Materials Needed
1 - 3 to 5 rpm heavy duty mirror ball motor ( www.cheaplights.com)
2 - heavy test (150 lbs.) 12 inch long steel fishing leaders (ball bearing)
2 - 10 foot sections of ½ inch thin wall conduit
4 - eye bolts with nuts (long enough to go though the conduit)
1 - 1 foot piece of 1 inch pipe
1 - 3 feet piece of 1 inch pipe
10 - Sheet metal screws (# 8 by ¾ inch)
1 - Sand Paper
2 - Cans flat black paint
1 - Cheap lantern
1 - Battery (C size) operated string of X-mas lights (w/ on / off switch)
1 - Standard orange LED (about 3.0 volts)
1 - 15 ohm resistor (1/2 watt)
4 - 1 inch heat shrink tubing or electrical tape
2 - 6 inch lengths of hook up wire (old speaker wire)
1 - White plastic grocery bag
1 - 5 foot piece of black upholstery thread
1 - 10 foot piece of 1/8 inch nylon rope (for hanging the "beams for balancing)
Tools Needed
Drill and drill bits
Wrenches
Wire cutters
Hack saw or better yet a reciprocating saw
Measuring tape
Solder gun/pencil and solder
Hot glue gun and glue
Postal Scale
Lantern Assembly
1. 1.
Removing the glass chimney from the lantern (set aside so not to break)
2.
Cut out the bottom of the lantern with a can opener
3.
Solder the hook up wires to the LED, one to each lead of the LED and heat
shrink/tape
4.
Wrap a small piece of the plastic grocery bag (this is your flame) around
the LED and tape to the leads
5. Pull the cotton wick out of the lantern
6. Feed the wires and LED down from where the wick came out (the top of
the LED should be just above the housing)
7. Solder the 15 ohm resistor to one of the hook up wires and heat shrink
or tape solder joint
8. Cut the lights off the 10 light string of X-mas lights leaving about
6 inches of wire attached to the battery case
9. Temporarily hook up (twist together) the wires from the battery holder,
one to the wire from the LED and the other to the other end of the resistor.
10. Put in batteries and see if the LED lights, if not try switching the
two wires and try again (the polarity of the LED has to be correct for
them to work)
11. Solder and tape the twisted connections listed in # 9
12. Hot glue the battery holder into the bottom of the lantern
13. Turn the lantern on and adjust the height of the "wick"/ LED (if your
careful use can actually use the wick adjustment. Turn off and set aside.
Mobile Assembly
This is the most time consuming, but with a little patience you with have a great looking, working prop.
PART ONE: The Lantern Beam
• Determine
how much area you really have for this prop, you will need a clear area
of about 20 foot diameter for these dimensions to work.
• Cut
a 3-foot piece off one of the pieces of ½ conduit and use it for
whatever you want. You will need the 7- foot piece.
• About
1 inch in from one end of the 7-foot piece of conduit, drill a hole through
the conduit and put in one of the eye bolts and tighten the nut. You will
want to bend over the excess threads to make sure the nut doesn't come
off. This prop is heavy when done (10 - 15
pounds) you don't wanting it falling on someone's head.
• Measure
in 3 feet from the end with the eye bolt (above) and drill another hole
through the conduit and put in another eye bolt from the opposite direction
of the eye bolt in # 3, tighten the nut and bend over the excess threads.
PART TWO: The Motor Beam
1. About 1 inch in from one end of the 10-foot piece of conduit, drill
a hole through the conduit and put in one of the eye bolts and tighten
the nut and bend over the excess threads.
2. Measure in 4 feet from the end with the eye bolt (above) and drill another
hole through the conduit and put in another eye bolt from the opposite
direction of the eye bolt in # 1, tighten the nut and bend over the excess
threads.
Now for the difficult part.
PART THREE: BALANCING THE "LANTERN BEAM"
1. Weigh the lantern with the batteries (pounds and ounces). Write it down!
2. Weigh the 7-foot piece of conduit (pounds and ounces). Write it down!
3. Weigh the 1-foot piece of 1-inch pipe (pounds and ounces). Write it
down!
Now for some 5th grade math.
Take the weight of the lantern multiply it by 3 and then divide the total by 4. This should give you the approximate weight of your counterweight (the 1-foot 1-inch pipe)
Lantern
Weight times 3 = "A"
"A"
divided by 4 = "B"
"B" equals the approximate weight of your counter balance (1-foot of 1-inch pipe).
If "B" is less than the weight of the 1-foot piece of pipe then cut off little lengths at a time of the pipe until it equals "B".
4. Hang the 7-foot conduit from the center eye bolt, from a secure place
with the piece of nylon rope at a workable height.
5. Hang the lantern on the other eye bolt by a piece of the black tread.
6. Take the 1-foot section of the 1-inch pipe and slide it over the opposite
end of the 7-foot conduit.
7. Side the piece of 1-foot by 1-inch pipe in and out until the "lantern
beam" balances.
8. Drill a small hole in the top of the 1" pipe and screw in a sheet metal
screw just tight enough to keep the pipe from moving. You will tighten
the screw fully after the final balancing.
9. Carefully set your completed "lantern beam" aside for final assembly
later.
PART
FOUR: BALANCING THE "MOTOR BEAM"
1. Add the weights of the lantern, the 7-foot piece of conduit and the counter weight (1-foot by 1-inch pipe). This equals the entire weight of the "Lantern Beam" Write it down!
Now for some more 5th grade math.
Take
the weight of the lantern beam assembly multiply it by 4 and then divide
that total by 6. This should give you the approximate weight of your other
counterweight
(the 3-foot by 1-inch pipe)
Lantern
beam assembly weight times 4 = "C"
"C"
divided by 6 = "D"
"D" equals the approximate weight of your counter balance (3-foot by 1-inch pipe).
If "D" is less than the weight of the 3-foot piece of pipe then cut off little lengths of the pipe until it equals "D".
2. Hang the 10-foot conduit from the center eye hook, from a secure place
with the piece of nylon rope at a workable height.
3. Hang the "lantern beam" assembly from the other eye bolt.
4. Take the 3-foot section of the 1-inch pipe and slide it over the opposite
end of the 10-foot conduit
5. Side the piece of 3-foot by 1-inch pipe in and out until the whole assembly
balances.
6. Drill a small hole in the top of the pipe the 1" pipe and screw in a
sheet metal screw just tight enough to keep the pipe from moving.
You will tighten the screw fully after the final balancing.
PART FIVE: FINAL ASSEMBLY
1. Hang the mirror ball motor from a very secure support.
2. Attach a steel leader (by the opposite end from the "hook") to the mirror
ball motor.
3. Attach the 10-foot conduit "motor beam" by the center eye bolt to the
leader hook
4. Attach the other leader (by the opposite end from the "hook") to the
other eye bolt on the 10-foot conduit.
5. Attach the hook of that leader to the center of the 7-foot "lantern
beam"
6. Hang the lantern by whatever length of black thread needed to place
the lantern at a height that it looks like someone is carrying it.
7. Once fully assembled allow the completed assembly to "settle" the entire
should "balance out" and be perfectly level when at rest. If
not, carefully loosen the screws and slide the 1" pipe in or out to make
it balance starting with the "lantern beam" then move on to the
"motor beam". If you still can't get the beams to balance you can carefully
add or subtract weight by drilling holes in the 1" pipe or adding
additional screws to it. Tighten the"set screws" in both of the 1" pipe
counter weights.
8. Turn the lantern on
9. Plug in the motor (it may take a few moments before you see the lantern
moving)
10. Sit back and watch how the lantern appears to "float" and move in no
particular pattern.
The effects of the wind on this version of the MFL adds even more randomness
to the illusion.
If the
"assembly" might be visible you will want to paint it flat black. Be sure
to sand down the conduit well before painting.