Step 1: Equipment
1 aquarium power head...modified...... free- 19.00
1 6" X 2.5' length SS duct for hvac...modified... 6.95
1 6" SS duct cap 4.85
1 tube clear silicone, squeeze type................................ 2.95
some form of insulating cap...foam, cardboard...etc.. free
siphon or large baster..............check the kitchen......... free
1 strip aluminum or other hanger for power head... 6.95
low end 21.70
high end 200.70
Most of this equipment can be found for free or nearly so.
Step 2: Supplies...
Step 3: Process 1
Wear gloves when handling this, it is VERY sharp.
By carefully pushing the tube into the cap, folding the tube at the cuts gently, you will be able to create a smoother surface for the ice. mounting the two pieces into one unit, apply the silicone to the inside seams by wiping away the excess smoothly and layering sufficient amounts to the outside as to make water tight. This stuff can be messy, good luck. That completes the hard and dangerous part .
Step 4: Process 2
Step 5: " the Main Event "
Mount the modified power-head on the edge of the tubes open end. Point the output tube into the near middle. Fill the tube, which should now be approximately 28 inches high, with a 1/2 gal measure of ice cubes then tap water. Plug in your power-head and adjust the water level up to the top of the output tube. The water should just cover this while running. Some of these pumps need priming to start, this is normal. Just tap the open end of the output tube to force water to flow and removing the air in the impeller area at the same time. Replace the insulating cap and close the lid on the freezer.
My unit takes approximately 2.5 to 3 days in a cool storage room to set the ice. Using a ruler to plumb the depths on day two should give you a depth result on ice formation. Remember to turn the freezer to its coldest setting. The best time to catch the ice is at about 3 inches of freeze (3" from the open top of the mold till your ruler hits ice).
Siphon or baster away the dirty water and using towels or gloves move the entire mold with motor to a refrigerator if available or a work area to rest. The more consistent the rise in heat and the less shock the more likely you are to reduce the number of stress cracks from temperature differential. The top few inches will not be clear ice. This is sacrificed to save the clear ice in the bottom portion. Once cut away (think camper, bow or gardeners trim saw) wrap the ice in saran wrap and store back in freezer till needed.
Step 6: Build It
By placing colored or clear LED flashlights and battery operated Christmas lights under or behind or inside different effects can be created....tea light maybe. Fire and ice.
The Sphere and the column are two separate pieces that were joined by temperature difference. Column was slightly warmer than the sphere. The addition of my hands heat to melt the column top just before seating the sphere caused them to fuse into one piece. These are placed on top of two bar type LED flashlights wrapped in saran wrap buried in ice in a box lined with a trash bag.
Enjoy and have fun! Always imagine.