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Monthly Archives: January 2013
You can use metal forming to create a mold for baking little cakes. These pans were developed for baking lots of Twinkies.
The technique for this project came from an Instructable. This showed how to make the pan, but didn’t go into the process for producing many of them. It also gave a good recipe for baking the cakes. In a separate session, I experimented with an angel food cake mix, which was not as good as the yellow cake mix indicated in the instructable above. For a baking instruction that does not use any mixes, see Hilah Cooking’s version of the project. Continue reading
Ahead of the warmer weather, it seemed a good idea to set the IceCandles up for night time viewing.
The water balloons sat outside for a bit, and partially thawed when they were in the sun for a day. They were moved to a shady spot, and turned over. Placing a small deli container filled with water beneath them allowed the IceCandles to freeze a nice flat base. Continue reading
Since it is super cold out here today, it seemed like a good time to try out the IceCandle Project that I saw on the Make blog. The way this works is that you freeze water in a container with a void to hold the candle. I opted to create the void at the same time that the water freezes by placing a candle holder in the bottom of a bowl that holds the ice. Another modification that I made to this design was to use condoms instead of balloons to make the IceCandles. Continue reading
This house is heated by forced hot water. Natural gas is burned to heat the water that is stored in a loop that goes to the radiators in the house. When the thermostat recognizes that the room temperature has fallen below a set limit, a signal goes to the furnace, which turns on and heats the water. Heated water then flows through the pipes to the radiators. The radiators are heat exchangers, and transfer the heat into the air in the room. When the temperature at the thermostat reaches the preset level, the system stops sending hot water to the radiators. Continue reading
In this house, the hot water system uses a tank. Natural gas is burned to heat water, which sits in a tank until somebody turns on a faucet or appliance that demands hot water. The hot water then flows through the house’s pipes to the faucet, where it is used and then drained to the sewer system. Continue reading
Our eyes help us to perceive three dimensional depth by having two visual sensors, separated by about 100mm of distance. This slight difference between the right and left eye is enough for us to see what is in front or behind the things we see. Since most cameras have only one lens, they show a two dimensional view of the scene.
Stereograms were invented during the early days of photography, and used two cameras, slightly offset, to show three dimensional scenes. Continue reading
Using some laser cut parts, along with a handful of machine screws and nuts, wire, conductive tape, and packaged inside a take out food tub, you can make a three axis motor controller.
This controller was created as a super inexpensive, easy to assemble way to operate the SeaPerch underwater ROV. This controller allows you to make your own DPDT switches. You can also make the switch part using a different technique, and more standard materials. Continue reading