Team 13


Project Overview  |  Proof of Concept  |  Final Design  |  Fabrication  |  Testing and Results  |  Meet the Team  |  Acknowledgements

Project Overview

Team 13 is a group of mechanical engineers from the University of Nevada, Reno. Their capstone project is focused on making a rapid cleaning solution for protein shaker cups. This is a sit on counter top high water pressure cleaning solution. This product is designed for the everyday gym goer to clean their water bottles fast and effectively. This simple solution will sit on the countertop of your kitchen for easy everyday use, while maintaining a sanitary environment.


Proof of Concept

Testing is broken up into two phases. The first phase is to determine what combination of the three flow rates and three nozzle sizes is best for cleaning. This phase consists of nine experiments so that every combination of variables can be tested. All nine combinations will be ranked, one through nine with nine, having the best cleaning of bottles. Cleaning effectiveness will be decided by inspection. The temperature is held constant for this phase of testing.


Final design


The Bottle Bath is designed to facilitate an easier shaker bottle cleaning experience. Shaker bottles are a staple of the average gym goers routine as a way to conveniently carry and mix different protein and supplement drinks. These bottles are used on a daily basis and often more than once in a day and so are often in need of cleaning. This leaves the user with only a couple cleaning options; run the dishwasher several times a day, clean the bottles by hand, or purchase several bottles to cycle through. The Bottle Bath seeks to be a better option, where a bottle can be cleaned easily without the need to run the dishwasher or scrub by hand. In a matter of seconds, a bottle can be made usable again. The Bottle Bath is a countertop appliance that needs no special fittings and can work in any home.

Our Solution

Our solution is a high pressure water systems that makes it quick and easy to clean the protein out of your blender bottle. It is a simple device that only needs to be plugged into a wall outlet and turned on in order to use. There will be a refillable container where the water comes from, so there is no need for hoses running to the sink or to the water line. It also contains a pump that will be responsible for delivering the high pressure water. The shell of the Bottle Bath will be suitable to multiple designs and sizes of blender bottles. With a large circular housing and circular nozzle spray, every typical consumer blender bottle will be compatible and easy to wash.

Product Application

While the original application of our product is for the average consumer home, the team envisions the product being applied in other different scenarios such as at the gym and in public places. As people become more prone to using protein shaker bottles and reusable bottles in their daily lives, the need for a convenient way to clean them grows. Imagine using the same shaker bottle for taking pre-workout before the gym, protein after the gym, and as a water bottle throughout the rest of the day. With the Bottle Bath available at gyms and in other public places, that becomes significantly more possible, allowing for a quick rinse in between uses.

Mass Production

The resources to mass produce the Battle Bath are not at the disposal of the DSF team. In order to mass produce this product DSF will have to find a company with the resources to do so. The manufacturing and building of this would not be an easy task and requires large scale equipment with an equally large labor force. This is a long term problem that will be an important fixture in the Bottle Bath business plan. Through extensive research and hard work the team will be able to find a solution. The manufacturing process is a daunting task that will eventually make or break this product. As this is a far away goal the team has ample time to find the right way to complete this process and allow for the Bottle Bath to take off as a product positively affecting the lives of active people everywhere.



The manufacturing of the parts were all done with the 3D printers at the Innevation Center with PLA plastic. The parts were designed to be easily printed without the use of support material. In this fashion smooth surface finish was obtainable. The inside ring and base were printed with a triangular 25% infill for extra density as these parts will be coming into the most friction with other parts. They also had 6 top and bottom layers with a layer height of .2mm totalling 1.2mm top and bottom thickness. The ring and rod holders were printed with 4 top and bottom layers totalling a thickness .8mm. All prints had 2 outside perimeters with a nozzle size of .2mm totalling a .8mm wall thickness. The prints all feature a triangular infill as they were printed with a delta 3D printer system and can obtain optimum speeds with this configuration. These slicing configurations were made in simplify3D to generate the gcode. The tank was made out of .1” thick acrylic that was cut with a C02 laser at the Innevation Center. This acrylic was then heated up with a heat gun and molded into a circular fashion. It was then glued in place with CA glue to hold its shape. The inside edges were then sealed with a waterproof food grade silicon glue. The inner support metal rods of the bottle bath were cut to length with the band saw at the Innevation center.


The inner ring was inserted into the outer ring of the body. The pump was then inserted into the cleaning manifold and screwed to the manifold. Silicone glue was inserted around the cleaning manifold pump hole to prevent leaks. The drainage tube was then attached to the drainage hole in the cleaning manifold. Silicon glue was applied around the drainage hole to prevent leaks.Then the cleaning manifold was glued onto the top of the inner ring. Next the z limit switch was secured into place near the top of the outer ring . The rods with springs and spring holders were attached at the base and top of the cleaning manifold. Next the solenoid was secured to the base with screws. The base was then attached to the outer ring completing assembly.


Testing and Results


Our plan for testing our project was to test the visual cleanliness of a blender bottle after each cycle through the Bottle Bath. The blender bottle was first partially filled with a constant amount of protein powder and water to simulate the leftover protein stuck inside a blender bottle after the user finishes their protein shake. Each dirtied bottle went through a consistent cycle of 5 seconds on the Bottle Bath. After each cycle, the bottle was inspected visually for any leftover protein shake residue on the bottle. Based on our criteria for cleanliness the team judged how clean the bottle was and assigned it a rating. The product was tested during one period with a total of 10 trials. Cleanliness was determined by figure 1. The results of the testing are seen in figure 2, where a graph of these results are seen in figure 3.


Figure 1, Cleanliness Definitions

Figure 2, Results of test runs

Figure 3, Results of test runs graphed


Overall the Bottle Bath did function in the manner that it was designed to. When pressed down the bottle bath did eject a high velocity stream of water through its nozzle head, effectively cleaning the protein shakers applied to the head. During some tests the Bottle Bath did not fully clean the walls of the protein shaker. This was most exhibited when the protein was let to dry to the walls of the cup. When this occurred the Bottle Bath struggled to remove the protein from the walls. This occurred in tests 3, 8, and 10. The Bottle Bath failed on these tests because the velocity of the water was not high enough. To fix this problem we would need to install a pump with a higher flow rate and PSI.

Our product solves the problem of cleaning your blender bottles multiple times a day after the gym. With the Bottle Bath you can rapidly rinse your protein shaker right after the gym to get the protein residue unstuck from the bottle. This solves the problem of letting protein shakers being left uncleaned and eventually thrown away due to the foul odor often left behind.

There are a couple factors that will make things easier for users. One is the installation of the product. Competitor’s products require a much bigger task to install by having to connect it to a water line which for most consumers requires hiring a plumber. Ours is a countertop solution that is simple to plug into an outlet and fill with water and it is ready to use. Another factor is the simplicity and quickness of it. Rather than running time consuming dishwasher cycles, our product provides a fast way to keep the protein from building up on users blender bottles.

Users feel that this product is an innovative approach to making a mundane task more efficient and effortless. By streamlining the process of cleaning protein shaker bottles, consumers find that they are willing to use their shaker bottles more frequently throughout the day while saving both time and energy. This enables consumers to achieve their fitness goals more faster, by increasing their ability to consume supplements and increasing the overall versatility of protein shaker bottles.

The products design matches its purpose in that it’s supposed to be something that is convenient for storage on a countertop with its fairly small dimensions. The product was also supposed to be easy to use with only a small motion of the hand and very little force. Our design matches this purpose in that you can use this product with one hand and it works as intended, just a small force to get the water flowing and clean the bottle.


Meet the Team


Dayton,Joseph Michael

Joseph Dayton

Joe was born and raised in Reno, Nevada. He came to the University of Nevada, Reno in the fall of 2013 on a presidential scholarship. He plans to graduate in the spring of 2017 with a degree in mechanical engineering and a minor in unmanned autonomous systems and then work in industry in the Reno area.





Hoffman,Peter Lee

Peter Hoffman

Peter is a 5th year senior from Loomis, California. After Spending a year at a community college, he started work on his mechanical engineering degree from the University of Nevada where he has been heavily involved in academics and campus organizations such as the Wolfpack Rugby Club and Sigma Phi Epsilon Fraternity. Peter is currently an engineering intern in the mechanical contracting industry, and plans to stay in Reno after graduating in spring of 2017.




Wehrhan,Colin T

Colin Wehrhan

Colin is a senior at the University of Nevada Reno but is originally from Davis, California. He plans on graduating in Spring 2017 with a bachelor’s degree in mechanical engineering. As of right now he balances school and work at the Nevada Innevation Center. He plans to stay in either the rapid prototyping industry or the manufacturing industry.






Chambers,Zachary Martin

Zachary Chambers

Zach is from Roseville, California and is in his senior year at the University of Nevada, Reno. He plans to graduate in spring of 2017. He is currently an intern working in manufacturing engineering and plans to go into the manufacturing industry after graduation.







Arnaud Derval

Arnaud is a senior from Henderson, Nevada, a city located on the outskirts of Las Vegas. His academic accomplishments include receiving the Millennium Scholarship out of high school and maintaining a high GPA while being on the executive board of his fraternity and having a part-time internship. After graduating in the spring of 2017, Arnaud plans to stay in the Reno community and continue to work in the HVAC industry.










We would like to thank the Innevation Center for allowing us to build and prototype the bottle bath at their facility. As well as pushing prints through in a timely manner. Along with their recommendations on how to optimize the prints for the the Delta printers. In addition to this keeping open past normal operation hours to let us work on the Bottle Bath.

We would also like to thank our mentor KK Cheng for taking time to meet with our team periodically and giving his input and advice on our project.