5:1...
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    Re: New drives for original stepper motors.

    The steppers are not hybrid and are only 72 steps per rev. I really doubt if you could get much more performance out of them.
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    Re: Non-circular boring. (Linuxcnc fun)

    I do actually talk at about 6:30m


    https://www.youtube.com/watch?v=PtD9w6lp8n8
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    Re: Non-circular boring. (Linuxcnc fun)

    Just because...

    http://electronicsam.com/images/greenmachine/IMG_20200430_214406.jpg

    http://electronicsam.com/images/greenmachine/IMG_20200430_214323.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    Cutter relief is important.. (the one on the right was up the tool - causing the corner issues)

    http://electronicsam.com/images/greenmachine/IMG_20200429_222019.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    I think I get a D for effort...


    https://www.youtube.com/watch?v=a7CO9gohaXE

    http://electronicsam.com/images/greenmachine/IMG_20200428_191604.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    new encoder seems to work... a bit better :)

    http://electronicsam.com/images/greenmachine/IMG_20200426_112519.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    fits!

    http://electronicsam.com/images/greenmachine/IMG_20200422_190242.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    Double post
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    Re: Non-circular boring. (Linuxcnc fun)

    Almost there...


    https://youtu.be/sXU0e2dmtwU


    http://electronicsam.com/images/greenmachine/IMG_20200421_200716.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    Lathe mode


    https://www.youtube.com/watch?v=P0RP7s-rDsg

    - - - Updated - - -

    start at upgrading the spindle encoder...
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    Re: Non-circular boring. (Linuxcnc fun)

    Pay no attention to the man behind the curtain....
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    Re: Non-circular boring. (Linuxcnc fun)

    And just to see if it could be done....

    http://electronicsam.com/images/greenmachine/2020-04-01-165305_1920x1080_scrot.png

    http://electronicsam.com/images/greenmachine/IMG_20200403_155600.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    Aluminum!!


    https://www.youtube.com/watch?v=C0Wz8vnFAQU

    http://electronicsam.com/images/greenmachine/IMG_20200328_133410.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    surprised how well it worked considering what I am working with mechanics wise...

    http://electronicsam.com/images/greenmachine/IMG_20200317_152032.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    another high quality video..


    https://youtu.be/LWLcFdObLvA
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    Re: Non-circular boring. (Linuxcnc fun)

    video coming... one gcode program - chamfer, hex and hole all poly-bored..

    http://electronicsam.com/images/greenmachine/IMG_20200315_114549.jpg
    ...
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    Re: Non-circular boring. (Linuxcnc fun)

    Added the ability to change the radius of the polygon by moving the X axis. (so you can create profiles..) The resolution of the spindle encoder is visible in the cut you could also just do round...
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    Re: Non-circular boring. (Linuxcnc fun)

    Now rotatable...

    http://electronicsam.com/images/greenmachine/IMG_20200311_173730.jpg
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    Re: Non-circular boring. (Linuxcnc fun)

    Yes - exactly.
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    Re: Non-circular boring. (Linuxcnc fun)

    No... The axis are slaved to the spindle. You see me.turnung the spindle by hand and the 2 axis moving.
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    Re: Non-circular boring. (Linuxcnc fun)

    First couple tries in plastic. (painfully slow - just testing) (and the hole size should be way closer to the inscribed polygon diameter...)


    https://youtu.be/X1ma_TsItMk
    ...
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    Re: Non-circular boring. (Linuxcnc fun)

    This machine is being run with a rpi4+mesa 7i92.

    working well so far.
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    Re: Non-circular boring. (Linuxcnc fun)

    testing the component...

    http://electronicsam.com/images/greenmachine/2020-03-07-191256_1920x1080_scrot.png
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    Non-circular boring. (Linuxcnc fun)

    Andy created a hex on his lathe by slaving his x axis to the spindle rotation. I wondered if I could do something similar on the mill....

    bore a hex hole anyone?

    ...
  29. Re: is there an open source gcode interpreter that can drive mach3-type devices?

    I agree :)
  30. Re: is there an open source gcode interpreter that can drive mach3-type devices?

    Not quite.. Linuxcnc motion controller is a few levels above the printer port. The printer port in linuxcnc is just a simple i/o module.
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