STEP 1. MAKE THE BURNER HOLES.
With the push pin (or small drill bit) make a circular ring of
24 to 32 evenly spaced holes OUTSIDE and concentric with the circular
ridge on the bottom of the soda can.
The location of the holes can be marked with a marking pen before making the holes. A hammer can be used to tap on the push pin. The hammer will save wear and tear on your thumb and will provide more penetration control. Smaller holes are made if the push pin is not allowed to penetrate its full length.
STEP 2. FORM THE LARGE CENTRAL HOLE.
Holding the can firmly, lightly score along the inside rim while
turning the can until you get a pretty smooth circle. You can
keep scoring with a little more pressure until the bottom pops
out. There is no need to actually push the knife all the way through.
You get a much cleaner cut.
STEP 3. CUT OUT THE TOP AND BOTTOM SECTIONS.
Cut the top can section 20 mm (3/4 in) in height.
Use a second soda can for the base section. Cut the base section
25 mm (1 in) in height. A good cut will vary by a millimeter or
less in height around the entire circumference. The precision
of the cut is more important for the bottom section than the top.
To make an even cut, draw a circle around the entire circumference
of the can with a marking pen. Keep the marker stationary while
you rotate the soda can about its long axis with its bottom on
a flat surface. To keep the marker stationary, use a piece of
cardboard with a hole cut in it to insert the marker tip. Actually
the cardboard should have two holes, one 20 mm (3/4 in) from a
straight edge and one 25 mm (1 in) from a straight edge for the
top and bottom section, respectively.
STEP 4. MAKE THE INNER WALL OF THE STOVE.
From the walls of a soda can, cut out a rectangle 35 mm (1 3/8
in) wide and 190 mm (7 1/2 in) long. To do this is to use scissors
to horizontally cut off the top and bottom of the soda can close
to the ends so that you have a cylinder with ragged edges. Cut
vertically straight across the cylinder to form a long rectangle
with ragged long sides. Lay the aluminum down on a cutting board
and place a ruler on top parallel to a long side. Trim off one
ragged long side with the utility knife using the ruler as a guide.
Measure 35 mm (1 3/8 in) from the new clean edge and repeat the
cut on the opposite long side. The long sides of the rectangle
should be as parallel as possible. Trim the ends so that the rectangle
is 190 mm (7 1/2 in) long.
Cut a slit into each of the long sides of the rectangle. The two
slits should be 150 to 152 mm apart (5 15/16 to 6 in) and each
long side of the rectangle should have only one slit. Slit depth
(or length) should be slightly more than half the length of a
short side, or about 20 mm (3/4 in). Make the slits as perpendicular
to the long sides as you can. Center the slits, that is, if your
rectangle is 190 mm (7 1/2 in) long the slits should be about
20 mm (3/4 in) from each end.
To allow alcohol to flow from the middle of the stove to the perimeter,
make three gaps along one of the long edges of the rectangle.
Measuring from one of the slits, mark the location of the gaps
with a marking pen at 25 mm (1 in), 75 mm (3 in), and 125 mm (5
in). Form the gaps by using a common hole punch set in from the
edge about 90% of its diameter or 6 to 7 mm (1/4 in) deep. An
alternative way to make a gap is to cut 2 parallel slits about
6 to 7 mm (1/4 in) deep and about 3 mm (1/8 in) apart into the
edge of the band. Fold the tab 180 degrees up against the painted
side of the rectangle or bend the tab back and forth to break
it off.
Interlock the two slits of the long rectangle to make a circular
band. It is possible to interlock the slits so that the ends of
the band are on the inside or the outside of the formed cylinder.
If you interlock the slits so that the ends of the band are outside
the cylinder then glue them down with Krazy glue. This helps
position the band into the grooves of the stove bottom and top.
A small piece of Scotch tape can be used instead of glue. If you
interlock the slits so that the ends of the band are inside the
cylinder you won't have to glue or tape them down, but the final
product doesn't look quite as good.
STEP 5. MAKE SLITS IN THE TOP SECTION.
With scissors, cut vertical slits in the vertical sides of the
top soda can section. The slits start from the cut edge of the
can section and should end 2 mm from the shoulder (rounded edge)
of the can. If you cut the slits too deeply flames may leak out
at that point. Make eight slits evenly spaced around the circumference
of the can.
STEP 6. ASSEMBLE THE STOVE.
Insert the cylindrical band into the circular groove of the stove
bottom so that the edge with the gaps is down. The circumference
of the band should be the same as the circumference of the circular
groove. If the band fits too loosely or too tightly, make a new
one. A band that is slightly smaller than the groove and fits
snugly with gentle pushing is acceptable if not preferable. The
top of the band should extend 8 to 10 mm (5/16 to 3/8 in) higher
than the top of the bottom section. This ensures that the top
soda can will rest against the band and not the bottom section.
When fitting the top and bottom soda can sections together make
sure the top can with the slits fits over the OUTSIDE of the bottom
can. You will need a thin screw driver (or a feeler gauge or a
small flat piece of soda can) to help ease the slit tabs of the
top section over the bottom section. Don't put a permanent bend
in either section. This process is made easier if you fit one
side of the top section 5 mm (3/8 in) over the bottom section
and then tape the two sections together at that point with masking
tape. Then use the thin screw driver to ease the other tabs over
the bottom section.
When all the tabs are over the bottom section remove the masking
tape and gently press the two sections together. At the same time
manipulate the inner wall into the grooves of the top and bottom
sections. When the band is positioned correctly, press the two
sections together tightly. If you made your band correctly the
upper and lower sections and the stove ends should be perfectly
parallel.
Pull 300 mm (12 in) of High Temperature Flue Tape off the roll
and cut it in half lengthwise giving you two pieces of tape 3/4
x 12 in, which is enough for two stoves. Trim an inch off each
end to have a clean, wrinkle-free piece. Tape over the slits and
the junction of the top and bottom sections. The straightest edge
of the tape should be the upper edge and should be placed right
at the shoulder (rounded edge) of the section with the burner
holes. As you install the tape, burnish it by rubbing with your
thumb, but don't push too hard and put a dent in the stove.
Congratulations, you now have a completed a Pepsi Can Stove! Pepsi
One cans are silver and blend in well with the foil tape. However,
if you want total coverage of the paint on the sides of the stove,
then measure the width of the flat side of your stove (should
be about 20-22 mm) and cut the tape exactly to that width.
Direction with pictures + more designs at PCT hiker.com