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Thread: CNC Router

  1. #21
    Supporting Member WmRMeyers's Avatar
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    Quote Originally Posted by editor@glue-it.com View Post
    Hi All,

    Building a small traction engine and I wanted to engrave the words around the smokebox door and for the main badge, so thought I would dip my toe into the world of CNC and bought a CNC engraver/router. OK it is very cheap and might not be up to the job, but this is a steep learning curve for me as only ever used manual machines before this point. I bought a Sain Smart CNC Router 3018-Pro.

    So, here is a video of the kit arriving and me assembling the machine. Will share more as I learn.



    Now I'm learning about G-Code, tool paths and how to set up the machine for different materials.
    Silly question for you: what is the frame of the machine made out of? Acrylic?

    Bill

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  3. #22
    Supporting Member editor@glue-it.com's Avatar
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    Quote Originally Posted by WmRMeyers View Post
    Silly question for you: what is the frame of the machine made out of? Acrylic?

    Bill
    It's like a Bakelite and smells like bakelite when you drill it. Best regards, Nigel

  4. #23
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    Just made a video to explain how to align the head parallel and square to the table using a set of feeler gauges and some easy to make pointers.


  5. #24
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    Kant Twist Clamp Project

    I've always like the Kant Twist Clamp design and so thought I would make this my first proper CNC project.

    CNC Router-kant-twist-clamp-02.jpg
    Sand bags on the aluminium sheet to damp down some of the vibration.

    and I now have some tiny parts
    CNC Router-kant-twist-clamp-04.jpg

    CNC Router-kant-twist-clamp-03.jpg
    Now I just need to make the bearings, jaws and thread....
    Last edited by editor@glue-it.com; Oct 18, 2021 at 04:17 AM. Reason: needed a title

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    bruce.desertrat (Oct 18, 2021), Jon (Oct 18, 2021), mwmkravchenko (Oct 21, 2021), TheElderBrother (Oct 20, 2021)

  7. #25
    Supporting Member editor@glue-it.com's Avatar
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    I've now made up all of the bearings, jaws and screw to assemble a kant-twist clamp.

    CNC Router-kant-twist-clamp-08.jpg

    I need to change the riveted design for the next one, but this has been a great fun project.

    CNC Router-kant-twist-clamp-06.jpg

  8. The Following 5 Users Say Thank You to editor@glue-it.com For This Useful Post:

    cmarlow (Oct 21, 2021), Jon (Oct 21, 2021), lassab999 (Oct 22, 2021), mklotz (Oct 21, 2021), mwmkravchenko (Oct 21, 2021)

  9. #26
    Supporting Member mklotz's Avatar
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    Very nice work as usual, Nigel. I have some of the commercial ones and find them very useful.

    As your design evolves, you may want to consider V-grooves in the jaws. There are many useful options; parallel or perpendicular to the main screw, or both. Grooves in both jaws are nice but even if only in one jaw are still useful when clamping things with a rounded profile.

    Clamps with interchangeable jaws are another design option. A shoulder bolt and nut in place of the rivet would make interchanges easy.

    Plastic jaws and, dare I say it, wooden jaws are also a possibility for avoiding marring the clamped object.
    ---
    Regards, Marv


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  10. #27
    Supporting Member editor@glue-it.com's Avatar
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    Quote Originally Posted by mklotz View Post
    Very nice work as usual, Nigel. I have some of the commercial ones and find them very useful.

    As your design evolves, you may want to consider V-grooves in the jaws. There are many useful options; parallel or perpendicular to the main screw, or both. Grooves in both jaws are nice but even if only in one jaw are still useful when clamping things with a rounded profile.

    Clamps with interchangeable jaws are another design option. A shoulder bolt and nut in place of the rivet would make interchanges easy.

    Plastic jaws and, dare I say it, wooden jaws are also a possibility for avoiding marring the clamped object.
    Hi Marv, thanks for the kind words. I've been thinking about a few different options. Wooden jaws would be good as I have an oak jaw engineers clamp that comes into it's own sometimes. Also, I think bolts would be better in a few places actually. I'll have a think and another go. Cheers, Nigel

  11. #28
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    The sand bag damping of the table when machining aluminium works a treat, here I demonstrate it:


  12. #29
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    Thanks editor@glue-it.com! We've added your Kant-Twist Clamp to our Clamps category,
    as well as to your builder page: editor@glue-it.com's Homemade Tools. Your receipt:






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