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Coffin Coronary - 1 - |
 There are lots of places to find how to make a toe pincher casket on the
internet, but I couldn't find a single place on building authentic coffins.
Above you can see that we have used the dimensions of an actual casket to place
our "body" inside of to determine exactly how to build the coffin as
well as how to fashion the lever that will animate our display. You will
need to print out all the CAD drawings on these pages to reference as you
construct your own Coffin Coronary. The mechanism I used for my pop up is a
standard screen door closer
air
cylinder which has a throw of approximately 4 3/4". So with this limitation
I determined that the above lever and approximately a 47" wide opening for
the pop up would do the trick.
 Here is the cylinder in its fully extended position. Your dead body doesn't need
to fully sit upright to get the startle, so this was acceptable for my
animatronic. The cross shown on the upper left of this photo is the armature you
will want to make out of 2" PVC pipe. The shoulders of course are the
horizontal pipes and the neck section is very long, as you will be sliding this
far up inside of the prop's head. The lower section will be bolted to the upper
area of the lever.
Now that we have identified the needed clearances for our pop up it is time
to get started on constructing the coffin itself. I will be offering in this
how-to the construction to reproduce this museum quality coffin, but obviously
it could be done in a very crude and simple fashion and still give the
impression of a real casket. Below you will find the cut out list for this. My
coffin was constructed of 3/4" solid northern red oak and 3/4" plain
slice northern red oak plywood. The cross was made from 3/4" solid walnut.
Here is a cut out list for the coffin construction;
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3/4" OAK
VENEER
1) 16 7/8 69 TOP LID
2) 15 7/8 73 1/2 FRONT
2) 15 7/8 22 1/2 SIDES
1) 22 1/2 73 1/2 FLOOR
2) 4 7/8 76 1/2 SUB LID
2) 4 7/8 15 3/4 SUB LID
1) 7 15 3/4 SUB LID
3/4" SOLID OAK TRIM;
4) 3/4 15 7/8 BOX
TRIM
2) 3/4 22 GLUE BLOCK
2) 3/4 70 GLUE BLOCK
2) 3/4 70 1/2 TOP LID
TRIM
2) 3/4 18 3/8 TOP LID
TRIM
2) 2 1/4 78 LID TRIM
2) 2 1/4 27 LID TRIM
3/4" SOLID OAK KICK PLATE;
2) 4 3/4 78
2) 4 3/4 27
2) 4 1/4 76 1/2
2) 4 1/4 25 1/2
3/4" SOLID WALNUT CROSS;
1) 3 x 18 (2) 3 x 5
3) SPRING LOADED LIFT LID SUPPORTS
1) 48" X 3/4" PIANO HINGE
1) LENGTH OF 3/8" BRASS BEAD TRIM
31'
1) CAN BRILLIANT GOLD PAINT
2) YARDS WHITE TAFFETA
7) WOOD CURTAIN MOUNTS
1) WOOD CURTAIN RAIL 96" LONG
6) WOOD CURTAIN RAIL END CAPS
1) PAIR FOLDING TABLE LEGS
1) 4 YARDS BLACK DOUBLE KNIT FABRIC
1) SECTION 2" PVC PIPE 48" LONG
1) 4 WAY 2" PVC PIPE FITTING
1) SCREEN DOOR AIR cylinder
1) AIR TRIGGER
1) REINFORCED 1/8"X2"X28" STEEL
LEVER
MISCELLANEOUS L BRACKETS, MENDING
PLATES, CONDUIT CLAMPS, SCREWS,
GLUE
1) 3/8" X 24" AIR LINE
1) AIR REGULATOR
1) 1/4" AIR NEEDLE VALVE
MISCELLANEOUS AIR FITTINGS
1) FOAM FILLED PROP HEAD
1) WHITE SHIRT & BLACK TIE
1) TUXEDO
1) PAIR OF "STAGE HANDS"
4) BED PILLOWS
4) LARGE KITCHEN TRASH BAGS
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