LenSwipe
CAD
All our modeling for this project was done in Solidworks 2022. It allowed us to run simulations and animations of our model, as well as just being a widely popular modeling software.
CAD Broken Down into Parts
Box
The box was modeled as one unit, but prototyped in acrylic.
Lid
The lid and mounts are a few separate pieces in order to make assembly easy
Gear Train
The gear train makes the rollers and CAMs turn in the desired directions
Rollers
The rollers are modeled with thin fins that will be flexible in TPU.
Shafts
Custom shaft model that includes the two shaft sections and the cap.
Use
The model can be animated to show user experience and product use.
First Model
Old first model was open and did not include a spray feature.
Assembly Drawing with Important Parts Labeled
There are not many smaller assemblies in this design unless the lid is counted when it is disconnected from the hinges. Each part is designed to be modular and replaceable without having to take apart the whole box. One example of this is the rollers.
This Solidworks drawing of the final CAD model shows the number of iterations that our group went through during this project, e.g. the version numbers of parts such as the lid and spray arm.
The tank and housing part that is used in this model was scrapped during prototyping, and a precision lab fluid bottle was used instead.
Exploded View
Detailed Parts
The gear train contains:
- Driving/Crank gear
- Two idler gears
- Two roller gears
- One CAM gear
The rollers turn inwards toward each other, and the CAM gear turns clockwise, spinning the CAM backward towards the back of the box
The lid has a few parts:
- The lid body
- Closing latch
- Spray heads
- Spray levers
- Hinge connection holes
- Front and Back spray mounts
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The spray works by CAm actuation. The CAM is spun backward, which depresses the spray lever extension arm. The snail-shaped CAM presses more on the extension arm when it is fully extended. When the arm is depressed enough, the spray head will spray.