The inspiration for this came from the videos out there on youtube of people making dippin dots by dripping melted ice cream through a syringe into a bowl of liquid nitrogen. When trying to replicate this effect I found that it was painfully slow at producing dippin dots so I tried to come up with something that would be more suitable to produce dippin dots from melted ice cream at a higher quantity.
This instructable contains my two attempts at creating a dippin dot machine. The first one was based on the method that I described of dripping melted ice cream into a syringe. I essentially tried to automate the process of pushing the back of a syringe so that I could just set the machine up, step back, and watch as the dippin dots were made. However after completing the first device I realized that their was a much simpler and more effective way to make dippin dots quickly. The second device is just a container with a bunch of holes in the bottom and it is put over a bowl of liquid nitrogen. I will go thorough the construction of both of these devices in this instructable although I would recommend making the second device if you actually wanted to make a lot of dippin dots.
- 2x4's I ad enough laying around to make a 3'x2' frame
- Wood Screws
- 3/8'' inch polyurethane tubing
- 4 Syringes
- Two plastic bottles
- Three 3/8'' T-connectors
- you will need a valve to control the flow (not pictured)
- 3 bowls (metal isn't necessary)
- Airtight plastic container
- Paracord (or other string)
- Liquid Nitrogen*
- Dermel (this was only used for cutting the metal bowl and the bottles)
- Dewar (for holding the liquid nitrogen)*
*Liquid Nitrogen can be purchased at a local welding supply store if you have a suitable dewar
*Used Dewars can be found on ebay for relatively cheap. Some welding supply stores will also rent them to you.