Fletch's Fab Academy 2014 Blog
    
    
    
    Our task this week is to design and make a press fit construction
    kit.  Glue is a sign of failure!  The kit should be able
    to be used to make anything, or at least a whole variety of
    different things.  Whilst Neil's Task was a good one, my 5 year
    old son had better ideas, he wanted me to build a 'Castle
    Construction Kit'.  So a set of parts that can be used to make
    a whole variety of toy castles it is.
    
    Build this daddy!
    
    
    Castle must have:
    
      - Walls with crenelations
       
      - Towers
 
      - Gatehouses
 
      - Windows and Arrow slits
 
    
     03.01 Parameterised.
    I wanted to make a parameterised design so that I could make a
    larger version of my castle for the 'Make something big' week.
    
    03.02 Joints.
    I had a play with the MTM Snap joint design and made a number of
    test pieces to optimise my parameterised version of this joint
    design.
    
    This joint style works reasonably well in 3mm ply.  My
    Kokopelli design for these test pieces is here.
    
    03.03 The Design
    I also designed a parameterised version of the hinge for this
    project.  Final design file is here.
    
    
    
    Above image shows 3 versions of the castle tower panel with 1mm,
    1.5mm and 2mm width parameters set for the hinge.  This was a
    test of strength vs. flexibility. I decided on 1.5mm as the best.
    
    
    
    Wall panels from the kit.
    
    
    
    Final construction kit in assembled state.
    
    
    
    Other Random Thoughts
    Must be parametric so that material and scale can be changed.
    Scale?  sized for toy soldiers or as a kids playhouse?
    Joints must be distinguishable from crenelations
    Round towers? Pointy fairy tale roofs?
    Square towers?
    Etch windows, arrow slits, stone work
    Over hangs on top of towers?
    Drawbridge
    Portcullis
    dungeon?  Just etched detail on some panels?
    Floor pieces?
    Moat pieces?
    Based on hexagons rather than squares for base?  Would make it
    more interesting.
    Number or letter floor pieces so could be used for a game? 
    Make a game?  Make as a board extension for a game?  As a
    variant of an existing game?  As a variant of Settlers of
    Catan?
    
    Etching as raster or halftone dots?
    
    Wall sections join end to end or at 90 deg?
    How will we join them end to end?  Will we need a jointing
    piece?
    Should all slots be the same length? some long, some short?