It’s a highly personal facet of the eating experience, the choice of topping applied to your frozen dessert. Everybody has their own preferences when it comes to whipped cream, sprinkles, and chocolate syrup. Should the maintenance of those preferences become a chore, there is a machine for that, and it comes courtesy of [Kristen Vilcans] and [Ramita Pinsuwannakub] in the form of their Cornell University project as students of [Bruce Land]. Their Automated Ice Cream Topper holds profiles for each registered user, and dispenses whipped cream, chocolate sauce, and candy sprinkles onto ice cream at the simple push of a button.
The hardware seems simple enough until you appreciate the many iterations used to ensure that it works smoothly. The bowl of ice cream sits on a motorised turntable, and a can of whipped cream is suspended above it upon rails made from kebab skewers. A servo and lever operates the can to release the cream. Meanwhile the sprinkles come from an inverted spice jar with a motorised disc to momentary align a hole with the jar’s spout, and the chocolate syrup comes courtesy of an air pump and some plastic tubing. The whole is controlled from a PIC32 microcontroller.
It is refreshing to see that such projects do not have to tackle especially high-tech problems to be extremely successful. We could all dispense our own toppings, but now we know there’s s machine for the task, who wouldn’t want to give it a try!
If ice cream student projects are your thing, perhaps you’d like a 3D printer?
After his last project left him with an eleven-pound block of aluminum, [Jason] got to thinking of what most of us would in that situation: fresh made ice cream. His mind was on the frozen concoctions of the aptly named Cold Stone Creamery, a mall food court staple where a chilled stone is used to turn fresh ingredients into made to order sundaes.
[Jason] did the math and found that an eleven-pound chunk of aluminum can absorb a little over 67,000 joules, which is over twice the energy required to freeze 100 g of water. In place of water he would be using cream, condensed milk, and strawberries, but believed there was a large enough safety factor to account for the differences between his ingredients and pure water.
His first attempt didn’t go exactly as planned, but with his Flir One he was able to back up his theoretical numbers with some real-world data. He found that he needed to start the aluminum block at a lower temperature before adding his ingredients, and through experimentation determined the block only had enough energy to freeze 30 g of liquid.
In the end [Jason] was satisfied with the frozen treat he managed to make from the leftovers of his radial mill project, but theorizes that an ever better solution would be to use a brine solution and drop the aluminum block all together.
Of course, if putting food on a slab of metal from your workshop doesn’t sound too appealing, you could always go the NASA route and freeze dry it. Either method will probably make less of a mess than trying to print objects with it.
Three MIT students decided that 3D printers just aren’t interesting enough on their own any more. They wanted to design a new type of printer that would really get young kids engaged. What’s more engaging to children than sugary treats? The team got together to develop a new 3d printer that prints ice cream.
The machine is built around a Solidoodle. The Solidoodle is a manufacturer of “accessible” 3d printers. The printer is enclosed inside of a small freezer to keep things cold during the printing process. On top of the machine is a hacked Cuisinart ice cream maker. The machine also contains a canister of liquid nitrogen. The nitrogen is used to blast the cream as it leaves the print head, keeping it frozen for the 15 minute duration of the print.
It sounds like the team ran into trouble with the ice cream melting, even with the liquid nitrogen added. For a single semester project, this isn’t a bad start. Be sure to watch the clip of the machine running below.
Continue reading “Print Tasty Treats With MIT’s Ice Cream Printer”
Part one and Part two of Hackerspace Pumping Station: One taking on the Scion challenge are up and ready for your viewing pleasure. The team at Pumping Station: One built a Tron themed bicycle that when setup properly, would churn ice cream that turned your urine neon in about 6 minutes by using dry ice and ethyl alcohol. Besides sounding not so tasty, and having a multitude of problems along the way, the project turned out the be a success. The question becomes, does it stand up to the last Hackerspace, NYC Resistor, who made a drink mixing slot machine? And how will both fair against the up and coming Musical Building by Crash Space?