Orbital Sanding A Guitar Body

Discussion in 'Guitar Building' started by Knarbens, Apr 4, 2017.

  1. Knarbens

    Knarbens Well-Known Member

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    Hey Everyone. I have a hard time sanding the sides of a body with an orbital sander. I've seen videos of people doing that with one hand so it seems possible.

    Now I wonder whether it's just a lack of skills or whether there are different types of machines?

    Any tricks or tips?
     
  2. Adam

    Adam Well-Known Member

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    What kind of orbital are you using? For that sort of thing I prefer an air powered type, the lighter the better. You need to be able to control the orbital easily. It also takes time to get used to and get good at it.
     
  3. Knarbens

    Knarbens Well-Known Member

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    Thanks Adam. Well I have a random orbital sander. So it has the disc rotation plus an elliptic motion.

    Are the air powered types random as well? Or do these only rotate?
     
  4. Adam

    Adam Well-Known Member

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    You can get either type. Random is definitely preferred. Collings has a guy whose job all day is to random orbital sand the sides of electrics, he uses an air powered random orbital that is pretty compact and light.
     
  5. Knarbens

    Knarbens Well-Known Member

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    Alright. So it's all about practice I guess? Or does it feel much different to use an air driven sander?
     
  6. Adam

    Adam Well-Known Member

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  7. Knarbens

    Knarbens Well-Known Member

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    Thank you very much Adam.
     
  8. Michael_P

    Michael_P Member

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    pricey?

    not really when you consider what a really good motored ROS can cost (Festool)

    either way, Adam's point about weight of an air powered ROS is very valid and to the point. on the flip side, I can say that when you have learned to use a ROS and control it a "cheap" DeWalt 5.5" sander isn't all that to deal with when holding wood with one hand and using the sander with the other.
     
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  9. pshupe

    pshupe Member

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    I use one of these for the sides of the guitar bodies and it is spectacular!
    [​IMG]

    Cheers Peter.
     
  10. Knarbens

    Knarbens Well-Known Member

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    So I found two sanders I consider buying. One has a swing of 2.5 mm and the other 8 mm.

    I guess the 2.5 mm are easier to control on a guitar body?
     
  11. Adam

    Adam Well-Known Member

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    I feel like the ones I've used were 8mm, but I can't say with 100% certainty. I'm fairly certain they weren't 2.5mm, the orbital pad was able to move quite a ways.
     

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