Embedded Files
Our device utilizes a roller ball mechanism to dispense hair oil effectively and in a “feel good” manner. The robust plastic casing ensures a secure grip for users, while the NinjaFlex reservoir allows flexibility in the ball bearings casing when applied to the scalp. Users can easily dismantle and reassemble the device as needed.
From the feedbacks received on the Proof of concept prototype and further elaborated study on the human hand, we decided to increase the dimension of our prototype to ensure that an average human hand can fit in our product easily. This would not only ensure that we make are device suitable for people but also ensure that larger diameter and increased height of the curvature makes it difficult to make your hands messy.
From our extensive reading it was evident that an average female hand length is 6.7 inches while that of a male is 7.44 inches. And at the same time average width of a female hand is 3.1inches while that of a male is 3.5 inches.
ENGINEERING DRAWINGS
ENGINEERING DRAWINGS
mane_magic_v3.pdfbase_v2.pdfholder.pdftop_casing_v2.pdfsilicon_reservoir_v4.pdfreservoir_lid_v2.pdflid_knob.pdfCAD MODEL & ASSEMBLY PLAN
CAD MODEL & ASSEMBLY PLAN
You can readily grasp the step-by-step instructions for assembling our device from scratch in this section. Even though our devices will be delivered to users in complete assembled state, it's crucial to comprehend the assembly instructions for mass-produced products so that someone other than the designer can fabricate the component and put it together for usage.
Roller balls & roller body integrates to form the main component of dispensing mechanism
2. Sub-assembly of Roller ball & Roller body
3. Sub-Assembly of Rollers integrates with flexible silicone reservoir to form a secured oil holding tank
4. Sub-Assembly of rollers and flexible silicone reservoir
5. Insert the flat top lid inside the grooves of silicone reservoir to secure the holding area.
6. This sub-assembly acts as the main interface with the user to fill the oil in the reservoir
7. Insert the flexible silicone reservoir in the hollow stabilizing ring.
8. This sub-assembly helps to secure the two components together.
9. Insert the flat top twist off cap to the flat top.
10. This completely seals the reservoir and ensures there is no possibility of leakage
11. Attach the top casing to the hollow stabilizing ring with quater turn.
12. Use Mane Magic to effectively and in less messy manner to oil your scalp.
13. Once the deivce is cleaned after the use, it is now ready to be stored for the next use.
14. Simply place the device in the storage place.
MANUFACTURING: 3D PRINTING
IMG_8514.movPROOF-OF-CONCEPT PROTOTYPE
PROOF-OF-CONCEPT PROTOTYPE
FINITE ELEMENT ANALYSIS
FINITE ELEMENT ANALYSIS
A computational technique called finite element analysis (FEA) is used to forecast a product's response to external forces, vibration, heat, fluid flow, and other physical impacts. Finite element analysis provides information on a product's likelihood of breaking, wearing out, or performing as intended. FEA simulation is used in the product development process to forecast the outcomes of the product's real-world use, ensuring that it accomplishes the functions required of each component in a safe and effective manner.
How does finite element analysis work?
How does finite element analysis work?
Using shapes like cubes or tetrahedrons, a real item is divided into thousands or even millions of finite elements by finite element analysis (FEA) software. Equations based on mathematics aid in the prediction of each element's behavior. The behavior of the actual object is then predicted by a computer by averaging or adding up all of the individual behaviors.
Finite element analysis is useful in predicting how various physical influences, such as the following, would affect a product's behavior:
Mechanical strain
Vibrations in mechanics
Weary State of Mind
Transfer of heat
fluid movement
The electrostatic field
Injection molding of plastic
WHAT WE DID ON OUR PRODUCT
WHAT WE DID ON OUR PRODUCT
As per a study of modeling contact forces during human-robot interactions for performing activities of daily living. It was observed that the hair brushing task task force at a specific contact point has an overall maximum force of 55.66N.
Since this value is the maximum force that would act on a given contact point, we used this data to perform our static load analysis to understand if our model will be able to withstand the kind of loading.
In order to do so, we applied a load of 55 N across all the roller ball in all the 3 directions to simulate a dynamic scenario.
In the above pictures we can see that a 55N load is acting on each roller ball in all the 3 directions simulating a dynamic scenario and the upper surface is fixed as it would be in the actual device.
The results showed that maximum von mises stress of 4299.41 kPa and minimum von mises stress of 3.00 kPa. The displacement magnitudes were very under the safe limits. Maximum displacement observed was 3.261 mm and minimum displacement was 0.0 mm.
VON MISES STRESS - Made with Clipchamp (1).mp4
DISPLACEMENT MAGNITUDE - Made with Clipchamp.mp4
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