Over the last few days, I have started designing and ordering the dynamic parts for my project. The list below are the top action items, that I need to complete for the success of my final toy.
- Hydraulic System – The mechanics behind making the spider move are going to be tricky. My idea is to use a manual torque spring to compress a central bag of liquid to cause enough pressure for the legs to raise the body up. I plan on prototyping using a syringe, and plastic tubing to better understand, measure, and test the standing mechanics. If this does mechanism is unfeasible, then I will just use wire legs to support the toy spider up.
- Gear Mechanism – The torque spring will also simultaneously be rotating a gear train, so the spider can gain movement! Thus fulfilling the dynamic aspect of my project. I attached an image and caption to the bottom of this blog that explains how the device will function.
- TIME – As our Professor and other students have stated, time is a big factor here. I need to order my parts asap, so I can have my resources readily available. It will also take a few full days of working to prototype, test, and fabricate the hydraulic system and gear mechanism. I have started making a schedule for all the big projects, that I need to get done in this class and other courses. Plus, I want to make something that I am proud of!
- SHELL – This will be the aesthetic of my project, since the walking mechanism will be hidden and protected under either a 3D printed shell, or a silicon cast. Both have unique material properties and qualities that I need to take into further consideration.
- Aesthetics – They are a constraint, since I want to experiment with different styles. I have narrowed my spiders final form to one of two aesthetics on opposite spectrum: First idea was something extremely cute and cuddly; so very abstract, super colorful, maybe cartoon-y, and baby face features. Second idea was something super creepy and scary, like far in the uncanny valley. I wanted to build a 4-8 legged toy that is scary and gross like a zombie, or super cute like a teddy bear.
The image above describes the tinker toy mechanical system operates. A removable or non-removable key (1) is inserted into the torque spring (2). The torque spring is fixed to the body of the machine (3), which allows for the necessary tension to make a mother spur gear (4) rotate a set of gears. These gears (5) are attached, as shown in this image, to an axle which revolves the wheels (6) making the entire device move forward!