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Thread: Faceted Box

  1. #1
    Join Date
    Jun 2013
    Location
    Pasadena, CA
    Posts
    967

    Default Faceted Box

    Hm. Just noticed we don't have a 2016 folder here....

    Anyway, I believe it is quite apparent hat I have a knack for math in general and specifically geometric designs. Accordingly my last project was a faceted box (commonly known as a rhombic tricontahedron).
    It is made from 30 diamond shaped faces with 144 degree miter angles. 20 of them make the "bowl" or bottom part and 10 make the lid.

    A) Cutting the faces on my new and improved vacuum pod system with a 1/4" ball nose end mill bit.


    B) Cut out elements (Walnut and figured Birch)


    C) Glued together and "turning" the inside with a 1/2" ballnose end mill. Machining 6" deep with a 6" long bit was a challenge on my small machine with 8" z-travel. I had to cut the top 2 inch with a stubby bit and switch to the long bit for the bottom of the bowl.


    D) Both parts oil finished and wax polished, outside.
    Last edited by Burkhardt; 02-27-2016 at 08:51 PM.
    Box Joint, Dovetail, Guilloche and MazeMaker Software Here

  2. #2
    Join Date
    Jun 2013
    Location
    Pasadena, CA
    Posts
    967

    Default

    Some more pics...

    E) Both parts inside view


    F) Lid close-up


    G) Box closed


    Now i just need to fill it with cookies.
    Box Joint, Dovetail, Guilloche and MazeMaker Software Here

  3. #3
    Join Date
    Feb 2015
    Location
    Alberta
    Posts
    109

    Default

    Neat box! Very well done! Thanks for sharing all the pics.

  4. #4
    Join Date
    Sep 2006
    Location
    cnc routing, portland or
    Posts
    3,628

    Default

    way cool. I have done miter fold boxes but always out of baltic birch plywood or mdf. yours is 10 times better.

  5. #5
    Join Date
    Jan 2004
    Location
    Jasper, TX
    Posts
    516

    Default

    I bet you never get accused of thinking inside the box. You do some interesting and cool things. Thanks for posting.

  6. #6
    Join Date
    Apr 2013
    Location
    Kennebunkport, Maine
    Posts
    4,101

    Default

    Wow G. ! )
    Nothing like a brain teaser on first cuppa.
    Optical illusion on first pic of top had me wondering. And really like the interior cut effect!
    Wonderful finish!!
    What the heck did the clamping look like?
    (bet you were scrambling during glue's open time
    NICE job.
    scott
    Scott Plaisted
    2013 Desktop/spindle/VCP 9
    Maine

  7. #7
    Join Date
    May 2011
    Location
    ny
    Posts
    777

    Default

    Really cool, like Scott said there is some eye confusion looking at the pictures.

  8. #8
    Join Date
    Jun 2013
    Location
    Pasadena, CA
    Posts
    967

    Default

    Thanks guys!

    Quote Originally Posted by scottp55 View Post
    .....What the heck did the clamping look like?
    (bet you were scrambling during glue's open time.....
    Scott, don't ask me. That was the difficult part of the project.
    Actually there was no clamping. I have not figured out yet how to do that in an effective way. I applied a light dusting of CA accelerator spray on one side of each joint, a good bead of CA glue on the other side, then aligned the outer edges by hand and folded the faces together. The open time with the accelerator is only 2 seconds or so.
    As you can imagine, there is no room for error and any tiny misalignment will propagate when adding more and more platelets to the assembly. The good part is that I had the whole thing assembled in half an hour.

    At the end I had to sand out the resulting imperfections. Easy enough on the outside with a ROS. For the mis-match gaps between the bowl and the lid edges (up to 1/10") I finally had a good reason to buy a Makita band power file Pressing off with old fashioned carbon copy paper, sanding away the touch marks (patiently over and over) got it together well.
    Attached Images Attached Images
    Box Joint, Dovetail, Guilloche and MazeMaker Software Here

  9. #9
    Join Date
    Mar 2006
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    7,830

    Default

    I like that you always come up with something WAY out of the ususal stuff. VERY COOL!
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  10. #10
    Join Date
    Sep 2006
    Location
    cnc routing, portland or
    Posts
    3,628

    Default

    a couple ways to glue it that may be easier either use the ca coat each end and let harden then put it together and use a bead of glue that will soak in. or use epoxy and blue tape the blue tape works like a hinge.

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