3ds analog mold

[blablabla]

How to do a "hole" in my case to put a 3ds slider?

 

[laingsoft]

With a drill and a file.

 

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I mean like this :http://www.google.com.br/imgres?um=1&hl=pt-BR&safe=off&sa=N&tbo=d&biw=1283&bih=964&tbm=isch&tbnid=towDYhEA5FFBvM:&imgrefurl=http://forum.nintendoblast.com.br/t15223-problema-analogico-3ds&docid=OEDF20rQq_UdvM&imgurl=http://i46.tinypic.com/309pwfr.jpg&w=640&h=480&ei=6A0CUae1K4j48wSIr4HAAQ&zoom=1&ved=1t588,r:5,s:0,i:97&iact=rc&dur=5873&sig=100265943346199415294&page=1&tbnh=173&tbnw=219&start=0&ndsp=25&tx=161&ty=104

 

[superben51]

Just like THIS

 

[blablabla]

Will try to make the wood mold