EASY WHEN YOU KNOW HOW ?

HAVE YOU NOW GOT YOUR 6 PIECES ID TIMBER?OAK IS THE BETTER BUT PLY WILL DO TO MASTER THE PUZZLE.AND WHEN PER-FECTED YOU CAN MAKE IT FROM OAK.IF YOU NEED TO MAKE THE PUZZLE BIGGER ALL YOU DO IS DOUBLE THE SIZES.IT NOW NEEDS TO BE CUT AS SHOWN. A = 3" D = 2 1/4 " E = 1/4 " B = 1/8" AND C = 1/2" . ALL 6 PANELS SHOULD BE IDENTICAL?? NOW MARK OUT THE GROOVES AS SHOWN AND CUT THEM OUT WITH A FINE GENT SAW AND CHISEL OUT WITH A SHARP 1/8 CHISEL?. THESE GROOVES SHOULD BE HALF THE THICKNESS OF THE PLYWOOD OR OAK WHICH EVER YOU ARE USING? PLUS ITS VERY CRITICAL YOU CUT EACH PIECE THE SAME MIRROR IMAGE.IF YOU DO NOT IT WILL THEN BE IMPOSSIBLE TO ASSEMBLE IT?? NOW YOU HAVE ALL 6 PIECES EXAXTLY IDENTICAL? ? HOW DO YOU ASSEMBLE THE 6 PIECES?????? IMPORTANT MAKE PANELS // PIECES SO THE GRAIN RUNS LENGHTWAYS NOT CROSSWAYS AND THE 2 1/4" DIMENSIONS  IS MADE BY SHAVING A VERY LITTLE OFF ONE PIECE AT A TIME.? THIS CAN THEN BE FORCED TOGETHER QUITE EASILY?  IT WILL BE A BIT LOOSE THE JOINTS BUT WILL GO TOGETHER? NOW YOU HAVE ASSEMBLED THE 6 PIECES WHICH IS A BIT LOOSE AND RICKETY. TREAT YOUR PIECE BY SOAKING IT IN HOT LINSEED OIL UNTIL THE PIECES SWELL UP.? THE OIL WILL OXIDISE AND LEAVE PIECES FITTING TIGHTLY..!!     ONCE DRIED YOU CAN THEN POLISH // WAX // VARNISH YOUR PIECE? A UNIQUE IDEA WILL BE TO PUT INSIDE YOUR PIECE A  9 BALL/SNOOKER BALL OR EVEN A BALL BEARING? THEN ASSEMBLE IT,AND SOAK IT?? BEFORE YOU SOAK IT CHECK SIZE INSIDE PIECE YOU HAVE MADE WHEN ASSEMBLED TO SEE WHAT SIZE SOLID OBJECT YOU CAN PUT INSIDE IT.  ONCE THAT IS DONE IT WILL BE A TALKING PIECE TO AMAZE ANYONE. TO UN ASSEMBLE THE PIECE YOU HAVE MADE??? A SLEDGE HAMMER COMES TO MIND? BUT AFTER THE TIME YOU HAVE SPENT MAKING THIS WHY TAKE IT APART?