First CNC build of own design

Discussion in 'Guitar Building' started by Marcus, Feb 14, 2015.

  1. Marcus

    Marcus New Member

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    Hey Again!

    So.. This time I figured I wanted to take my computing skills to a test. But simply copying one of the classic electrics seemd easy. So I went ahead and drew a model of my own, first in 3ds max (Posted it on here a while back, back then it was just a mesh sketch), and later on in Solidworks (yay! I learned new software). So first of I would like a couple of questions answered. I can't see to figure out where to put the truss rod. I could move it closer to the nut, but that would move it past the heel, and there by ruin the idea of the rod (Am I right here?). Is my neck simply too long? Here is a picture for reference: [​IMG]
    Here is a picture of the truss rod moven up to fit at the headstock: [​IMG]. As expected, the channel is now past the heel.
    Other than that, i would like some feedback on my design :) Here are a couple of pictures:
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]


    /Marcus
     
    Last edited: Feb 14, 2015
  2. Marcus

    Marcus New Member

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    Would it be a problem to buy a bass trussrod, and shorten it down to fit the need? Im thining one like this one here.
     
  3. Adam

    Adam Well-Known Member

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    The truss rod doesn't need to be the same length as the fretboard. An 18" truss rod should work just fine.
     
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  4. Marcus

    Marcus New Member

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    Thanks man. Saves me the trouble of cutting a bass one down :)
     
  5. Knarbens

    Knarbens Well-Known Member

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    Great modeling man! But ... like I said ... that's a huge long body!

    Nice renderings btw.
     
  6. Marcus

    Marcus New Member

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    Thanks Knarbens :) i've been using keyshot 5 for a While, really simple piece Of software, with very low render times (under a minutte for these).
    And the Reason for the long body is That i wanted whole fretboard to be fully available, to increase play abillity :)
     
  7. Marcus

    Marcus New Member

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    Tried doing a bit about the heel, didn't really like the other one :) And I uploaded some actual HD pictures so everything ain't smudgey!
    [​IMG]
    [​IMG]
    [​IMG]
    What do you think :)? It also gives a little more support for the neck.
     
    Last edited: Feb 17, 2015
  8. Knarbens

    Knarbens Well-Known Member

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    That's a better heel!
     
  9. Knarbens

    Knarbens Well-Known Member

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    The body size still doesn't look good to me! It's huge! Think about wood, size, weight, look, posible cases/bags, feel, ... I added a quick size comparison.

    [​IMG]
     
  10. Marcus

    Marcus New Member

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    Tried downsizeing the outspline to 90% size, i think its better, still a tad big, but better :) (If in doubt, it's the one on the left :) )
    [​IMG]
    EDIT: Better view;[​IMG]
    [​IMG]
     
    Last edited: Feb 18, 2015
  11. Knarbens

    Knarbens Well-Known Member

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    I'd say the 90% sized one on the left looks better! But that's me ... maybe you could get another opinion?
     
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  12. Marcus

    Marcus New Member

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    I must say, that after resizing, i won't go back :rofl: It really looks a lot more slick.
     
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  13. Sully

    Sully Well-Known Member

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    Agree that the body is still too long. Print it out full size which may help you scale things. Bottom looks familiar ;)

    [​IMG]
     
  14. Marcus

    Marcus New Member

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    Awesome Design you got there Sully! I were in no way trying to steal anything, so I hope that this isn't a problem :) And I will tweak it a bit more until I am 100% satisfied. At the moment I am planing on building a CNC router, to build this thing, which is causing me a bit of pain :)
     
  15. Sully

    Sully Well-Known Member

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    Thanks man. I wasn't suggesting theft; it's all good. :)
     
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  16. Marcus

    Marcus New Member

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    Here is a quick render of what I am aiming for with the CNC Build: [​IMG]

    The Linear guides I am using is 1200 for the x axis, 500 for the y and 350 for the z, so should be able to do both necks and bodies.
     
  17. Adam

    Adam Well-Known Member

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    What will the material be for the structure? Try to make the gantry as light as possible.
     
  18. Marcus

    Marcus New Member

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    I want to make the gantry out of aluminium, and the front and back piece from a more sturdy material to make it more stable :) Im thinking steel.
     
  19. Adam

    Adam Well-Known Member

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    Consider extruded T-slotted aluminum bar instead of plate aluminum. Better strength, and places to bolt to built right in.

    Like this:

    http://www.tslots.com/
     
  20. Marcus

    Marcus New Member

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    Seems like a better solution, wondering if it is cheaper aswell.. Gotta check if we've got something like that here in Europe :)
     

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